Posts Tagged ‘second’

Windows: command to show CPU info, PC Motherboard serial number and BIOS details

Wednesday, March 2nd, 2016

windows-command-to-show-motherboard-bios-and-cpu-serials-and-specific-info-with-wmic

Getting CPU information, RAM info and other various hardware specifics on Windows from the GUI interface is pretty trivial from Computer -> Properties
even more specifics could be obtained using third party Windows software such as CPU-Z

Perhaps there are plenty of many other ones to get and log info about hardware on PC or notebook system, but for Windwos sysadmins especially ones who are too much in love with command prompt way of behaving and ones who needs to automatizate server deployment processes with BATCH (.BAT)  scripts getting quickly info about hardware on freshly installed remote host Win server with no any additional hardware info tools, you'll be happy to know there are command line tools you can use to get extra hardware information on Windows PC / server:

The most popular tool available to present you with some basic hardware info is of course systeminfo

 

C:\> systeminfo

Host Name:                 REMHOST
OS Name:                   Microsoft Windows Server 2012 R2 Standard
OS Version:                6.3.9600 N/A Build 9600
OS Manufacturer:           Microsoft Corporation
OS Configuration:          Member Server
OS Build Type:             Multiprocessor Free
Registered Owner:          Registrar
Registered Organization:   Registrar
Product ID:                00XXX-X0000-00000-XX235
Original Install Date:     17/02/2016, 11:38:39
System Boot Time:          18/02/2016, 14:16:48
System Manufacturer:       VMware, Inc.
System Model:              VMware Virtual Platform
System Type:               x64-based PC
Processor(s):              1 Processor(s) Installed.
                           [01]: Intel64 Family 6 Model 45 Stepping 7 GenuineInt
el ~2600 Mhz
BIOS Version:              Phoenix Technologies LTD 6.00, 11/06/2014
Windows Directory:         C:\Windows
System Directory:          C:\Windows\system32
Boot Device:               \Device\HarddiskVolume1
System Locale:             de;German (Germany)
Input Locale:              de;German (Germany)
Time Zone:                 (UTC+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm,
 Vienna
Total Physical Memory:     4,095 MB
Available Physical Memory: 2,395 MB
Virtual Memory: Max Size:  10,239 MB
Virtual Memory: Available: 8,681 MB
Virtual Memory: In Use:    1,558 MB
Page File Location(s):     C:\pagefile.sys
Domain:                    dom1.domain.com
Logon Server:              \\DOM
Hotfix(s):                 148 Hotfix(s) Installed.
                           [01]: KB2894852
                           [02]: KB2894856
                           [03]: KB2918614
                           [04]: KB2919355
…..


Now though systeminfo's hardware details and installed Windows KBXXXXX OS Hotfix patches are getting lists the command does not provide you with info about  system’s BIOS, thus to get this info you'll have to use also wmic (Windows Management Instrumentation Command).
 

 

So What Is WMIC?

WMIC extends WMI for operation from several command-line interfaces and through batch scripts. Before WMIC, you used WMI-based applications (such as SMS), the WMI Scripting API, or tools such as CIM Studio to manage WMI-enabled computers. Without a firm grasp on a programming language such as C++ or a scripting language such as VBScript and a basic understanding of the WMI namespace, do-it-yourself systems management with WMI was difficult. WMIC changes this situation by giving you a powerful, user-friendly interface to the WMI namespace.

WMIC is more intuitive than WMI, in large part because of aliases. Aliases take simple commands that you enter at the command line, then act upon the WMI namespace in a predefined way, such as constructing a complex WMI Query Language (WQL) command from a simple WMIC alias Get command. Thus, aliases act as friendly syntax intermediaries between you and the namespace. For example, when you run a simple WMIC command such as

Here is how to wmic to get PC Motherboard serial numbers, CPU and BIOS details:

 

C:\> wmic bios get name,serialnumber,version

 

Above will print  name if your BIOS, current version and it’s serial number if there is any.

If you need to get more info about the specific Motherboard installed on host:

 

C:\> wmic csproduct get name,identifyingnumber,uuid

 

This command will show motherboard modification and it’s UUID

If you want to quickly get what is Windows running hardware CPU clock speed
 

C:\> wmic cpu get name,CurrentClockSpeed,MaxClockSpeed

 

Also if you have turbo boost CPUs above command will help you find what’s the Max Clock Speed your system is capable of for the current hardware configuration.

If you do have dynamic clock speed running, then add this line, will refresh and monitor the Clock speed every 1 second.
 

C:\> wmic cpu get name,CurrentClockSpeed,MaxClockSpeed /every:1

Actually wmic is a great tool

Axion Estin – It is Truly Meet feast in Bulgarian Orthodox Church

Thursday, June 11th, 2015

Today is a glorious feast in Eastern Orthodox Churches (especially in Slavonic ones) because on this day an ArchAngel Gabiel on Holy Mount Athos in year 773  handed an Angel song in praise of the Theotokos (Virgin Mary), Mother of our Lord and Saviour Jesus Christ.

 

Dostojno_est_It-is-truly-meet-orthodox_icon
 

Liturgical use

The hymn is chanted at Matins, Compline, and other services; but its most important occurrence is at the Divine Liturgy, where it is chanted at the conclusion of the Anaphora. The second half of the hymn, "More honorable…" is frequently chanted before the dismissal which concludes services.

Often, the chanting of this hymn is followed by either a metania or a prostration.

It is truly meet In Church Slavonic

Досто́йно ’е́сть ’я́ко вои́стину блажи́ти Тѧ֨, Богоро́дицу,
Присноблаже́нную ’и Пренепоро́чную ’и Ма́терь Бо́га на́шего.
Честне́йшую херуви́мъ ’и сла́внейшую безˈ сравне́ния серафи́мъ, безי ᾿истле́ния Бо́га Сло́ва ро́ждшую,
су́щую Богоро́дицу, Тя֙ велича́емъ.

 


It is Truly Meet in Bulgarian / Достойно есть

 

Достойно е, наистина, да Те облажаваме, Богородице,
винаги блажена и пренепорочна и Майка на нашия Бог.

По-чтима от херувимите и несравнено по-славна от серафимите,
нетленно родила Бог Слово, същинска Богородица, Те величаем.

 

Holy_Mother-of-God-Theotokos-All-the-world-rejoice-in-you

All the World rejoices in You Holy Icon

Axion Estin (Greek) – It is truly meet

It is truly right to bless thee, O Theotokos,
thou the ever blessed, and most pure, and the Mother of our God.
Thou the more honorable than the cherubim,
and beyond compare more glorious than the seraphim,
who without corruption gavest birth to God the Word,
thou the true Theotokos, we magnify thee.

Introduction of Holy Virgin Mary in Solomon’s temple feast in Orthodox Church – 21 November

Saturday, November 22nd, 2014

Presentation-of-Theotokos-st-Joachim-and-Anna-bringing-the-Virgin-Mary-to_Jerusalem_Temple_feast-of-introducition-of-Mother-of-God-into-temple
Presentation (Introduction) of the Holy Mother of God (Virgin Mary)
to the Solomon's temple (at that time of event the second temple) is celebrated on 21th November each year in the Orthodox Church (some Orthodox Churches like Russian / Serbian Orthodox celebrate the feast 13 days later because still celebrating the feast according to the Julian Calendar). Feast is celebrated also on November 21 in Roman Catholic Church but not celebrated in Protestant Church, because the feast is part of Church's tradition and its source of veneration is not the Holy Bible but the apocryphal book the Infancy Narrative of James (Gospel of James) also known as Protevangelion dated from (~ 147 A.D. – 170 AD

The feast is one of the Great feasts in the Church part of 12 Central Church Feasts;

September 8, the Nativity of the Theotokos
September 14, the Exaltation of the Cross
November 21, the Presentation of the Theotokos
December 25, the Nativity of Christ/Christmas
January 6, the Baptism of Christ – Theophany, also called Epiphany
February 2, the Presentation of Jesus at the Temple
March 25, the Annunciation
The Sunday before Pascha (Easter) – the Entry into Jerusalem or Flowery/Willow/Palm Sunday
Forty Days after Pascha (Easter) – the Ascension of Christ
Fifty Days after Pascha (Easter) – Pentecost
August 6, the Transfiguration
August 15, the Dormition (Falling Asleep) of the Theotokos

The feast commemorates the entrance of the Holy Theotokos for a first time into Jerusalem's temple which (for Jewish was the only temple where believed God lived in his full Glory). The Jewish even though gathering in Synagogues to read the Old Testament (Talmud) and pray, does not understand Synagogues in the sense we Christians understand Churches. According to Old Testament given revelation to the Jews, there was one temple holding the (The Ark of the Covenant) nowadays said to be kept in Ethiopian Orthodox Church in the city of Axun. In this temple people went for a special pilgrimage, thanksgiving to God and prayer. The Temple of Jerusalem was a religious site for pilgrimage which is similar to Mecca is for Muslim and  as Jerusalem's Tomb of Jesus (The Church of Sepulchre) is for us Christians. The temple was separted in 3 major parts:
Porch, Holy Place and Holy of Holies. In the Holy Place only priests and priest helpers could enter to service to God and in the Holy of Holies only the High Priest could enter once a year to sacrificy animal according to Jewish Custom. For us Orthodox Christian the High Priest nowdays is the Bishops, Arch-bishops, Metropolitans and Patriarchs). 

Virgin_Mary-outrunning-the-young-maidens-who-intruduced-her-to-Jerusalem-temple-choosing-Gods-chooseness-of-the_Theotokos

All believing members of the Jewish community B.C. had to be presented "officially" in front of God in the Holy Temple. When the Holy Virgin was born from the already aged (around 90 years old) St. Joachim and St. Anna. The parents out of thankfulnes to God for giving them a child dedicated their child Mary to God and when Virgin Mary turned 3 years old, st. Joachim and st. Anna decided the time to fulfill their promise and offer the Holy Theotokos to the Lord has come and after gathering other young neighbor girls (which were to introduce Mary) holding lighted torches walked in front of the young Mary.

Remarkably the Holy Theotokos walked straight without even looking back to their parents weeping (as most children does) or felt regret for being separated with parents. It was remarkable miracle showing she was choosen by God to become the Mother of the Saviour when her parents left her on the first high step (out of 15 big steps) leading to the temple, she could climb freely like a grown person without falling or showing any weakness a usual kid would do. As the young girls were singing from the Holy of Holies the High priest being told in advance by the Holy Spirit came out to receive the young kid which later become the Mother of our Saviour Jesus Christ. 

Entrance_Introduction_Presentation_of-the-Virgin-Mary-to-Jerusalem-Temple
The young Mary run in joy to the hands of the High Priest Zacharias who were waiting her at the gate of the temple with other elders outrunning the other maidens.

Zacharias blessed her saying, "It is in you that He has glorified your name in every generation. It is in you that He will reveal the Redemption that He has prepared for His people in the last days."
Then, Zacharias brought the child (being moved by the Holy spirit) into the Holy of Holies place where only the High Priest was permitted to enter once a year on the Day of Atonement. He placed her on the steps of the altar, and the grace of the Lord descended upon her. The Holy Theotokos arose being overfilled by the unspoken joy that only the Spirit of Truth.

The Entrance of the Theotokos into the Temple signifies her total dedication to God and her readiness for her future vocation as the Mother of the Incarnate Lord.  

HYMNS OF THE PRESENTATION OF THEOTKOS TO JERUSALEM TEMPLE

Apolytikion (Fourth Tone)
Today is the prelude of God's pleasure and the proclamation of man's salvation. The Virgin is clearly made manifest in the temple of God and foretells Christ to all. Let us also cry out to her with mighty voice, "Hail, fulfillment of the Creator's dispensation."

Kontakion (Fourth Tone)
Today, the most pure temple of the Savior, the precious bridal chamber and Virgin, the sacred treasure of God, enters the house of the Lord, bringing the grace of the Divine Spirit. The Angels of God praise her. She is the heavenly tabernacle.

 

Pilgrimage to Holy Mount Athos, second most holy place on Earth – The Garden of Holy Virgin Mary – Agios Oros Authonomous Orthodox Christian Monk Republic and how to go there

Monday, September 1st, 2014

trip-to-holy-mount-athos-the-garden-of-most-holy-virgin-Mary-agios-oros-authonomous-orthodox-christian-monk-republic
By the mercy of the most holy Virgin Mary, I had the opportunity to be for 2 days and a half to the second most holy place on earth after Jerusalem's (Holy Sepulchre Church of Christ Resurrection) and biggest monk governed republic on planet earth ( Άγιον Όρος ) Agios Oros Athon (Holy Mount Athos)Светая Гора Афон – Света Гора Атон. Holy Mount Athos exists as a large monks community since 96.

To visit Mount Athos, the general requirement is to be orthodox christian only 10 visas per day are issued for non-orthodox pilgrims.

This immersely blessed place on earth can be entered only with a special monastery issued Visa (Diamontirion)

holy-mounth-athos-diamontirion-special-monk-republic-visa
There is a special procedure which usually takes up from 1 month max to 2 weeks min to receive such a Athos visa. The procedure to receive Visa for Holy Mount Athos includes sending of a fax to the Bureau of Pilgrimage in Thesaloniki (Solun) with a copy of the ID Card (Passport) the tel. number to send the fax to plus.
In fax message should be included the desired monastery to visit and the stay period. Visa which is usually issued for 2 / 3 days period costs 25 euro. There is a daily quota of visits to be issued which is about 100 visas per day.
People who want to stay for more than 3 days in monastery has to follow special obediences (work given to pilgrimage inside the monastery).
Extensive information
on how to visit Holy Mount Athos monks republic is on holy mount athos website.

Diamontirion is given only to man (only man can visit holy island), because the Mother of God The Holy Virgin Mary said she will be the only woman on this island unto the end of the world. There were a couple of times through out history from the IX-th century from which Holy Mount Athos exists as a monk republic in which woman try to enter the island, but such attempts failed and usually woman who tried to break out the island female enter prohibition (known as ABATON) get severely sick after that and couldn't get well for a long time some died some female after serious redemption confession and taking the holy sacraments recovered by the mercy of the Virgin Mary. There are already several stories of woman who tried to enter the island dressed as men and which have suffered from the quick heavenly judgement and later told the world their stories to warn other woman from trying to enter Athos which is the most eastern part of Chalkidiki peninsulaIt is curious fact Holy Mount Athos is the one and only place on earth existing prohibited for woman.
While talking about woman it is a curious fact that the only woman that are allowed being iconographed in Holy Mount athos due to rule are the Most Holy Virgin Mary, The Anna and the Hermit Saint Mariya of Egypt. First monk is said in Monastic Chronicles is Protos in y. 908.

Agion_Oros_Holy_Mount_Athos_Holy_Mother_of_God_Panagia_pokrov_vesture

The region is governed by the "Holy community" – every monastery from the 20 orthodox monasteries (actually the monasteries are 21 but one is schismatic with so called Zealots, therefore not counted).

holy_mount_athos_map_of_monasteries-location-agios-oros-map-karta_aton

There are (Greek, Russian, Bulgarian, Serbian) monasteries as well as Sketes, Cells, small chapels of other Orthodox nations – e.g. Romanians, Georgians, Macedonians, Monte-Negro etc. Holy Mount Athos monasteries are under the ecumenical Patriarch of Constantinople – currently patriarch Bartholomew, however the patriarch is not having power to decide anything the monasteries or the monk republic and he is more than a public person with no authority over internal island monks life.

Entrance Holy Mount Athos is possible only through a small  ship due to monks republic governing law. Boats transport people with issued visa only from Ouranoupolis  port everyday from Monday to Saturday, there are at least 2 boats going to Agion Oros – one in 06:15 and one in 09:45 which costs 6.30 euro per person.

ouranoupolis-port-to-ship-to-mount-athos-halkidiki
For people who want visit Holy Athos by airplace, Ouranoupolis is located 120 km by car or bus from Thesaloniki Airport so you should fly to there. We have travellet to Uranoupolis by car from Sofia – it is about 6 / 7 hours driving – only 631 km.  Crossing the border from Bulgaria to Greece is very quick a passport check is made only one time on the border. Once arriving to Ouranopolis – one have to park somewhere, there is cheap paid parking only 5 euro a day, where one can park (nearby the port from where ship departs). To get the Athos visa there is a special Bureau where you go with you present your password and receive the visa. Visa is received in a very speedy manner it takes up to 30 seconds after showing the pass, you're name is checked and if visa is already present and printed for you you're handled the diamontirion.

There are also privately owned boats (scooters) which can transport up to 4 people – in case there are is not enough space in standar boats, but this are really expensive something like 120 EUR.
The Boat-Ship travelling from Ouranoupolis to Agios Oros is named after saint Anna (The Mother of Most Holy Virgin Mary – In Greek Panagia).

Agios_Oros_peak_Holy_Mount_Athos-with-seacoast-monasteries-picture

The ship is travelling only on days where the weather is suitable for travelling so some certain days there are no cruises to the garden of Holy Theotokos. The ships cruising back from Holy Mount Athos to Urunopoli schedule is also twice daily – and are the same ships travelling in the morning. One is saling back in 12:00 (stopping on each of the near coast monasteries ports) by reverse order and one in 16:00. Sometimes the ships doesn't stop one some of the ports and you can't go back to Urunipoli, when the ship has to many people or for some other God known reason.

On the ship of one moun Athos one can see a truly international monks community – there were literally Orthodox Christians monks from all around the world and people from all around the globe that has faith in the Lord Jesus Christ, there was even an African priest and a batushka (priest) from Cyberia. Most of the people on the boat were pilgrims from many nationalities but for major Church feast like The Dormition of the Theotokos (Virgin Mary) which is each year celebrated on 28 August a lot of monks from many country come to Athos to venerate the Mother of God and receive heavenly blessing.

We have stopped to leave some laggage on the Port of Bulgarian Monastery (located 7 km from Zographou Monastery – saint great martyr George (Свети Георги Зограф) and then continued to port of Dafni. Going back from the ship one can feel the abundant heavenly grace and the heavenly protection of the Theotokos. There were a small caffeteria where we drink Greek Coffee (a coffee prepared on a hot sand – very much like the Turkish coffee) and eat fasting food something like Bulgarian Banica but instead of cheese it is filled with baked pumpkin.
There are small bus-es moving in Mount Athos which brings to some of the more famous monasteries on Athos – bus ticket is 3 euro. However as we wanted to visit more monasteries and because every step made on Agios Oros is a blessing and as the elders say Agios Oros is to be walked, we choose to walk. We took a steepy pathway leading to Xiropotamos. Xiropotamous is famous from the XII century Crusaders times, Roman Catholic Crusaders has invaded the holy mount and tried to turn monks to Roman Catholicism by force, those who rejected to receive Catholic faith were killed by Catholics – became martyrs. Some of the Monks of Xiropotamou, decided to save their lives and accepted to recognize the authority of the Roman Pope, Roman Catholics entered the monastic Church and served a Roman Holy Liturgy in the moment where the Pope was mentioned in prayers as a head of the Church, the Church walls fall and killed most of the people in the Church, those who survived, escaped and converted back to Orthodoxy – by this God clearly showed which is the real Christian faith. As all monasteries on Athos Xiropotamou's brotherhood has holy relics – the biggest holy relic of Xiropotamos is about 20×5 cm sized part of the True Holy Cross on which the Lord Jeus Christ was crucified.

Xiropotamou_monastery_Holy_mount_Athos_Agios_Oros_The_Monastery_holding_big-piece-of-True-Crufixion-cross-of-the_Lord_Jesus_Christ

Xiropotamou was founder in 10th century, and is dedicated to the Forty Martyrs of Sebaste.
The monastic walls were closed when we reached there around 10:00 in the monastery receives visitors only 2 times a day one in 11:30 and one in 16:00. Waiting for to become 11:30, we walked around the monastery and saw the small chapel the grapes, the monks fruit gardens all is exceptionally beautiful – the monastery is quite big. In 11:30, when inner monastic walls opened we were invited into Arhondarik (The Monastic Guest-house), where the monk bring us immediately a cup of fresh water, Turkish delight and 50 grams of Greek national drink – Uzo 🙂
We met two other Romanians who wanted to also venerate the Holy Cross and we had a small nice chat with them in 11:30 the Church was opened and a priest bring us to a small square near Holy Altar opened a golden case with emeralds keeping the big piece of the True Holy Cross it is an amazing miracle that for this 1980 years from the Crucifixion of the Lord Jesus Christ the wooden didn't rot but preserved – any normal wood decays for such a long time! God's grace (The Spiritual Power) that one feels nearby the Holy Relic is amazing. The monastery is also famous with an orange tree giving a miracle making (healing) fruits, the three failed to give its fruit when Catholics came to Holy Mount Athos and started giving its fruits again after Catholics leaved Agion Oros. We saw a couple of trees with Orange fruits on it but was unsure which of the trees is the actual tree about which monastic tradition tells.
After the monastery we catch the way to Karyes (Καρυές) which is like Capital town, seat of the administration and has the name "Megali Mesi Lavra" (Big Central Assembly). – they have Agios Oros Police, Hospital, Bakery, a Caffeteria, Public Toilet, 2 small shops in Karyes is also located the major church at Karyes, the Protaton, which is the church of the Protos, or president of the monastic community. It is Curios fact that initial "rules of the republic" were written in XII century by saint Archibiship Sava creator of Serbian Orthodox Church who lived in a small cell in Karyes (Карея).

Holy_Mount_Athos_1979_Athos_Karyes_Mainstreet_Athon_administration
In the Church on the picture is keeping the famous miracle making holy icon "Dostoyno Esty" / Достойно есть in Greek Panagia known as "Axion Estin" meaning It is Truly Meet . This icon is so important and connected to Orthodox Christiainity, that it has a Troparion included to be sung on each Holy Liturgy in praise of the (Theotokos) Mother of God  and sung on almost all kind of morning and evening services or private prayers, it is curious fact that the icon before its glorification was situated in a small monk cell near monastery Pantekrator (All Keeper). There is a notable miracle how the second part of Axion Estin Church troparion was given by an Angel supposedly given by Archangel Gabriel. At the Axion Estin cell in year 982 was living an old virtuos monk Gavrail with his desciple, that night Gavrail was outside of the cell to nearby monastery for all night vigil leaving the young monk (also Gavrail / Gabriel)  at midnight a stranger come knocked on the door and in Agios Oros tradition was received as a stranger, the stranger also went for the night vigil in the morning the stranger and the old monk sung together troparion in glorification of the Holy Mother of but the stranger sung it differently adding few words to the already well known and established church song lyrics, the monk liked the song so much that he asked the monk to write down the lyrics, they didn't have a pen and paper and the stranger took a piece of stone and write down the lyric using his finger! The monk stunned realized the stranger is actually an angel and a short after the angel disappeared.

Mother_of_God_Panagia_Axion-Estin_Dostoino_esty_holy_icon_Holy_mount_Athos

Here is the Dostoino Esty Troparion lyrics text as given by the Angel in Church Slavonic, Greek and English:

Достойно есть Church Slavonic:

Достойно есть яко воистину блажити Тя, Богородицу,

присноблаженную и пренепорочную и Матерь Бога нашего.

Честнейшую Херувим

и славнейшую без сравнения Серафим,

без истления Бога Слова рождшую,

сущую Богородицу Тя величаем.

 

Axion Estin In Greek:

Ἐπὶ σοὶ χαίρει, Κεχαριτωμένη, πᾶσα ἡ κτίσις.
Ἀγγέλων τὸ σύστημα καὶ ἀνθρώπων τὸ γένος,
ἡγιασμένε ναὲ καὶ παράδεισε λογικέ,
παρθενικὸν καύχημα, ἐξ ἧς Θεός ἐσαρκώθη
καὶ παιδίον γέγονεν, ὁ πρὸ αἰώνων ὑπάρχων Θεὸς ἡμῶν·
τὴν γὰρ σὴν μήτραν θρόνον ἐποίησε,
καὶ τὴν σὴν γαστέρα πλατυτέραν οὐρανῶν ἀπειργάσατο.
Ἐπὶ σοὶ χαίρει, Κεχαριτωμένη, πᾶσα ἡ κτίσις
δόξα σοι.

It is truly meat English Translation:

All of Creation rejoices in thee, O full of grace:
the angels in heaven and the race of men,
O sanctified temple and spiritual paradise,
the glory of virgins, of whom God was incarnate
and became a child, our God before the ages.
He made thy body into a throne,
and thy womb more spacious than the heavens.
All of creation rejoices in thee, O full of grace:
Glory be to thee.


In shops it is forbidden to sell meat, because monks doesn't eat meat and meat consumption on holy mount Athos is generally forbidden. The only think closer to meat sold in shop is fish, octopus and other sea food. There is also a small shop selling Church / monk accessoaries, icons, prosphoras etc.

On the city center there is free drinkable water, each Monastery has a building like Embassy – which is both a monastery representative and a strangers guest-house (Konak). People who want can sleep a night in the Konak with a blessing, each Konak has a small chapel inside dedicated to Mother Mary or a certain saint.

On many places on holy mount athos there are springs with drinkable water so almost always there is a spring on every few hours walk in the mountain woods. About 10 or 20 minutes walk from Karyes, there is a Greek Monastery Koutloumousiou, the monastery has many miracle making icons and to me personally is very favourite place – Koutloumoush is famous with being the monastery where the Elder Paisios served as a monk for many years.

Koutlomous_Orthodox_Monastery_Holy_mount-Athos-near-Karya-the-monastery-where-the_Elder_Paisios-was-monk

After praying there, on the road we saw a sign for the cell of Elder Gavrijl and after some time we reached a little house with a bench in front and around 10 people from all age waiting for the Elder to go out for a while of his cell and tell some spiritual advises.

For non-Orthodox Christians, we have Elders who have a very close connection to God and due to their holy living God has blessed them with the gify of claiorvoyance, Starets Gavrijl is said by many on holy mount Athos that he has the gift of clairvoyance.


Elder Gavrijl speaks only Greek, so I couldn't undestand his preach, nomatter that even his presence made my spirit joy. After the preach we all took a blessing from those saintly living man.
I asked one of the Greeks to translate to me the Starets was talking about the Christian family and importance for husband and wife to be patient with each other, respect each other and truely love each other and most importantly forgive each other. He said that in this time it is of the main thing the devil wants is to destroy family and we have to not let family broke, he also said we should never quarrel infront of children, because when children grown they will do the same with their children.
I've asked the Starets about personal matters and he gave me the same answer as the Elder fr. Georgi of Jeglarci which is a proof fr. Georgi also have the gift of prophecy.

After leaving elder Gavrijl we headed to the monastery of Iveron to be on the all night vigil and the feast of Dormition of the Holy Theotokos. On the same way nearby 15 minutes away from the pathway we saw a sign leading to the cell of the Elder Paisios and we went for a pilgrimage there. After 15 minutes on a steep ways we reached in front of Elder Paisios small house. The house is now inhabitated by a monk who is still growing the same vegetable garden grown by Elder Paisios. The house is really small and the Starets lived in a small room 4×4 meters, the room has two big icons on the east just like a Church and light up night-light infront of the icons of Pantokrator (All-Keeper) Lord Jesus Christ and the Most Holy Theotokos, each wall in the small room has few icons hanging I remember clearly the icon of saint Arsenios the Great.  On entrance, we were threated by the monk with Turkish Delight and a cup of water, just like the Elder Paisios used to while still alive. Turkish Delight (Lokum) was the most delicious one I ever eat and on my way out I asked the monk for another two pieces 🙂

Going out of Elder Paisios cell we walkted through the Athos mountain woods passing by parakleses (small chapels) and on many places there were wooden crosses and icons with lightning candles in front right in the woods. We met some Romanian group of pilgrims and had a little chat on the road, Romanians are very good people, all the day we had the blessing to meet mainly Romanians.

approaching_Iveron_Monastery_Dormition-of-the-Most_Holy_Virgin_Mary_Mount_Athos

We reached in Iveron monastery (located nearby the sea coast) about 17:30 by God's mercy, the feast of Dormition had already begun there, it is an Orthodox Tradition to do a Lithia with the Miraculous Iveron icon of Most Holy Virgin also famous as Vratarnica.

Iveron_miracle_making-icon-Mother-of_God_Vratarnica-Holy_Mount_Athos
The monastery was full of people, there were probably about 800 people, probaly about 200 monks and priests were also there for the feast. It is a tradition that at that night the monastery gives a sleeping packs for all the pilgrims, so if someone feels to sleepy he can use the blanket and have a sleep on open air. There was an evening service just like it is done before Liturgy is served on next morning and right after the service, everybody present in the monastery was fed (all people ordered and had to enter 3 the monastic dining room divided by 3 waves). The food was some macaroni with some pieces of sea food (probably octopus), one tomato and 2 little pieces of watermelon. Even though the food was little it was enough to completely feed me plus it was so delicious you can't imagine, blessed  (manastic food) is always more delicious 🙂

Right after the dinner, the Night Vigil started, night vigils are common in the night before a feast of the Saint in whose honor is local Orthodox Church named in this case the Church of Iveron is in honor of the Dormition of the Mother of God and this was the reason for the Night Vigil. I and Pavel (the brother in Christ) which whome we travelled last night to Holy Mount Athos were quite tired and thus we didn't kept awake for the night vigil but immediately went to sleep and woke up on next morning about 5:10 and saw just a litte part of the night vigil and stay for the Morning service and the Holy Liturgy served. The Atmosphere in the Church was hard to explain in words it was powerful monks spirit. The service was in Greek as it is Greece Monastery and the service is serviced in Ancient Greek and as all ancient languages Ancient Greek is much more spirited than modern languages which are much more profane. Also it is distinctable that everything in the service was sung in Byzantine (Eastern) Orthodox singing style. For the service was also present 3 or 4 bishops, the atmosphere was mostly solemn and the fact that so many Orthodox Christians were gathered and praying together is an outstanding experience which I wish you feel someday.
All the Church service is done on candles, there is no electricity in Churches in Holy Mount Athos and I believe this is a right thing. In short the Church services in Athos is an the perfect example which the rest of us Orthodox Christians should try following.
After end of Church service, we left the monastery before the feastly lunch given to everybody who came to monastery to venerate the Dormition of the Mother of God, because we wanted to quickly move to pilgrimage the Miracle Spring, where the Mother of God has steped for a first time on Athos, we drink water prayed a bit and moved on and catched one of the minibuses stopping near the monastery to Karyes. In Karyes we drink some water have a small rest, drink coffe had some chat with Pavel and ate few peaches and apples, actually it is quite a miracle that we ate so little these 2 days on Athos, but in there you don't feel hunger and you don't feel sleepy and you need less sleep than usually because of the abundant God grace.
In Karyes, we had a small discussion where to head up from now and after calling monk Kliment from Zographou monastery for advise where to go he advised we go to the Russian Monastery Saint healer great-martyr Panteleimon (who is one of the main doctor Church saints). I was quite happy for our decision to go to the Russian Monastery, because actually I wanted to go there. Then, we had a safe 4 hours walk through the mountain pathways surrounded by a wild nature, we passed by a Sketes where saint Siluan of Athos  lived (1866 – 1938, Russian new-times saint).

saint_Siluan_Athonski_holy_orthodox_christian-icon

Athos is a very interesting place, because even your stay there for a little time teaches you a lot about the spiritual reality and just being there improves seriously ones spiritual life. Reaching the Russian monastery, I was stunned by the Beauty and size of the monastery, monastic yard is all green and beautiful there is a spring with water in the form of flower in front of monastic doors, the sideview of sea coast and the stones also left a bright mark in my mind.

saint_Great_Marty_Pantheleimon_Holy_mount_Athos_Russian_monastery
st. Panteleimonos monastery is known in whole Athos with its strong rules and ascethism, we asked if it is possible to sleep a night in the monastery but was told we need to do a one day in advance reservation to stay there (which by the way is a good thing because that way the brotherhood is not interferred by monastic guests but prepared to receives them). In the small Church nearby the bell-tower there are holy saint relics of about at least 200 saints!!! We had the Chance to see the Holy relics just to mention few of the Holy Relics of the monastery (the right hand of great martyr Panteleimon, the head of Saint Cosmas and Damian, relics of saint Seraphim of Sarov, head of saint Siluan of Athos, relics of many hermit saints, relics of Saint Basilius the Great, Saint Grigorius and saint John of Crysostom).

As we couldn't sleep in Russian monastery, we were instructed by monk Climent if they don't accept is to go to Xenophontos. So we took the way to Xenophontos which is 3km away about 1 hour near shore walk.

Xenophontos_monastery_holy_mount_Athos
It was on the way to Monastery that I learned Xenophontos's heavenly protector is my saint George ( Georgi / Georgius), I was very happy to learn that because I already felt a bit of regret I still haven't venerated my saint protector on Holy Mount Athos.
Reaching the monastery we saw on the monastic door a monk going out of the monastery and asked him if we can stay for the night, the monk which we later learned is called Prodromos was very hospitable and accepted and accomodated us. I went to the monastic Church where still there was an Acathist ongoing in glorification of The Holy Mother of God. The saint who founded Xenophontos Μονή Ξενοφώντος is saint Xenophont. The monastery is very beatiful just like all the rest of Holy Athos monasteries. Monk Prodromos, who was mostly kindly to us give us food even though the monks had already had their dinner earlier as we were in the monastery around 21:00 at noon. Talking about time it is notable to say in Athos, they use Byzantine time which is +3 hours to Greek time, meaning we were in monastery around midnight Byzantine time (as this is early the sun was going to its sunset). Xenophontos is famous with its two miracle making icons of Saint George and The Holy Mother of God, I greatest holy relic kept in monastery is the right hand of saint George. On next day the morning service started in 4 o'clock early in morning before sunrise, we went for service around 5:00 because we couldn't get up at time, the Church bell rings around 03:50 in morning! and then on a couple of times bells at the end of morning service right before holy liturgy and whenever they serve an Acathist. In Summer morning services in holy mount athos start everyday in 04:00 (7 byzantine time) and in 03:00 (08:00) in Winter time. Everyday Holy Liturgy is served in Holy Mount Athos in every monastery and monks have an evening service starting exactly in 17:00. I would skip here to explain the Church atmosphere and the spirituality because this cannot be retold but has to be experienced. The Holy Liturgy ended around 08:00 and the monks rests for about an hour until 09:00 when the monks had an Acathist until 09:30 in the second old Church whose wall paintings dates backs probably as early as 13 or 14 century. After the Acathist, we were invited for a breakfast which was scarce but delicious. During we ete a text was red from the Ancient Paterik (The Living instructions of the Ancient time Abbas hermit saints).
After the breakfast, I had a coffee (in the guest-room) there is a free-coffee machine 🙂

We had chat with few other Greek pilgrims, and one of the Greeks was especially hospitable with us, he brought us and show us the small monastic fabric where all kind of wooden things are produced by few monks and layman (in that number icons are built there monastic chairs – tables, Church wooden ornaments etc.). We were shown by this kind greek the monastic ossuary, the monastic greenhouses, the monastic graveyard. I later learned this Greek has so special attitude to us Bulgarians, because he is architect and he was working in Rila Monastery as architect for a while while still atheist and after that when he came to Greece he believed in God thanks to the prayers of the greatest Bulgarian saint John of Rila.
After Xenophontos last monastery we visited Dochiariou monastery which is honor of Archangel Michael.
Dochiariou_monastery_in_honor_of_Archangel_Michael_Holy_Mount_Athos_Agios_Oros
This monastery most holy relic is the infamous holy icon of The Theotokos SkoroPoslushnica (Quickly Hearing), the icon is called like this because it hears and answers the prayers of whoever prays in a very quickly manner.
Dohiar-monastery-Sveta_Bogorodica_SkoroPoslushnica_Holy_Mount_Athos

The monks in this monastery was very active, we saw some preparing wine from grapes, others doing some construction work, the monastic icon was locked in a special room in a small chapel in front of the monastic Church which was also locked, so by God's grace we asked a monk to open for us. The monk who keeps the key of the icon gave the key to a small 10 years old kid which unlocked for us and we prayed in front of the Most Holy Virgin. The grace this holy icon emits is just amazing the love and piece you feel is unsaid, I think one can feel that even by seeing the icon here in that post. A small note to make here is the pictures I've put in this post are not mine but are from the Internet and I do not hold copyright for them, thanks to whoever made the pictuers and I hope they were made with a blessing.
If I'm not mistaken Dochiariou is famous with that due to the prayers to the Archangel Michael (a warrior Angel), the Archangel drive back the invasion of the Arabs to Athos, there is also an icon in front of monastery showing this scene. It was impressive that in this monastery, there were a lot of kids helping the monks I saw at least 5 kids. I got the impression it is like a monastic tradition that kids are welcomed and help there since a long time.
Finally after spending some 2 graceful hours in Dochiariou and walking through and seeing the interesting and beatiful monastic walls and buildings architecture, flowers etc. we left off and waited for the ship Ourenopolis to come to monastic port. The ship came take us and after two more stops on Zographou port and Hilandar Serbian Monastery it is a curious fact that Hilandar used to inhabited with Bulgarian abbot and Bulgarian monks for about 80 years.
Hilandar_Serbian_Monastery_port_Serbian_port

In the ship we had a small chat with monk Makarious which is a monk in the Zographou St. Martyr George Bulgarian Monastery. We were sent by  the Holy Mother of God bt few dolphins sailing after the boat and doing water  jumps in grace and joy.
Love for Holy Mount Athos is strongly into my heart into even this moment when I write this article. Actually to be honest I was unwilling to leave this piece of earthly paradise. I yearn to be there again soon when the Mother of God Holy Virgin Mary lets me to.

Bulgaria Top outsource destination – 5th in the World and 2nd in Europe in list of best countries to outsource business to

Thursday, December 19th, 2013

 

why outsource in bulgaria bulgaria 5th in world and second in europe in outsourcing1

I was stunned today to find out my countryland Bulgaria is 2nd in Europe and 5th in the world in terms of most attractive outsourcing destination according to BTA (Bulgarian News Agency).
Bulgaria is ordering 5th after, India, Indonesia, Estonia and Singapore. The ranking of most attractive destination is based on factors;

  • General Competitiveness of Labor cost Worldwide
  • Eligibility of Workhand
  • Multilingual English speaking population (mainly young people)
  • Expertised highly educated people
  • Very Low Taxes (if compared to "developed" European countries)
  • Decreased transportation costs (produc transportation to Europe is generally cheap)
  • Internet bandwidth speed and high bandwidth connectiveness to worldwide Trade Markets

All this opens a big opportunity for economy development and inflush of fresh-money from outsourced jobs. Due to higher and European standard level of education in Bulgaria, the workhand pool in Bulgaria is usually more knowledgeable and better in quality if compared to rest of 3rd world countries India, Indonesia, Sinagopore etc. Bulgaria has generally good infrastructure and offers easy transportation of people and resources, something not so well developed yet in lets say India or Indonesia. Therefore opportunities for further development in Bulgaria as a leading outsource center in Europe are immerse in the coming 10 years. So far big companies who already realized the great Bulgaria potential like Comverse, HP, IBM etc. started actively hire people in Bulgaria and outsource their businesses but this mainly happens in Sofia.

bulgaria top business destionation for outsourcing 5th in world and 2nd in europe for outsourcing

The trend in long run however is that European leading companies start outsource in smaller cities and towns as well. Right now most prepared personal ready for outsourcing in Bulgaria is in field of Information Technologies, Electronics, Marketing, Transportation Equipment, Business Management, Chemical Industry, Food & Bevarage and Logistics. General outsourcing trend is more and more people working in not high qualitified labor to enter the market of out-sourcing. There are plenty of companies already in Bulgaria involved in textile (clothes) industry offering their cheap and high quality workhand to large external multinational companies like Zara, H & M , Versace etc.

Currently Bulgaria is considered the poorest countries in the European Union with the shocking minimal wage of 310 leva about (155 EUR) and avarage monthly sallary of 812 leva (406 EUR) monthly. The cheapness of Bulgaria is still unidentified gold field ignored by many Western Multinational companies. Outsourcing in Bulgaria has great advantages for European Countries based companies in terms of product logistics as product transportation cost and taxation within the European Union are very cheap if compared to rest of top non-EU outsourcing countries. Due to оbviously advantegous conditions in Bulgaria there are plenty of companies in Bulgaria already specialised in auditing outsourcing business risks and planning steps a company could partake to outsource its business in BG. Current Bulgarian government is making further attempts to relieve country's conditions to attract new business investors by 'Simplifying country's business registration and operations administration requirements and fostering better business environment' as said recently by second minister of economics Krasin Dimitrov in recent business forum "Opportunities and Challanges in Business Process Outsourcing (BPO) and Shared Service Centers (SSC) in Bulgaria"

Linux: How to change recursively directory permissions to executable (+x) flag

Monday, September 2nd, 2013

change recursively permissions of directories and subdirectories Linux and Unix with find command
I had to copy large directory from one Linux server to windows host via SFTP proto (with WinSCP). However some of directories to be copied lacked executable flag, thus WinSCP failed to list and copy them.

Therefore I needed way to set recursively, all sub-directories under directory /mirror (located on Linux server) to +x executable flag.

There are two ways to do that one is directly through find cmd, second by using find with xargs
Here is how to do it with find:

# find /mirror -type d -exec chmod 755 {} + Same done with find + xargs:

# find /path/to/base/dir -type d -print0 | xargs -0 chmod 755
To change permissions only to all files under /mirror server directory with find

# find /path/to/base/dir -type f -exec chmod 644 {} +

Same done with find + xargs:
# find /path/to/base/dir -type f -print0 | xargs -0 chmod 644

Also, tiny shell script that recursively changes directories permissions (autochmod_directories.sh) is here

Script to Automatically change current MySQL server in wp-config.php to another MySQL host to minimize WordPress and Joomla downtimes

Friday, July 20th, 2012

I'm running a two servers for a couple of home hosted websites. One of the servers is serving as Apache host1 and has configured MySQL running on it and the second is used just for database host2 – (has another MySQL configured on it).
The MySQL servers are not configured to run as a MySQL MASTER and MySQL SLAVE (no mysql replication), however periodically (daily), I have a tiny shell script that is actualizing the data from the active SQL host2 server to host1.

Sometimes due to electricity problems or CPU overheats the active MySQL host at host2 gets stoned and stops working causing the 2 WordPress based websites and One joomla site inaccessible.
Until I manually get to the machine and restart host2 the 3 sites are down from the net and as you can imagine this has a very negative impact on the existing website indexing (PageRank) in Google.

When I'm at home, this is not a problem as I have physical access to the servers and if somethings gets messy I fix it quickly. The problem comes, whether I'm travelling or in another city far from home and there is no-one at home to give the hanged host hard reboot ….

Lately the problems with hang-ups of host2 happaned 3 times or so for 2 weeks, as a result the websites were inaccessible for hours and since there is nobody to reboot the server for hours; the websites keep hanging until the DB host is restarted ;;;;

To work-around this I came with the idea to write a tiny shell script to check if host2 is ping-able in order to assure the Database host is not down and then if script determines host2 (mysql) host is down it changes wp-config.php (set to use host2) to a wp-config.php (which I have beforehand configured to use) host1.

Using the script is a temporary solution, since I have to actually find the real hang-up causing troubles, but at least it saves me long downtimes. Here is a download link to the script I called change_blog_db.sh .
I've configured the script to be run on the Apache node (host1) via a crontab calling the script every 10 minutes, here is the crontab:
 

*/10 * * * * /usr/sbin/change_blog_db.sh > /dev/null 2>&1

The script is written in a way so if it determins host2 is reachable a copy of wp-config.php and Joomla's configuration.php tuned to use host2 is copied over the file config originals. In order to use the script one has to configured the head variables script section, e.g.:

host_to_ping='192.168.0.2';
blog_dir='/var/www/blog';
blog_dir2='/var/www/blog1';blog_dir3='/var/www/joomla';
notify_mail='hipo@pc-freak.net';
wp_config_orig='wp-config.php';
wp_config_localhost='wp-config-localhost.php';
wp_config_other_host='wp-config-192.168.0.2.php';
joomla_config_orig='configuration.php';
joomla_config_other_host='configuration-192.168.0.2.php';

You will have to manually prepare;;;

wp-config-localhost.php, wp-config-192.168.0.2.php ,configuration-192.168.0.2.php, wp-config-localhost.php to be existing files configured to with proper host1 and host2 IP addresses.
Hope the script will be useful to others, experiencing database downtimes with WordPress or Joomla installs.
 

Tracking I/O hard disk server bottlenecks with iostat on GNU / Linux and FreeBSD

Tuesday, March 27th, 2012

Hard disk overhead tracking on Linux and FreeBSD with iostat

I've earlier wrote an article How to find which processes are causing hard disk i/o overhead on Linux there I explained very rawly few tools which can be used to benchmark hard disk read / write operations. My prior article accent was on iotop and dstat and it just mentioned of iostat. Therefore I've wrote this short article in attempt to explain a bit more thoroughfully on how iostat can be used to track problems with excessive server I/O read/writes.

Here is the command man page description;
iostatReport Central Processing Unit (CPU) statistics and input/output statistics for devices, partitions and network filesystems

I will further proceed with few words on how iostat can be installed on various Linux distros, then point at few most common scenarious of use and a short explanation on the meaning of each of the command outputs.

1. Installing iostat on Linux

iostat is a swiss army knife of finding a server hard disk bottlenecks. Though it is a must have tool in the admin outfut, most of Linux distributions will not have iostat installed by default.
To have it on your server, you will need to install sysstat package:

a) On Debian / Ubuntu and other Debian GNU / Linux derivatives to install sysstat:

debian:~# apt-get --yes install sysstat

b) On Fedora, CentOS, RHEL etc. install is with yum:

[root@centos ~]# yum -y install sysstat

c) On Slackware Linux sysstat package which contains iostat is installed by default. 

d) In FreeBSD, there is no need for installation of any external package as iostat is part of the BSD world (bundle commands).
I should mention bsd iostat and Linux's iostat commands are not the same and hence there use to track down hard disk bottlenecks differs a bit, however the general logic of use is very similar as with most tools in BSD and Linux.

2. Checking a server hard disk for i/o disk bottlenecks on G* / Linux

Once having the sysstat installed on G* / Linux systems, the iostat command will be added in /usr/bin/iostat
a) To check what is the hard disk read writes per second (in megabytes) use:

debian:~# /usr/bin/iostat -m
Linux 2.6.32-5-amd64 (debian) 03/27/2012 _x86_64_ (8 CPU)
avg-cpu: %user %nice %system %iowait %steal %idle
15.34 0.36 2.76 2.66 0.00 78.88
Device: tps MB_read/s MB_wrtn/s MB_read MB_wrtn
sda 63.89 0.48 8.20 6730223 115541235
sdb 64.12 0.44 8.23 6244683 116039483
md0 2118.70 0.22 8.19 3041643 115528074

In the above output the server, where I issue the command is using sda and sdb configured in software RAID 1 array visible in the output as (md0)

The output of iostat should already be easily to read, for anyone who didn't used the tool here is a few lines explanation of the columns:

The %user 15.34 meaning is that 15.34 out of 100% possible i/o load is generad by system level read/write operations.
%nice – >Show the percentage of CPU utilization that occurred while executing at the user level with nice priority.
%iowait – just like the top command idle it shows the idle time when the system didn't have an outstanding disk I/O requests.
%steal – show percentage in time spent in time wait of CPU or virtual CPUs to service another virtual processor (high numbers of disk is sure sign for i/o problem).
%idle – almost the same as meaning to %iowait
tps – HDD transactions per second
MB_read/s (column) – shows the actual Disk reads in Mbytes at the time of issuing iostat
MB_wrtn/s – displays the writes p/s at the time of iostat invocation
MB_read – shows the hard disk read operations in megabytes, since the server boot 'till moment of invocation of iostat
MB_wrtn – gives the number of Megabytes written on HDD since the last server boot filesystem mount

The reason why the Read / Write values for sda and sdb are similar in this example output is because my disks are configured in software RAID1 (mirror)

The above iostat output reveals in my specific case the server is experiencing mostly Disk writes (observable in the high MB_wrtn/s 8.19 md0 in the above sample output).

It also reveals, the I/O reads experienced on that server hard disk are mostly generated as a system (user level load) – see (%user 15.34 and md0 2118.70).

For all those not familiar with system also called user / level load, this is all kind of load which is generated by running programs on the server – (any kind of load not generated by the Linux kernel or loaded kernel modules).

b) To periodically keep an eye on HDD i/o operations with iostat, there are two ways:

– Use watch in conjunction with iostat;

[root@centos ~]# watch "/usr/bin/iostat -m"
Every 2.0s: iostat -m Tue Mar 27 11:00:30 2012
Linux 2.6.32-5-amd64 (centos) 03/27/2012 _x86_64_ (8 CPU)
avg-cpu: %user %nice %system %iowait %steal %idle
15.34 0.36 2.76 2.66 0.00 78.88
Device: tps MB_read/s MB_wrtn/s MB_read MB_wrtn
sda 63.89 0.48 8.20 6730255 115574152
sdb 64.12 0.44 8.23 6244718 116072400
md0 2118.94 0.22 8.20 3041710 115560990
Device: tps MB_read/s MB_wrtn/s MB_read MB_wrtn
sda 55.00 0.01 25.75 0 51
sdb 52.50 0.00 24.75 0 49
md0 34661.00 0.01 135.38 0 270

Even though watch use and -d might appear like identical, they're not watch does refresh the screen, executing instruction similar to the clear command which clears screen on every 2 seconds, so the output looks like the top command refresh, while passing the -d 2 will output the iostat command output on every 2 secs in a row so all the data is visualized on the screen. Hence -d 2 in cases, where more thorough debug is necessery is better. However for a quick routine view watch + iostat is great too.

c) Outputting extra information for HDD input/output operations;

root@debian:~# iostat -x
Linux 2.6.32-5-amd64 (debian) 03/27/2012 _x86_64_ (8 CPU)
avg-cpu: %user %nice %system %iowait %steal %idle
15.34 0.36 2.76 2.66 0.00 78.88
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz await svctm %util
sda 4.22 2047.33 12.01 51.88 977.44 16785.96 278.03 0.28 4.35 3.87 24.72
sdb 3.80 2047.61 11.97 52.15 906.93 16858.32 277.05 0.03 5.25 3.87 24.84
md0 0.00 0.00 20.72 2098.28 441.75 16784.05 8.13 0.00 0.00 0.00 0.00

This command will output extended useful Hard Disk info like;
r/s – number of read requests issued per second
w/s – number of write requests issued per second
rsec/s – numbers of sector reads per second
b>wsec/s – number of sectors wrote per second
etc. etc.

Most of ppl will never need to use this, but it is good to know it exists.

3. Tracking read / write (i/o) hard disk bottlenecks on FreeBSD

BSD's iostat is a bit different in terms of output and arguments.

a) Here is most basic use:

freebsd# /usr/sbin/iostat
tty ad0 cpu
tin tout KB/t tps MB/s us ni sy in id
1 561 45.18 44 1.95 14 0 5 0 82

b) Periodic watch of hdd i/o operations;

freebsd# iostat -c 10
tty ad0 cpu
tin tout KB/t tps MB/s us ni sy in id
1 562 45.19 44 1.95 14 0 5 0 82
0 307 51.96 113 5.73 44 0 24 0 32
0 234 58.12 98 5.56 16 0 7 0 77
0 43 0.00 0 0.00 1 0 0 0 99
0 485 0.00 0 0.00 2 0 0 0 98
0 43 0.00 0 0.00 0 0 1 0 99
0 43 0.00 0 0.00 0 0 0 0 100
...

As you see in the output, there is information like in the columns tty, tin, tout which is a bit hard to comprehend.
Thanksfully the tool has an option to print out only more essential i/o information:

freebsd# iostat -d -c 10
ad0
KB/t tps MB/s
45.19 44 1.95
58.12 97 5.52
54.81 108 5.78
0.00 0 0.00
0.00 0 0.00
0.00 0 0.00
20.48 25 0.50

The output info is quite self-explanatory.

Displaying a number of iostat values for hard disk reads can be also achieved by omitting -c option with:

freebsd# iostat -d 1 10
...

Tracking a specific hard disk partiotion with iostat is done with:

freebsd# iostat -n /dev/ad0s1a
tty cpu
tin tout us ni sy in id
1 577 14 0 5 0 81
c) Getting Hard disk read/write information with gstat

gstat is a FreeBSD tool to print statistics for GEOM disks. Its default behaviour is to refresh the screen in a similar fashion like top command, so its great for people who would like to periodically check all attached system hard disk and storage devices:

freebsd# gstat
dT: 1.002s w: 1.000s
L(q) ops/s r/s kBps ms/r w/s kBps ms/w %busy Name
0 10 0 0 0.0 10 260 2.6 15.6| ad0
0 10 0 0 0.0 10 260 2.6 11.4| ad0s1
0 10 0 0 0.0 10 260 2.8 12.5| ad0s1a
0 0 0 0 0.0 0 0 0.0 20.0| ad0s1b
0 0 0 0 0.0 0 0 0.0 0.0| ad0s1c
0 0 0 0 0.0 0 0 0.0 0.0| ad0s1d
0 0 0 0 0.0 0 0 0.0 0.0| ad0s1e
0 0 0 0 0.0 0 0 0.0 0.0| acd0

It even has colors if your tty supports colors 🙂

Another useful tool in debugging the culprit of excessive hdd I/O operations is procstat command:

Here is a sample procstat run to track (httpd) one of my processes imposing i/o hdd load:

freebsd# procstat -f 50404
PID COMM FD T V FLAGS REF OFFSET PRO NAME
50404 httpd cwd v d -------- - - - /
50404 httpd root v d -------- - - - /
50404 httpd 0 v c r------- 56 0 - -
50404 httpd 1 v c -w------ 56 0 - -
50404 httpd 2 v r -wa----- 56 75581 - /var/log/httpd-error.log
50404 httpd 3 s - rw------ 105 0 TCP ::.80 ::.0
50404 httpd 4 p - rw---n-- 56 0 - -
50404 httpd 5 p - rw------ 56 0 - -
50404 httpd 6 v r -wa----- 56 25161132 - /var/log/httpd-access.log
50404 httpd 7 v r rw------ 56 0 - /tmp/apr8QUOUW
50404 httpd 8 v r -w------ 56 0 - /var/run/accept.lock.49588
50404 httpd 9 v r -w------ 1 0 - /var/run/accept.lock.49588
50404 httpd 10 v r -w------ 1 0 - /tmp/apr8QUOUW
50404 httpd 11 ? - -------- 2 0 - -

Btw fstat is sometimes helpful in identifying the number of open files and trying to estimate which ones are putting the hdd load.
Hope this info helps someone. If you know better ways to track hdd excessive loads on Linux / BSD pls share 'em pls.
 

How to upgrade single package with their dependencies on Debian and Ubuntu Linux

Friday, March 16th, 2012

Debian GNU / Linux apt-get upgrade a package selection of a whole bunch of packages ready to upgrade apt artistic logo

Are you a Debian System Administrator and you recently run apt-get upgrade && apt-get upgrade finding out there are plenty of new packagesfor upgrade? Do you need only a pre-selected number of packages to upgrade with apt?
I run apt-get update && apt-get upgrade on one of our company Debian servers, just to see there are a number of packages to be upgraded among which there was some I didn't wanted to upgrade. Here is a little paste output from apt-get upgrade:

debian:~# apt-get update && apt-get upgrade
Hit http://security.debian.org squeeze/updates Release.gpg
...
Hit http://security.debian.org squeeze/updates/main amd64 Packages
Fetched 128 kB in 0s (441 kB/s)
Reading package lists... Done
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be upgraded:
at imagemagick libdbd-pg-perl libfreetype6 libmagickcore3 libmagickcore3-extra libmagickwand3 libmysqlclient16 mysql-client
mysql-client-5.1 mysql-common mysql-server mysql-server-5.1 mysql-server-core-5.1
Do you want to continue [Y/n]
14 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

From first sight it seems logical to issue apt-get upgrade packagename to upgrade only single package with its package dependencies, instead of the whole group the above packs. However doing:
apt-get upgrade imagemagick will still try to upgrade all the packages instead of just imagemagick and its dependency package deb libmagickcore3

debian:~# apt-get upgrade imagemagick
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be upgraded:
at imagemagick libdbd-pg-perl libfreetype6 libmagickcore3 libmagickcore3-extra libmagickwand3 libmysqlclient16 mysql-client
mysql-client-5.1 mysql-common mysql-server mysql-server-5.1 mysql-server-core-5.1
14 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Do you want to continue [Y/n]

Doing all package,upgrade is not a good idea in my case, since upgrading mysql-server will require a MySQL server restart (something which we cannot afford to do right now) on this production server.
MySQL server restart during upgrade is never a good idea especially on productive busy (heavy loaded) SQL servers.
A restart of the MySQL server serving thousands of requests per second could lead often to crashed tables and hence temporary server downtime etc.

Still it is a good idea to upgrade the rest of packages with their newer versions. For exmpl. to upgrade; imagemagick, at , libfreetype6 and so on.

In order to upgrade only this 3 ones and their respective package dependencies, issue:

debian:~# apt-get --yes install imagemagick at libfreetype6

Repeat the apt-get install command with passing all the single package name you want to be upgraded and voila you're done :).
Be sure the apt-get install packagename upgrade doesn't require also upgrade of myssql-server, mysql-client, mysql-common or mysql-server-core-5.1 or any of the package name you want to preserve from upgrading.

Creator of Linux kernel Linus Torvalds with a biblical name, Pope Linus second Pope of Rome

Thursday, February 16th, 2012

Western Roman Catholic Pope Linus picture, Pope after Saint apostle Peter

Linus's name is encountered once in the Scriptures (The Holy Bible) in the second book part of the New Testament scriptures:

I really like King James English version of the bible, here is the text extracted from there, mentioning Linus's name:

2 Timothy 4:21
Doe thy diligence to come before winter. Eubulus greeteth thee,
and Pudens, and Linus, and Claudia, and all the brethren. (From KJV 1611 Translation)

Here is a modernized version of the same verse taken from the New American Standard Bible Version (1995):

2 Timothy 4:21
Make every effort to come before winter. Eubulus greets you,
also Pudens and Linus and Claudia and all the brethren.

- New American Standard Version (1995)

Other curious fact maybe, even uknown to Linus Torvalds himself is Saint Linus used to be the first bishop of Rome, after the Apostles bishopship.
This makes Saint Linus the second in place Roman Catholic Pope after Saint Peter in early Western Church. There are some early sources which says Pope Clement I was the second pope of Rome, however probably this sources are erroneous, since some very important early written sources like the Apostolic Constitutions states Linus was the first bishop of Rome and was ordained by St. Paul. The same documents says Pope Linus was succeeded by Pope Clement – ordained by saint Peter.

Below's paste is taken directly from BibleGateway.com cofirming about Pope Linus being the sacond Roman Catholic Pope:

Linus
(a net), a Christian at Rome, known to St. Paul and to
Timothy, (2 Timothy 4:21) who was the first bishop of Rome after the apostles. (A.D. 64.)

Something Pope Linus is known with is, to have issued a church decree that woman should cover their heads in church.This ancient church tradition is still observed more or less in the Orthodox Church. It is not known much about how Saint Pope ruled the early Western Church but since the western and eastern Church used to be in communion in these early days, this means the nowdays Roman Catholic saint Linus is probably a saint in the Eastern Orthodox Church as well.
According to some unprovable written sources Pope Linus later suffered martyrdom and was buried in Vatican Hill next to saint apostle Peter.

St. Linus according to Church tradition passed away in the 1st securury A.D.
Below's paste is taken directly from BibleGateway.com a multilingual website location for reading the bible

Linus
(a net), a Christian at Rome, known to St. Paul and to
Timothy, (2 Timothy 4:21) who was the first bishop of Rome after the apostles. (A.D. 64.)

I've merged a picture of how saint Linus used to look with one of the pictures of Linus Torvalds. It's rather funny they actually look alike 😉 🙂 🙂

Saint Linus and Linus Torvalds creator of GNU Linux kernel

The creator of GNU/Linux kernel Linus Torvalds might not be a saint in Christian sense, but his deed is definitely saintly as he initiated the creation of the Linux kernel and decided to share its source and publish it under GPL (General Public License).
The phenomenon of GNU / Linux Free Operating System existent today and specific type of development is definitely a miracle. The general philosophy of sharing with neighbor your software is also very close to the Christian philosophy of sharing. Actually too many of the ideas of the free software and "open source" movements resemble purely Christian ideas.

The software sharing philosophy has become a reality thanks to Richard Stallman and his GNU Project, however the existence of GNU / Linux as a complete operating system become reality thanks to the Linus torvalds kernel efforts which is known under the code name Linux. Talking about names, maybe not much will know, that Linux kernel used to have a different name in the early stage of its development, its first code name was FreaX