Posts Tagged ‘bit’

luckyBackup Linux GUI back-up and synchronization tool

Wednesday, May 14th, 2014

luckybackup_best-linux-graphical-tool-for-backup_linux_gui-defacto-standard-tool
If you're a using GNU / Linux  for Desktop and you're already tired of creating backups by your own hacks using terminal and you want to make your life a little bit more easier and easily automate your important files back up through GUI program take a look at luckyBackup.

Luckibackup is a GUI frontend to the infamous rsync command line backup  tool. Luckibackup is available as a package in almost all modern Linux distributions its very easy to setup and can save you a lot of time especially if you have to manage a number of your Workplace Desktop Office Linux based computers.
Luckibackup is an absolute must have program for Linux Desktop start-up users. If you're migrating from Microsoft Windows realm and you're used to BackupPC, Luckibackup is probably the defacto Linux BackupPC substitute.

The sad news for Linux GNOME Desktop users is luckibackup is written in QT and it using it will load up a bit your notebook.
It is not installed by default so once a new Linux Desktop is installed you will have to install it manually on Debian and Ubuntu based Linux-es to install Luckibackup apt-get it.

debian:~# apt-get install --yes luckibackup
...

On Fedora and CentOS Linux install LuckiBackup via yum rpm package manager

[root@centos :~]# yum -y install luckibackup
.

Luckibackup is also ported for OpenSuSE Slackware, Gentoo, Mandriva and ArchLinux. In 2009 Luckibackup won the prize of Sourceforge Community Choice Awards for "best new project".

luckyBackup copies over only the changes you've made to the source directory and nothing more.
You will be surprised when your huge source is backed up in seconds (after the first backup).

Whatever changes you make to the source including adding, moving, deleting, modifying files / directories etc, will have the same effect to the destination.
Owner, group, time stamps, links and permissions of files are preserved (unless stated otherwise).

Luckibackup creates different multiple backup "snapshots".Each snapshot is an image of the source data that refers to a specific date-time.
Easy rollback to any of the snapshots is possible. Besides that luckibackup support Sync (just like rsync) od any directories keeping the files that were most recently modified on both of them.

Useful if you modify files on more than one PCs (using a flash-drive and don't want to bother remembering what did you use last. Luckibackup is capable of excluding certain files or directories from backupsExclude any file, folder or pattern from backup transfer.

After each operation a logfile is created in your home folder. You can have a look at it any time you want.

luckyBackup can run in command line if you wish not to use the gui, but you have to first create the profile that is going to be executed.
Type "luckybackup –help" at a terminal to see usage and supported options.
There is also TrayNotification – Visual feedback at the tray area informs you about what is going on.
 

 

 

Free Software Remote Desktop for Mac OS X – CoRD simple RDP remote desktop for Mac

Monday, August 4th, 2014

free-software-remote-desktop-client-to-connect-to-windows-rdp-for-MAC-OSX-CoRD-logo
If you're admin using Mac OS X Desktop or casually on a place where you have no access to a Windows / Linux PC (only have access to your girlfriend of wife MAC OS notebook) and you need to administrate Windows hosts remotely out of office hours (from home), you will need some remote desktop client for Mac OS X.

I was just recently in that situation as we were guests to a friend in Shabla village nearby Sea coast and the only near PC, I had was my wife's MacBook Air running Mac OS X.

I looked in google to see if there is some default RDP (remote desktop protocol) client like MS Windows remote desktop command line client, i.e. (yes there is way to invoke remote desktop on Windows from command line 🙂 ):

mstsc [] [/v:] [/admin] [/f[ullscreen]] [/w:] [/h:] [/public] | [/span] [/edit “connection file”] [/migrate] [/?]

remote-desktop-run-from-windows-command-line-rdp-command-line-ms-windows-screenshot

I also looked if there is Mac OS X version ofLinux's rdesktop (command) or RDP Linux GUI remmina 
however  I didn't find direct port of em, neither there is default integrated RDP Client on Mac OS X, thus after researching a bit further I tried installing the first returned result in Google which was leading to Apple's AppStore – Apple – Remote Desktop.

I tried installing the clicking it but it seemed my wife, didn't know her AppStore as it was her cousin which earlier configured her Mac OS PC on laptop initial install time. Contacting her cousin to ask for the password was a time eater as well as I was lazy to create new appstore account (plus I always prefer to use free software alternative when possible) …  did a quick search in Google whether there is some Open Source / Free Software Remote Desktop Client for Mac OS X and I found CoRD – Mac OS X remote desktop client for Microsoft Windows computers using the RDP protocol.
CoRD was originally ported from UNIX program rdesktop.
To have CoRD working you will need as a minimum requirement Mac OS X version 10.5 or later.

CoRD-Free-Software-Open_Source-remote-desktop-client-for-mac-osx
Here is CoRD's description quoted from its SourceForge website:

CoRD: Simple RDP Remote Desktop

Macs interact well with Windows, and with CoRD the experience is a bit smoother. Great for working on the office terminal server, administrating servers or any other time you'd like your PC to be a bit closer without leaving your Mac. CoRD allows you to view each session in its own window, or save space with all sessions in one window. Scale session windows to whatever size fits you—the screen is resized automatically. Enter full screen mode and feel like you're actually at the computer. The clipboard is automatically synchronized between CoRD and the server. For system administrators, CoRD creates a simpler workflow by allowing you to save server information, then quickly connect to that server by using HotKeys or the server drawer. This makes quickly connecting to a specific server easy, even when managing many servers.

Installing CoRD is pretty, straight forward, just download unzip the archive and run it:

cord-remote-desktop-free-software-client-mac-osx-install-warning-screenshot

cord-remote-desktop-free-software-client-mac-osx-install-warning-screenshot.png

cord-open-source-rdp-client-mac-osx

To later run Cord either look it up in Finder or if you prefer like me to access it from command line, you will need to export CoRD PATH in Mac Terminal $PATH variable:

add-cord-remote-desktop-lcient-command-to-default-path-mac-osx

As you see in above screenshot to find out which directory is CoRD located, I've grepped through the processes with

ps ax | grep cord

and then added it to PATH with:

export PATH=$PATH:/Users/svetlana/Application/CoRD.app/Contents/MacOS/

Remembering CoRD to type it each time is annoying, thus to make CorD be accessed like on Linux with rdesktop (easy to remember command), I've used alias:

alias rdesktop='CoRD'

To make the new PATH and alias permanent for the user, I've added it to (/Users/svetlana) – ~/.profile

echo "export PATH=$PATH:/Users/svetlana/Application/CoRD.app/Contents/MacOS/" >> ~/.profile
echo "alias rdesktop='CoRD'" >> ~/.profile


Current CoRD MacOSX version is 0.5.7, for personal ease if I need to install it in future time, I've made my own mirror of cord here.

There is also Microsoft Remote Desktop client for Mac OS 2.1.1 however this version was released back in 2011 and is outdated (not supported for use with Mac OS X v10.7 (Lion) or later).

How to change Outlook Signature – modify and delete Microsoft Outlook email signatures

Monday, February 17th, 2014

I'm using Mozilla Thunderbird over the last 5 years in my life. Just now in my new job place in Hewlett Packard, in order to have well functional mail (with exchange server) – I started using Microsoft Outlook.
Logically a little while after I started my work I have to update my Outlook E-mail signature to reflect my contact details (job position title, email, stand-alone / mobile phone, office address etc.). As of moment of writting I'm using Microsoft Outlook 14.0.6123.5001 (32 bit) part of Microsoft Office Professional Plus 2010.

Its a kind of irony that I had to use Microsoft products after all these years trying my best to avoid using Microsoft technologies but heh, this is life … Though this article will be a bit trivial I decided to blog it because already I had to change email signature for a 3rd time over the last 3 months and every now and then after a month time I tend to forget how I did it last time.

Here is how I changed Email Signature in Outlook:

1. Click on "New-Email" (located below File menu)

2. Click on "Insert" (menu tab)

3. Click on "Signature"

microsoft-outlook-pop3-mail-client-change-signature-screenshot

4. Click on "New" button

As you see Outlook is written in very intelligent manner 🙂
It is possible to have more than one signature and change them every now and then (I guess that's made for Schizophrenic people who like changing their signature a couple of times a day accepting different personalities 🙂 🙂 🙂
For already existing signatures just edit the old one – click on Edit Signature

microsoft-outlook-exchange-how-to-change-email-signature
http://www.clarion.edu/273437/
 

  • Rename Signatures:

        Perform steps 1-4 in ('Create Signatures') except click "Rename button instead of 'New' and begin typing new name.

  • Delete Signatures:

        Perform steps 1-4 in ('Create Signatures') except click 'Delete" button instead of 'New'.

  • Modify Signatures:

        Highlight signature name you wish to modify under

  1. "Select Signature to Edit" then modify signature.

  2. Click "Save" button to save any signature changes made.

How to test if imap and pop mail server service is working with Telnet cmd

Monday, August 8th, 2011

test-if-imap-pop3-is-working-with-telnet-command-logo-imap
I’ve recently built new mail qmail server with vpopmail to serve pop3 connectins and courierimap and courierimaps to take care for IMAP IMAPS.

I further used telnet to test if the Linux server pop3 service on (110) and imap on (143) worked fine, straight after the completed qmail install.
Here is how to test mail server with vpopmail listening for connections on pop3 port :

debian:~# telnet mail.mymailserver.com 110
Trying 111.222.333.444...
Connected to mail.mymailserver.com.
Escape character is '^]'.
+OK <2813.1312745988@mymailserver.com>
USER hipo@mymailserver.com
+OK
PASS here_goes_my_secret_pass
+OK
LIST
1 309783
2 64053
3 2119
4 64357
5 317893
RETR 1
My first mail content retrieved with RETR commandgoes here ....
quit
+OK
Connection closed by foreign host.

You see I have 5 messages in my mailbox, as you can see I used RETR command to check the content of my mail, this is handy as I can read my mails straight with telnet (if the mail is in plain text), of course it’s a bit more complicated if I have to read encrypted or html mail, though still its easy to write a tiny parser and pipe the content produced by telnet command to lynx or some other text based browser.

Now another sys admin handy tip is the use of telnet to check my mail servers IMAP servers is correctly operating.
Here is how:

debian:~# telnet mail.mymailserver.com 143
Trying 111.222.333.444...
Connected to localhost.
Escape character is '^]'.
* OK [CAPABILITY IMAP4rev1 UIDPLUS CHILDREN NAMESPACE THREAD=ORDEREDSUBJECT THREAD=REFERENCES SORT QUOTA IDLE ACL ACL2=UNION STARTTLS] Courier-IMAP ready. Copyright 1998-2010 Double Precision, Inc. See COPYING for distribution information.
01 LOGIN hipo@mymailserver.com here_goes_my_secret_pass
A OK LOGIN Ok.
02 LIST "" *
* LIST (Unmarked HasNoChildren) "." "INBOX"
02 OK LIST completed
03 SELECT INBOX
* FLAGS (Draft Answered Flagged Deleted Seen Recent)
* OK [PERMANENTFLAGS (* Draft Answered Flagged Deleted Seen)] Limited
* 5 EXISTS
* 5 RECENT
* OK [UIDVALIDITY 1312746907] Ok
* OK [MYRIGHTS "acdilrsw"] ACL
03 OK [READ-WRITE] Ok
04 STATUS INBOX (MESSAGES)
* STATUS "INBOX" (MESSAGES 5)
04 OK STATUS Completed.
05 FETCH 1 ALL
...
06 FETCH 1 BODY
...
07 FETCH 1 ENVELOPE
...
As you can see according to standard to send commands to IMAP server from console after a telnet connection you will have to always include a command line number like 01, 02, 03 .. etc.

Using such a line numbering is not obligitory and also letters like A, B, C could be use still line numbering with numbers is generally a good idea since it’s easier for reading on the screen.

Now line 02 shows you available mailboxes, line 03 SELECT INBOX selects the imap Inbox to be further operated with, 04 STATUS INBOX cmd displays status about current mailboxes in folder.
FETCH 1 ALL instructs the imap server to get list of all IMAP message headers. Next command in line 05 FETCH 1 BODY will display the message body of the first message in list.
The 07 FETCH 1 ENVELOPE will display the mail headers for the 1 message.

Few other IMAP commands which might be helpfun on connection are:

08 FETCH 1 FULL
09 FETCH * FULL

First one would fetch complete content of a message numbered one from the imap server and the second one 09 FETCH * FULL will get all the mail content for all messages located on the remote IMAP server.

The STATUS command aforementioned earlier could take the following list of arguments:

MESSAGES, UNSEEN, RECENT UIDNEXT UIDVALIDITY

These commands are a gold mine for me as a sysadmin as it helps quickly solve problems, hope they would help to somebody out there as well 😉
This way is a way shorter than bothering each time to check, if some customer e-mail account is improperly configured by creating setting up a new account in Thunderbird.
 

Flight to Dubai via Istanbul, my Dubai first impressions and how it feels to be in Arab country

Tuesday, September 13th, 2011

Burj Al Arab and the 360 degree club

On Sunday I had a flight to Dubai – the the United Arab Emirates. The flight's goal is to do some business meetings with potential investors willing to invest in Cadia Holding 's Ofsshore Solutions
I'm employed as IT & Security Specialist and business consultant as well as doing the system administration for the company

The company has already scheduled a business meetings to look for new investors in order to finance the current company offered products and services as well as finance its entrance in the field of biometrics technology for the people to allow people to pay in stores with no need for plastic cards only using a finger partial imprint and a code.

The flight from Sofia to Istanbul was about 1 h and 15 minutes and it went quite smoothly thanks God. It seems Sofia's Airport has changed a lot since my last flight before more than a year and half to Dotmund Germany.
Now Sofia's airport looks way more modern than before, which means Bulgaria is slowly but surely developing it's infrastructure 😉
Sofia Airport long distance view

I used an electronic ticket for the flight which was pre-purchased by Cadia so what, all I had to do on the airport is show a copy of my e-ticket and immediately, they hand me in the fly ticket necessery to check in for the airplane

I should say the flight with Turksih airlines was really enjoyable and the plane we flight with felt much more secure compared to the WizzAir's airus.

It is true the last time I flight with with Wizzair's Airbus it was in January and the weather was quite bad as there was harsh winter with a lot of snow and this might be the reason, why my flight with them felt so shaky.

Anyways before entering the plane I had to go throught the regular security procedures, where I had to remove all kind of metals in bas, pockets etc. and go through a metal scanner, they sa an (anti terourisim) measure, besides that one of the airport security personnel checked me thoroughfully if I dont' bring any kind of objects hidden in m clothes. Generally during the check up with the metal scanner and the check up person I was treated like a criminal …
The Turkish airlines, stewardesses and the service was wonderful and we were given a not too bi but decent lunch (my first time I eat in airplane ;)).

Turkish Airlines Istanbul Airport

The flight as went smoothly and we were in Istanbul about 12:00 at midday, after coming down from the bus we were transferred with a bus from the plane like 1 or 1.5 km to Terminal 2 (the terminal of arrival scheduled).
I travelled with another colleague Krasimir, so we had to check our Tickets in the ticket office and let them issue us the flight ticket based on the e-ticket.
After a quick check of our International travelling passport, so called red passpower we were let to enter the duty free zone full of stores for food, beverages, clothes, parfumes suits cafeterias and everything, tech equipment stores, book stores, turkish ice-cream, duner kebaps and mostly any kind of shops and tings one can think of.

AtaTurk airport Istanbul picture
Ataturk Airport Istanbul

Something that catched my attention was that actually the model of how things are ordered and what they sell, the elevators the materials for building in the airport was very much like how things are in westerm country.
I thought it's a bit sad that everybody, everyone is following a modern design and a specific kind of order of things literally followed after the way things are in the western world. This somehow kills partially the uniqueiness of the country's culture and gives it a taste of the west, where the original culture and traditions the country possess somehow stay in the background.

What made me a bad impression on the airport is the too high prices of food and drinks. I just took one coffee (cappucino) and it costed me the solid sum 5 EUR!!
I was even fooled by the Turkish guy as if converted the coffee price from Turkish currency (Liras), when I calculated the price of the coffee was actually about 4 euro.

I've also spotted that in Turkey they're big nationalists. I've been told by Krasi the airport of Istanbul is called Ataturk and it appears this is the biggest airport in all Turkey. I've noticed in the bookstores we went through many many books even in English talking about the greatness of Turkey's first president Ataturk. There is no doubt that Ataturk has done a lot for internationalizing Turkey, it seems in Turkey they consider Ataturk as a national hero, but in my view it is a bit too much, somehow it looked like Ataturk's great respect in Turkey is comparable to the Chineese's love for Mao Dun ….

We had to spend some 4 hours with Krasi before the time for the second fly comes, so we had 4 hours to take a general look over everything offered in stores on the airport to kill some time

I was quite amazed to see so big variety products and goods on the same place, there was basicly everything one needs except furniture offered ont he airport.
The bookstores English books was reallya lot, where I should say it was quite good that about 40% of the books to be sold, were in English (quite odd especially if I take in consideration that most of the Turkish people I know couldn't speak too good English).

The flight to Dubai was scheduled for 16:45 in the afternoon, so 40 minutes earlier I and Krasi went again through the metal scanner again and thanksfully this time we were not searched for guns and bombs by airport police.
 

Emirates Company Logo

The airplane, we flied with was Boeing 777 – really a beatiful flying machine. We were lucky to travel with two other Bulgarians Nikolay and Gergana, who were flying to Chennai India for some kind of personnel training of some company personnel for the company http://Yazaki.com (an international company producing vehicles components) .

Emirates Boeing 777 nice airplane

Emirates airlines's organization service and convenience was really incredible! Emirates has done a great, job really. I had a lot of fun in the airplane in the flight, as they had every passenger sit with a touch screen display computer with a joystick similar to the ones with playstation.
< img src="https://www.pc-freak.net/images/emirates_passenger_personal_touchscreen_computer_Boening_777.jpg" alt="Emirates Boeng 777 Passenger personal computer touch screen device" />
A Boeng 777 Passenger seat view , the passenger touch screen device mounted on seats back

The little touch screen computer had a number of capabilities the passenger could watch a movie, get information about Dubai play his favourite old fashioned games like Pong, Asteroids, Galaga like, Checss, Arkanoid and like 10 outhers of classic games I know from my childhood.
Besides that the passenger's flight personal computer was equipped was even capable to make satellite phone calls chargable directly from VISA or Mastercard Debit or Credit card. The telephone was embedded with the joystick, so on the back of the control device joystick one has the satellite phone, the phone had the capability to call passengers who are inside the plane. To call another traveller inside the airplane you just need to have the passenger seat number.
As a computer security hobbyist, I've noticed one major problem with the phone calls in between airplane travelling passengers.
By default each sit's phone was sett upped to automatically answer phone calls from other passengers, Which means that if I'm a malicious abuser I can easily just call random people in the airplane and do social engineering pretending to be the plane Commander, stewardess or any other personal from the plane crew 😉
On the other hand calling random people, by getting advantage of how the system "hole", could easily give you the opportunity to make yourself random friends or share contacts with people from around the world 😉

Another handy thing about the onboard touch screen computer, I've noticed is the possibility to listen music from a list of a huge database with music. Also a huge database like (300+) movies ready to be seen was available, as well as some serials and some popular podcasts as well as the device even supported e-mail check and some basic internet functionalities (which unfortunately had to be used only after payment with a debit or credit card :|).

Emirates Passenger personal computer touch screen incredible device
Emirates / Skywards Passenger personal computer touch screen device

In the middle of the 4 hours and 15 minutes flight, we were handed in a good portions of dinner meals, which obviously was properly selected to be suitable to be easily digestable and vitaminous food. Also alcohol arabian Coca-Cola, Coffe and tea was offered.

Before the meals was handed in by the few stewards in the airplane, each passenger was handed with a (hot) towel, to carefully clear his hand or face!

Many of the Arabs used the towels to wipe their face sweat, where europeans tended to clean up their hands (probably shows something about the each about arabian and european habits and culture?).

Dubai side view from the airplane before the landing was really amazing, I've never seen so much light concentrated on one place never ever in my life, landing went pretty smoothly thanks God, though it felt a bit more risky than the landing done by the Turkish airlines, pilots.
Maybe there is difference in the landing because it was done during night time and probably landings in night time a way difficult task for the pilot.

Just like in Istanbul, after going down from the plane, via the plane step-ladder we were transported to the Airport with Buses (I was told by Krasimir that, the bus transportation is used becuase, it's a way cheaper than using the equipment for "hot tie" to connect the plane with the terminal via "tuble".
Also maybe its difficult in terms of parking the airplane as the airplane has to drive like 1.5, 2km and park this is an astonishing amount of petrol plane fuel 😉

Anyways just to sum-up my first flight with Emirates/Skywards it was more than enjoyable and nice, everything from the plane take off through the overall airplane experience to landing felt like a veery well crafted, organized and stricktly managed process. It felt like verything happening is perfectly tuned, again really nice feeling 😉
Interestingly inside th airplaine they had a stewardesses which were either Malaysian or Indonesian. The reason for tat was probably because Arabs are crazy about chineese and the variations of yellow races as I've heard from Baky (an Egyptian) as well as from some few Egyptian colleagues I had.

After we went down from the bus transporting us to Dubai's terminal arrival terminal 3, which I think is the only terminal dedicated for visitors in Dubai, we couldn't freely anter Dubai, but we were supposed to go through a biometric security measure the airport here implemented few years ago an Eye Scan .

Dubai Airport Arrival in United Arab Emirates - Airport Terminal 3

The organization on the airport and the information that we were supposed to have the eye scan in order to enter Anyways after some questioning near few of the airport desks and offices, we found or way to the device place where the eye scans took place.

The eye scan process is quick and not that scary as it sounds, they ask you sit on a chair cover left eye, then cover right eye and open the eye widely to make a picture of the iris, then based on some algorthim for interpreting the data and through a complex IT develoepd system a check is done against a database of well known criminals and if no match is found you're given a seal which lets you in Dubai.

The only concern, I have is once they took your eyescan they have this information stored so basicly they have your biometric data and if the information is stolen or send to third parties you can never know, but that's how it goes you know it's life, if you don't do the eye scan you can't go in.
You don't have the option to just choose if you want to have the eye scan or not … My company boss tried to cheat them and walk through inside Dubai without ahe eye scan as he said he went through the eye scan so man times, but still he was obliged to go through the eye scan in order to be let in the city.

After the eye scan on the airport, we had to line up on a long line with arriving people waiting for being let in Dubai, show the copy of the visa with the eye scan seal to airport police officer. He checks the seal the visa, the international passport and then one is asked to stay in front of another camera snd they take a picture of him, once again a security measure …
This is just crazy, I understand that security is important but the measures implemented today on airports are inhuman and even abusive, not to mention they break any privacy one can have in today's world … I'm even scared to think about how a security check on an airport will look like 20 years from now.
Anyways after all the aforementioend checks we were FINALLY allowed to enter Dubai, what first striked me was the size of the buildings, its the first time in my life I've seen a buildings of this amazing size, just incredible!
Also all the buildings are all in color lights and are flashing like spaceships, probably requirement to make sure no airplane tries to land over some of the buildings at night time 😉

Roland, a part time tech consultant for Cadia Holding and a colleague, took us up from the airport and drove us to the hire apartment in Jumeirah Beach, Rimal 6 – ap. number 53, where we're currently settled.

Jumeirah Beach Residence Rimal
Jumeira Beach Rimal buildings

I'm very thankful Roland was there otherwise if we were supposed o pick up a taxi, they would have charged us at least 80, 90 EUR! for bringing us to the apartment.
The prices of transportation here and in general prices are a killing onse. I guess this is pretty normal especially if you consider the countless amount of money invested in Dubai.
Honestly Dubai looks like a paradise on earth, everything is amazingly well organized, as well the technology involved everywhere is on a perfect and a better level than almost everything, I've seen in Holland, Germany and probably almost every other of the Western Europe countries.

Something strange that took my attention here was that in every big mall or big store, they have a special prayer room, which are suited for pracicing muslims to do they're 5 times daily prayers 😉
Here in Dubai I was shocked to see many of the native arabic ladies to be completely wrapped up inside mostly black dresses, where the man were often dressed in a complete dress without a zipper called thobes as well as a sort of a hat like long veil very similar to our orthodox christian priest monks viels.

Dubai man with Thobes in order smiling ;) Dubai man with Thobes lined in order smiling

The veil like dresshing the man wears has a ring on top of the head which has some kind of muslim symbolism probably I'm not aware of. An interesting thing, I've found out here is that this veil for the hat has colors, if it's red this means it's Saudi Arabia a white one means usually the man is from Dubai and the nearby regions o something like that.

When we went out of the airport here the temperature difference was killing it was like 35 Celsium degrees at 21:00 o'clock night time!!

I'm actually lucky to come here in Autumn, temperatures on Autumn are acceptable at night it's like 20-25C and in day usually 35-40C.

The private apartment, where we're accommodated is amazing, it's big like a place, it has everything a flat TV, wireless internet, 2 bathrooms, 4 bedrooms etc.
To enter the buillding one needs to use his special ID card which is secured by a bar code, which has to be tagged on a bar code reader on the building entrance door.
Dubai itself seems more international at times, even than Western europe, you can see everything in Both English and Araabic, so you can understand basicly everything. Everyone speaks from the lowest employee to the office workers an acceptable English and thus communication is not a constraint like in Holland, where many people speak English which is too much influenced by German and german lingual structure.

I'm very thankful to God for blessing me to come to this nice place, now I'm laing over a nice coach and blogging.
By so far, I've seen two of the biggest Dubai Malls and some general architecture, all is collosal in size and reall amazingly built. I've heard from people quality of buildings is not that good as everything is being built in too short time and with cheap materials and by Indian labours who earn like 5 dollars a day. I'm not sure though how truthful is this as I think the quality of the apartment, we're accommodated is great.

Each room is equipped with a Clima, so the temperature inside is steady 22- 24C degrees. The body shock when you go out hence is really severe as usually there is like 10 or 15C degrees difference in temmperature.
Climas are, good but they create too much noise at night it's a bit noisy, but maybe with time one can get used to it.
The cars I saw here in Dubai are amazing, all the cards are really really expensive maybe the cheapeast car in Dubai worths no less than 10 000 o 20 000 EUR.
Euro, Dollars and the official UAE currency dirham are accepted everywhere in shopping malls and food stores and this is really nice.
The taxi drivers charge normal prices here, I was out with Jure and we took taxi few times and each time for like 5-7 km distance, the taxi charged approximately 30 AED per drive.
Random Taxi in Dubai

The Taxis are all luxurious cars with a (airconditioners) climas, it seems they have a metro already operating here as well as comperativfe cheap transportation with buses, but I'm not sure if something could be really cheap here 😉
Everywhere I went here I can notice something really beautiful in terms of either mostly modern design with arabic elemnts or technology. The elevators here are really quick. To go to the last stage of the 36 stages building here in Dubai it tooks the elevator no more than 1 minute 😉
The food here in Dubai seems decent, though its not that good like naturally grownned products or a chicken or cow who was rised in a private farm.
Anyways the food here in United Arab Emirates seems to be way better than the food in Holland and Germany, where it is a bit like plastic.
I don't know if its because of the Sun excessive warmth, God's grace to me or what but I should mark, here in Dubai and maybe in rest of UAE one feels warmer than in Western Europe.

People don't smile too much here especially the people who work on the lower levels of job, clear indicator that they don't earn good money.
I like that they don't smile too much as this reminds me in Bulgaria, where you can see sour faces a way more often than a smiled one.
Here people look a bit less soury than in Bulgaria.

I will be in Dubai 6 more days, so I'll have a clearer picture in my head about the place after some few days. Nevertheless from what I've seen so far, I'm really very amazed and very thankful to God to leeting me see all this new interesting things and culture.
I should take the time to find and take a look in the more traditional places here. Pitily globalization is seriously destroing the local people culture here, and you can't feel the real culture besides the arabic kind of dress, the mosques , prayer rooms and some entwisted muslim architecture with the modernistic buildings.
It will be very nice to see some real camels, elephants or some typically arabic kind of things 😉

Summing it up, the overall atmosphere here, the organzation of thingsm the business climate and infrastructure is something we europeans should learn from.

Selecting Best Wireless channel / Choosing Best Wi-FI channel for Wireless Routers or (How to improve Wireless Network performance)

Monday, February 22nd, 2010

Wireless AP
Below are some valuable advices on Wireless Access Point initial install and configuration to better off your Wireless connection.It’s worthy to note that the 2.4 GHz

Wi-Fi signal range is divided into a number of smaller bands or “channels,” similar to television channels. I decided to run my wireless on channel 12 since this there was no other wireless routers operating on that frequency, though most routers are preconfigured to spread it’s signal on channel 6.

There is a difference in channels available for setup for 802.11b and 802.11g wireless networks in the United States and the European Union. In the USA the wireless channels available are from (1 to 11) whether in the EU it’s in the range of (1-13). Each of the Wireless channels run on a different frequency.

The lower the number of the channel is the lowest the radiating frequence band on which data is transmitted .Subsequently, increasing the channel increases the frequency slightly. Therefore the higher the channel you select on your AP the lesser the overlap with other devices running on the same channel and thus the lesser the possibility to overlap and interference.
It’s quite likely that you experience problems, if you use the default wireless channel which is 6.
If that’s the case it’s recommended to use either channel 1 or channel 11. In case of interference, i.e. overlap with other wireless networks, cellphones etc., there are 2 possible ways to approach the situation. In case of smaller interference, any change in channel on which there is no wireless device running could fix it up. The second way is to choose a wireless channel for your router in between 1,6 or 11 in (The USA) or 1,7,13 in Europe.
Up to 3 networks can run on the same space with minimum interference, therefore it would be a wise idea to check the list of wireless routers in your and check if there are others running on the same frequency.
As I mentioned in the beginning of the post I initially started running my wireless on channel 12, however after I discovered it is recommended to run your wireless router either on channel 1 7 or 13 in Europe I switched my D-Link DI-524 wireless router to transmit it’s signal on Channel 13.

I should testify that after changing the wireless channel, there was quite an improvement in my wireless connection.For instance before I change to Channel 13 (when my wireless internet was still streamed on channel 12) my wireless had constantly issues with disconnects because of low wireless signal.

Back then My wireless located physically in like 35 meters away set in another room, I can see my wireless router hardly connected on like 35%, changing to channel 13 enhanced my connection to the current 60% wireless router availability.

It’s also an interesting fact that Opened Wireless networks had better network thoroughput, so if you’re living in a house with a neighbors a bit distant from your place then you might consider it as a good idea to completely wipe out Wireless Router security encryption and abandon the use of WEP or WPA network encryption.

In case if all of the above is not working for you, you might consider take a close look at your Wireless Wireless LAN pc card and see if there are no any kind of bumps there. Another really interesting fact to know is that many people here in Bulgaria tend to configure there Wireless Access Points on channels either 1,6 or 11 which is quite inadequate considering that we’re in the EU and we should use a wireless channel between 1, 7 or 13 as prescribed for EU citizens.

Another thing not to forget is to place your wireless in a good way and prevent it from interferences with other computer equipment. For example keep the router at least few meters away from PC equipment, printers, scanners, cellphones, microwaves. Also try to put your wireless router on some kind of central place in your home, if you want to have the wireless signal all around your place.

At my place I have a microwave in the Kitchen which is sometimes an obstacle for the Wireless signal to flow properly to my notebook, fortunately this kind of interference happens rare (only when the Microwove is used to warm-up food etc.).Upgrading 802.11b wireless card / router to a better one as 802.11g is a wise idea too. 802.11g are said to be like 5 times faster than 802.11b.

You can expect 802.11b wireless network to transfer maximum between 2-5 Mbp/s whether 802.11g is claimed to transfer at approximately (12 to 23 Mbp/s). If even though the above prescriptions there is no wireless signal at some remote place at your home, you might consider adding a wireless repeater or change the AP router antenna.

By default wireless Routers are designed to be omni-directional (in other terms they broadcast the wireless signal all around the place. Thus is quite unhandy if you intend to use your Wireless net only in certain room or location at your place. If that’s the case for you, you might consider upgrading to a hi-gain antenna that will focus the wireless signal to an exact direction. Let me close this article with a small diagram taken from the net which illustrates a good router placement that will enable you to have a wwireless connection all over your place.

improve wireless router placement diagram

How to increase brightness on Fujitsu Siemens Amilo PI22515 notebook with Slackware Linux

Friday, March 9th, 2012

Increase LCD screen brightness on Fujitsu Siemens Amilo laptop with Linux Slackware

A friend of mine has Fujitsu Siemens Amilo laptop and is full time using his computer with Slackware Linux.

He is quite happy with Slackware Linux 13.37 on the laptop, but unfortunately sometimes his screen brightness lowers. One example when the screen gets darkened is when he switch the computer on without being plugged in the electricity grid. This lowered brightness makes the screen un-user friendly and is quite tiring for the eye …

By default the laptop has the usual function keys and in theory pressing Function (fn) + F8 / F7 – should increase / decrease the brightness with no problems, however on Slackware Linux (and probably on other Linuxes too?), the function keys are not properly recognized and not responding whilst pressed.
I used to have brigtness issues on my Lenovo notebook too and remember how irritating this was.
After a bit of recalling memories on how I solved this brightness issues I remembered the screen brigthness on Linux is tunable through /proc virtual (memory) filesystem.

The laptop (Amilo) Fujitsu Siemens video card is:

lspci |grep -i vga
00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) (rev 03)

I took a quick look in /proc and found few files called brightness:
 

  • /proc/acpi/video/GFX0/DD01/brightness
  • /proc/acpi/video/GFX0/DD02/brightness
  • /proc/acpi/video/GFX0/DD03/brightness
  • /proc/acpi/video/GFX0/DD04/brightness
  • /proc/acpi/video/GFX0/DD05/brightness

cat-ting /proc/acpi/video/GFX0/DD01/brightness, /proc/acpi/video/GFX0/DD03/brightness, /proc/acpi/video/GFX0/DD04/brightness all shows not supported and therefore, they cannot be used to modify brightness:

bash-4.1# for i in $(/proc/acpi/video/GFX0/DD0{1,3,4,5}/brightness); do \
cat $i;
done
<not supported>
<not supported>
<not supported>
<not supported>

After a bit of testing I finally succeeded in increasing the brightness.
Increasing the brightness on the notebook Intel GM965 video card model is done, through file:

/proc/acpi/video/GFX0/DD02/brightness

To see all the brightness levels the Fujitsu LCD display supports:

bash-4.1# cat /proc/acpi/video/GFX0/DD02/brightness
levels: 13 25 38 50 63 75 88 100
current: 25

As you can see the dark screen was caused cause the current: brightness is set to a low value of 25.
To light up the LCD screen and make the screen display fine again, I increased the brightness to the maximum level 100, e.g.:

bash-4.1# echo '100' > /proc/acpi/video/GFX0/DD02/brigthness

Just for the fun, I've written also a two lines script which gradually increases LCDs brightness 🙂

bash-4.1# echo '13' > /proc/acpi/video/GFX0/DD02/brightness;
bash-4.1# for i in \
$(cat /proc/acpi/video/GFX0/DD02/brightness|grep 'levels'|sed -e 's#levels:##g'); do \
echo $i > /proc/acpi/video/GFX0/DD02/brightness; sleep 1; \done

fujitsu_siemens_brightness_fun.sh script is fun to observe in changing the LCD screen gradually in one second intervals 🙂

Here is also a tiny program that reduces and increases the notebook laptop brightness written in C. My friend Dido, coded it in just few minutes just for the fun 🙂
To permanently solve the issues with darkened screen on boot time it is a good idea to include echo '100' > /proc/acpi/video/GFX0/DD02/brigthness in /etc/rc.local:

bash-4.1# echo '100' > /proc/acpi/video/GFX0/DD02/brigthness

I've also written another Universal Linux Increase laptop screen brightness Shell script which should be presumable also working for all Laptop models running Linux 🙂

My maximize_all_linux_laptops_brightness.sh "universal increase Linux brightness" script is here
I'll be glad to hear from people who had tested the script on other laptops and can confirm it works fine for them.
 

No Title

Tuesday, February 26th, 2008

Today I helped my cousing to fix his internet connection on a laptop.
The laptop was running Vista. A real nightmare, this OS is really heavy and even messier than Windows XP.
What else I’m trying to cope with life. Life is tough. What I can say….

Also I started a vsftp server on a FreeBSD box it took me some time because of configuration issues.

Right now I’mtrying to run a snort server still unsuccessfully for some reason the snort daemon does not start.

In the college everything is going in the old manner, except we have started studying Marketing II and another subject I forgot the name it is supposed to be something like statistics. The day was quiet with a bit of work.

END—–