Posts Tagged ‘Windows’

Getting Console and Graphical hardware system information on Linux with cpuinfo, neofetch, CPU-X (CPU-Z Unix alternative), I-nex and inxi

Tuesday, September 17th, 2019

getting-console-information-and-graphical-hardware-system-information-Linux-cpuinfo-neofetch-cpu-x-i-nex-1

Earlier I've wrote extensive article on how to get hardware information on Linux using tools such as dmidecode, hardinfo, lshw, hwinfo, x86info and biosdecode but there are few other hardware reporting tools for Linux worthy to mention that has been there for historical reasons such as cpuinfo as we as some new shiny ones such as neofetch (a terminal / console hardware report tool as well the CPU-X and I-Nex  which is Linux equivalent to the all known almost standard for Windows hardware detection CPU-Z worthy to say few words about.
 

1. cpuinfo

 

Perhaps the most basic tool to give you a brief information about your Processor type (model) number of Cores and Logical Processors is cpuinfo

I remember cpuinfo has been there since the very beginning on almost all Linux distributions's repository, nowadays its popularity of the days when the kings on the Linux OS server scenes were Slackware, Caldera OpenLinux and Redhat 6.0 Linux and Debian 3.0  declined but still for scripting purposes it is handy small proggie.

To install and run it in Debian  / Ubuntu / Mint Linux etc.:

 

aptitude install -y cpuinfo

/usr/bin/cpu-info

 

Linux-get-processor-system-info-in-console-cpu-info

 

2. neofetch

 

The next one worthy to install and check is neofetch (a cross-platform and easy-to-use system information
 command line script that collects your Linux system information and display it on the terminal next to an image, it could be your distributions logo or any ascii art of your choice.)

The cool thing about neofetch is besides being able to identify the System server / desktop hardware parameters, it gives some basic info about number of packages installed on the system, memory free and in use, used kernel and exact type of System (be it Dell PowerEdge Model XX, IBM eSeries Model / HP Proliant Model etc.

neofetch-OS-hardware-information-Linux-ascii-system-info-desktop-notebook

neofetch info generated on my home used Lenovo Thikpad T420

neofetch-OS-hardware-information-Linux-ascii-system-info-pcfreak-home-server
neofetch info from pc-freak.net running current machine

neofetch even supports Mac OS X and Windows OS ! 🙂

To install neofetch on Mac OS X:
 

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"


or via Mac ported packages using brew

brew install neofetch


neofetch-screenshot-from-Mac-OS-X

neofetch is even installable on Windows OS that has the scoop command line installer tool installer manager with below PowerShell code in cmd.exe (Command line):

powershell Set-ExecutionPolicy RemoteSigned -scope CurrentUser
iex (new-object net.webclient).downloadstring('https://get.scoop.sh')
scoop install git
scoop install neofetch

neofetch-microsoft-windows-hardware-command-line-report-tool-screenshot


By the way Scoop was quite a finding for me and it is pretty handy to install plenty of useful command line Linux / UNIX tools, such as curl, wget, git etc. in the same easy straight forward way as a standard yum or apt-get on Windows (without explicitly installing things as GnuWin and CygWin).
 

3. CPU-X graphical user interface hardware report Linux GUI alternative to Windows CPU-Z


The packages for CPU-X are a bit outdated and even though there are rpm packages for Fedora, OpenSuSE and .deb package for Debian for Debian, Ubuntu and ArchLinux (pacman), there is no up to date version for Debian 10 and the package builds distributed for different Linux distros are a bit outdated.

Thus to install CPU-X on any Linux distribution it is perhaps best to use the portable version (static binary) of CPU-X.
It is currently available on https://github.com/X0rg/CPU-X/releases

To install latest portable version of CPU-X

wget https://github.com/X0rg/CPU-X/releases/download/v3.2.4/CPU-X_v3.2.4_portable.tar.gz

mkdir CPU-X
cd CPU-X

tar -zxvvf CPU-X_v3.2.4_portable.tar.gz
-rwxr-xr-x yohan/users 4563032 2019-01-13 22:15 CPU-X_v3.2.4_portable.bsd64
-rwxr-xr-x yohan/users 5484968 2019-01-13 22:15 CPU-X_v3.2.4_portable.linux64

 

cp -rpf CPU-X_v3.2.4_portable.linux64 /usr/local/bin/
ln -sf /usr/local/bin/CPU-X_v3.2.4_portable.linux64 /usr/local/bin/cpu-x


Next run as superuser (root)
 

hipo@jeremiah:~$ su -c 'cpu-x'

 

As seen from below screenshots cpu-x reports a lot of concrete specific hardware data on:

  • Processor
  • Motherboard
  • Memory
  • System
  • Graphic card
  • Performance

cpu-x-cpu-cpu-z-alternative-linux-screenshot-CPU-info

cpu-x-cpu-cpu-z-alternative-linux-screenshot-caches-info

cpu-x-cpu-cpu-z-alternative-linux-screenshot-Motherboard-info

cpu-x-cpu-cpu-z-alternative-linux-screenshot-memory-info

cpu-x-cpu-cpu-z-alternative-linux-screenshot-system-info

cpu-x-cpu-cpu-z-alternative-linux-screenshot-graphics-info

CPU-X can be installed also on FreeBSD very easily by just installing from BSD port tree sysutils/cpu-x/
It is also said to work on other *BSDs, NetBSD, OpenBSD Unixes but I guess this will require a manual compilation based on FreeBSD's port Makefile.

4. I-Nex another GUI alternative to CPU-Z for UNIX / Linux

I-Nex is even more useful for general hardware reporting as it reports many hardware specifications not reported by CPU-X such as Battery type and Model Name  (if the hardware report is on a laptop), info on USB devices slots or plugged USB devices brand and specifications, the available Network devices on the system (MAC Addresses) of each of it, Installed and used drivers on Hard Disk (ATA / SATA / SCSI / SSD), HW Sector size, Logical Block size, HDD Sectors count and other specific Hard Drive data as well as information on available Audio (Sound Blaster) devices (HDA-Intel), used Codecs, loaded kernel ALSA driver, Video card used and most importantly indicators on Processor reported CPU (temperature).

 

To install I-nex

Go to https://launchpad.net/i-nex or any of the mirror links where it resides and install the respective package, in my case, I was doing the installation on Debian Linux, so fetched current latest amd64 package which as of moment of writting this article is i-nex_7.6.0-0-bzr977-20161012-ubuntu16.10.1_amd64.deb , next installed it with dpkg
 

dpkg -i i-nex_7.6.0-0-bzr977-20161012-ubuntu16.10.1_amd64.deb

 

As the package was depending on some other .deb packages, which failed to install to install the missing ones I had to further run
 

apt –fix-broken install

i-nex-cpu-info-linux-hardware-info-program

 

hre

I-Nex thermal indicators about CPU temperature on a Linux Desktop notebook

i-nex-gpu-info-linux-hardware-info-program

i-nex-mobo-info-linux-hardware-info-program

i-nex-audio-info-linux-hardware-info-program

i-nex-drivers-info-linux-hardware-info-program

i-nex-system-info-linux-hardware-info-program

i-nex-battery-info-linux-hardware-info-program

 

There are other Hardware identification report tools such as CUDA-Z that are useful to check if you have Nvidia Video Card hardware Installed on the PC to check the status of CUDA enabled GPUs, useful if working with nVidia Geforce, Quadro, Tesla cards and ION chipsets.

If you use it however be aware that CUDA-Z is not compatible with 3rd-party linux drivers for NVidia so make sure you have the current official Nvidia version.

 

5. Inxi full featured system information script

 

Inxi is a 10000 lines mega bash script that fetches hardware details from multiple different sources in /proc /sys and from commands on the system, and generates a beautiful looking console report that non technical users can read easily.

inxi-10-k-mega-bash-shell-script-reporting-on-installed-system-computer-hardware

 

inxi -Fx

 

 

inxi-report-on-installed-hardware-on-my-lenovo-thinkpad-home-laptop

Each of the pointed above tools has different method of collection of Hardware information from various resources e.g. – kernel loaded modules, dmesg, files like /proc/meminfo /proc/version /proc/scsi/scsi /proc/partitions.
Hence some of the tools are likely to report more info than otheres, so in case if some information you need regarding the system plugged in hardware is missing you can perhaps obtain it from another program. Most Linux distribution desktop provided GNOME package are including Hardinfo gui tool, but in many cases above mentioned tools are likely to add even more on info on what is inside your PC Box.
If you're aware of others tools that are useful not mentioned here please share it.

Check weather forecast from console (terminal) on GNU / Linux and FreeBSD howto

Friday, August 23rd, 2019

how to get weather forecast prognosis from command line text terminal / console on Linux and FreeBSD

Doing everything in Linux console / terminal is a question perhaps every Linux / BSD hacker wants to do as Graphical user interface and using web search or using Graphical Environment plugins is an unneded complexity + googling or duckduckgoing for weather to check your next vacation destination city has been more and more of a terrible experience (for me) as I'm not a big fan of using the OS in a GUI.
In that manner of thoughts, as a Linux console geek and hard core ASCII art fan. I was recently happy to find that  possible to check weather forecast in tty console or Linux terminal in a beautiful ascii art way easily through a Web wttr.in service – a web application weather forecast service that supports displaying the current and few days in future, weather forecast either in browser as a plain text or from the command line by simply accessing it with your favourite web access / transfer tool such as;
wget / curl or any of your favourite text browser elinks / lynx / w3m or if on *BSDs use fetch command.

 

Install Curl data transfer tool if it is not already


Wget is installed by default across most Linux distributions and fetch is present by default on BSDs, displaying it in text browser would perhaps be never used but if you decide to give it a try maybe try with elinks (to get colorful output), w3m and lynx will display a black and white results.

In case if you miss curl, install it:

On Debian distro

 

aptitude install -y curl


or Fedora

yum install -y curl


Of course to use wttr.in as it is Internet based Weather Forecast service the minimum you need to have is to have Internet connection to your Linux / BSD desktop computer.

Text based Weather Forecast Web App currently supports:

display the current weather as well as a 3-day weather forecast, split into morning, noon, evening and night

  • Temperature is displayed for morning, noon, evening and night (includes temperature range, wind speed and direction, viewing distance, precipitation amount and probability)
  • Provide results for Weather based on City / town / village location
  • Supports display of Moon Phases Forecast in calendar days
  • Supports multilingual names (Bulgarian Phonetic cyrillic / Russian and other exotic UTF-8 encodings such as Chineese and Japanese),  50+ languages are currently supported
  • Has ability for prognosis for hostname (domain) location based on an its IP GeoIP location on the Globe
  • Geographical locations / landmarks such as Lakes / Mountains etc. can be easily queried
  • Query results metrics could be configured, e.g. USCS units or EU and rest of world accepted ones (SI) metric
  • Displayed result could be either in ANSI (if from terminal / console / HTML if queried from browser or in PNG – if needed)

 

Where wttr.in could be useful ?

The best applications use, I can think of are for server (shell) / perl scripting automation purposes, it could be useful especially in TOO HOT, TOO, COLD, TOO WET location in Small and Middle sized Data Centers Green Energy (Sun Panel) Parks / Wind Energy situated Linux monitoring hosts to track possible problems of overheats or overcolding of servers due to abnormal excessive temperatures such as the ones we experienced this summer here All across in Europe or in too Cold DC locations such as heat locations Deserts in African Countries, Saudi Arabia or Chukotka or Siberia in Russia.
Other application is as a backup option to other normal Weather report services by PHP or Python scripts that fetch data, from multiple places.
Of course since this is a third party controlled service, the downtime is due to excessive connection requests, the service could get flooded and stopped working, but I guess for any Commercial use, wttr.in creator Igor Chubin would be happy to sell a specific crafted service for any end user candidates.


Here is few examples of the beautiful returned ASCII art formatted output of wttr.in.
 

1. Getting a three days Weather Forecast prognosis for city / town location

To get what is current weather in my current city of Living, Sofia Bulgaria just pass the city to the URL address

curl http://wttr.in/Sofia

text-console-wttr.in-Weather-forecast-Sofia-for-Linux

 

links http://wttr.in/Dobrich

 

curl-Linux-show--Dobrich-Weather-forecast-in-lynx-text-browser


Default links (Linux) www text browser produces ugly black and white

2. Displaying Weather forecast with wget

 

wget -O- -q http://wttr.in


getting-weather-forecast-on-linux-terminal-console-with-wget-command

If you're lazy you can even omit the http:// as wget will look for HyperText Transmission Protocol by itself

 

wget -O- -q wttr.in

 

3. Getting Forecast results for a Tourist Destination


Lets get the weather forecast for the popular tourist Bulgarian destination of the Seven Rila Lakes (near Rila Monastery), situated in the Rila Mountain BG.

 

curl http://wttr.in/Seven+Rila+Lakes

 

Console-terminal-Weather-forecast-Linux-Seven-Rila-Lakes

 

 

4. Display Forecast for a specific server IP


Displaying information on specific server IP address current situated in GeoIP database, of course could be not really true, as the IP could be just a Load Balancer a router that does NAT to some internal DMZ-ed location server, but anyways it is a cool feature.

Lets get information on what is the weather on Google Global's Public DNS server IP 8.8.8.8 so commonly used to guarantee a Windows and Linux Desktop client machines Internet connectivity.
 

curl wttr.in/@8.8.8.8

 

wttr.in-Linux-text--forecast-service-curl-screenshot Google Public DNS location weather forecast

5. Download PNG image picture from wttr.in service

 


Lets say you want to get a 3 days standard Weather forecast for the popular Black Sea Resort town in Bulgaria Pomorie (a beautiful sea city which has even a functioning 5 Monks Monastery Pomorie Monastery situated near sea coast)

 

curl http://wttr.in/Pomorie.png
 

 

–2019-08-22 20:15:51–  http://wttr.in/Pomorie.png
Resolving wttr.in (wttr.in)… 5.9.243.187
Connecting to wttr.in (wttr.in)|5.9.243.187|:80… connected.
HTTP request sent, awaiting response… 200 OK
Length: 42617 (42K) [image/png]
Saving to: ‘Pomorie.png’

Pomorie.png                                     100%[=======================================================================================================>]  41.62K  –.-KB/s    in 0.07s   

2019-08-22 20:15:52 (586 KB/s) – ‘Pomorie.png’ saved [42617/42617]

 

Note: The generated .png is again the ASCII art produced by a direct text fetch bug in pic format

 

6. Displaying Current Moon Phase


If you want to enjoy a text based Moon phase picture through wttr.in 🙂

wget -O- -q wttr.in/Moon


Display-current-Phase-of-Moon-in-terminal-console-Linux-wttr.in-service

You can also get a Moon Phase prognosis for a current future date or get a previous date phase

 

curl wttr.in/moon@2019-09-15

Full-Moon-Weather-forecast-text-console-reporting-via-wttr.in-on-Gnu_Linux


Full Moon Madness !! – Vampires are out beaware and Enjoy the ultra kewl ASCII Colorful Art 🙂
 

7. Getting help for wttr.in terminal Waether Forecast results

 

 

$ curl wttr.in/:help
Usage:

 

    $ curl wttr.in          # current location
    $ curl wttr.in/muc      # weather in the Munich airport

Supported location types:

    /paris                  # city name
    /~Eiffel+tower          # any location
    /Москва                 # Unicode name of any location in any language
    /muc                    # airport code (3 letters)
    /@stackoverflow.com     # domain name
    /94107                  # area codes
    /-78.46,106.79          # GPS coordinates

Special locations:

    /moon                   # Moon phase (add ,+US or ,+France for these cities)
    /moon@2016-10-25        # Moon phase for the date (@2016-10-25)

Units:

    m                       # metric (SI) (used by default everywhere except US)
    u                       # USCS (used by default in US)
    M                       # show wind speed in m/s

View options:

    0                       # only current weather
    1                       # current weather + 1 day
    2                       # current weather + 2 days
    A                       # ignore User-Agent and force ANSI output format (terminal)
    F                       # do not show the "Follow" line
    n                       # narrow version (only day and night)
    q                       # quiet version (no "Weather report" text)
    Q                       # superquiet version (no "Weather report", no city name)
    T                       # switch terminal sequences off (no colors)

PNG options:

    /paris.png              # generate a PNG file
    p                       # add frame around the output
    t                       # transparency 150
    transparency=…        # transparency from 0 to 255 (255 = not transparent)

Options can be combined:

    /Paris?0pq
    /Paris?0pq&lang=fr
    /Paris_0pq.png          # in PNG the file mode are specified after _
    /Rome_0pq_lang=it.png   # long options are separated with underscore

Localization:

    $ curl fr.wttr.in/Paris
    $ curl wttr.in/paris?lang=fr
    $ curl -H "Accept-Language: fr" wttr.in/paris

Supported languages:

    af da de el et fr fa hu id it nb nl pl pt-br ro ru tr uk vi (supported)
    az be bg bs ca cy cs eo es fi ga hi hr hy is ja jv ka kk ko ky lt lv mk ml nl fy nn pt pt-br sk sl sr sr-lat sv sw th te uz zh zu he (in progress)

Special URLs:

    /:help                  # show this page
    /:bash.function         # show recommended bash function wttr()
    /:translation           # show the information about the translators

 


 

 

8. Comparing two cities weather from command line

 


One useful use of wttr.in if you plan to travel from Location city A to Location city B is to compare the temperatures with a simple bash one liner script:

 

 

 

diff -Naur <(curl -s http://wttr.in/Sofia ) <(curl -s http://wttr.in/Beograd )

 

 

9. Using ansiweather command to get Weather Temperature / Wind / Humidity in one line beuatiful text

 


If you go and install answeather Linux package

 

apt-get install –yes ansiweather


You will get a shell script wrapper with ANSI colors and Unicode symbols support. Weather data comes from OpenWeatherMap, this is useful if wttr.in is not working due to some URL malfunction (due to service is DoS-ed) etc.

 

ansiweather -l Atina

 

ansiweather-Atina-weather-forecast-result-linux-text-console

Lets use ansiweather to print the weather prognosis for upcoming 5 days for near port of Burgas, BG
 

ansiweather -F -l Burgas

ansiweather-print-weather-forecast-prognosis-for-5-days-in-Linux-text-terminal

 

10. Get all Weather current forecast for each Capital in the world


You can download and use this simple plain text file list of All Country Capitals in the World (country-capitals-all-world.txt) with ansiweather and a bash loop to get displayed each and every current day Weather Forecast in the World, here is how:

 

while read line; do ansiweather -l $line; sleep 3; done < country-capitals-all-world.txt


ansiweather-all-countires-capitals-result

As you can see some of the very exotic third world capitals does not return data so 'ERROR: Cannot fetch weather data' is returned.


You can also substitute ansiweather with curl wttr.in/$line to do get the beautiful ASCII art 3 days weather forecast via wttr.in

 

while read line; do curl http://wttr.in/$line; sleep 3; done < country-capitals-all-world.txt


I'll be happy to know other nice ASCII Art supporting Web service to enjoy from text terminal on Linux (nomatter useful or) just funny joyful prank maniacal pranks such as Watching text ASCII version remake of Star Wars Classic Movie by simply telnetting to towel.blinkenlights.nl (if you haven't so just telnet and enjoy the streamed ASCIIs ! 🙂

 

telnet towel.blinkenlights.nl

 

watch-star-wars-ascii-art-version-remake-online-with-telnet-on-linux-console-terminal

 

Talking about fun and ASCII, its worthy to mention hollywood Linux package

hipo@jeremiah:~/Desktop$ apt-cache show hollywood|grep -i desc -A 3
Description-en: fill your console with Hollywood melodrama technobabble
 This utility will split your console into a multiple panes of genuine
 technobabble, perfectly suitable for any Hollywood geek melodrama.
 It is particularly suitable on any number of computer consoles in the


Description-md5: 768f44c76220ea2b35f855ea34c8bc35
Homepage: http://launchpad.net/hollywood
Section: games
Priority: optional


Once installed on Debian with:

aptitude install -y hollywood

You can get in a rapid manner plenty of tmux (screen like – virtual console emulator) split screen statistics about your notebook / workstation / server CPU usage, mlocate.db status, info about plugged in machine voltage, Speedometer (statistics about Network bandwidth usage), System load avarage (CPU Count, Memory Utilization) and some other random info coming out of dmesg kernel log and more. The information displayed in splitted windows changes rapidly and (assuming you run it at home Desktop with a soundblaster) and not remotely, a james bond Agent 007 soundtrack is played on the back, that brings up one's adrenaline and makes it look even cooler.

hollywood-melodrama-technobubble-split-console-multiple-panes-for-genuine-technobubble

To give you an idea what to expect, here is shot of /usr/games/hollywood (the program start binary location) on Debian GNU / Linux running, Enjoy! 🙂
 

Make laptop not to sleep on close on Microsoft Windows 10 / Disable notebook LID close sleep Windows

Thursday, November 8th, 2018

Windows10-Define-power-options-actions-settings

I have to use Windows 10 Enterprise on a notebook for Work purposes once again and use a Docking station connected to an external Display Monitor at the Company Office work location one of the first things to configure is to disable LID Display Sleep on laptop close because otherwise the notebook has to be left opened almost half opened in order to work with the PC to change that unwanted behavior there is an easy way via Windows Control Panel configuration, here is how:

Open

Windows Control Panel 

 


navigate to:

edit-plan-settings-power-settings-windows-10.png

 

 

 

Power Options


choose:

Change advanced power settings, scroll down a bit to:

power-options-power-buttons-and-lid-lid-close-action-do-nothing-windows-10-scresnshot

 

Power Buttons and lid (menu) 


press over it from sub-menu
 

Plugged in

 


Select

 

 

Do nothing

 


That's all from now on closing the notebook when plugged in to the Dock station or to a direct External Monitor will no longer do the sleep.

As you can see from the menus, there is a lot of triggering rules to configure further from Power Management (Advanced Settings) on how applications / USBs / Multimedia and Hard Disks should behave under different power conditions so if you have the time I recommend you go through them and check them for yourself.

How to stop REDSHIFT night light brightness and color saturation eye strain protection on GNU / Linux

Tuesday, August 7th, 2018

http://jonls.dk/assets/redshift-icon-256

You know on most operating systems such as Windows 8 / 10 ,  Mac OS X as well as  GNU / Linux / BSDs (FreeBSD) etc. with graphical environments such as  GNOME / KDE etc. , there is this default functionality nowadays that is helping to reduce eye strain and improve night sleep by modifying the light and brightness as well as coloring eminated by the monitor. 

On Windows this technology is called Night Light and is easily enabled by nagivating through menus:

 

Start  > Settings  > System > Display > Night light > Night light settings.


set-your-display-windows-night-time-windows-os-10

Windows 10 Night Time settings shot

On GNU / Linux and BSD-es the eye strain application that comes preinstalled by default on most distributions is redshift – for more what is redshift check out my previous article get more peaceful night sleep on Ubuntu, Mint and Xubuntu Linux.

There is also the alternative to use F.lux (which by the way is used to prevent eye strain on Mac OS X and was the program of choice to prevent eye strain in older Windows versions)

Even though Night Light / and redshift monitor color warmth change is often mostly useful and have a positive impact improving sleep as well removes eye strain on Linux my experience with it is not too positive as it changes the monitor color gamma and makes it often quite reddish and annoying even through a normal day and not only night time.
This makes the work experience on the computer not pleasurable thus just removing it for me and I guess for many would be a must.

Assuming that you have installed Free software OS such as Linux with redshift (note that on on older releases of Deb and RPM package based distributions: you will have to manually install it with something like:)

On Debian based distros with:
 

root@debian:~# apt-get install –yes redshift redshift-gtk


On RPM Fedora / Cent OS, Redhat Enterprise Linux etc. with a command like:

 

[root@fedora]# yum install –yes redshift redshift-gtk

redshift-on-KDE-settings-menu

Redshift settings on Linux with KDE GUI

So in order to remove redshift it completely from Linux which usually on most GNU / Linux distros is running as a default process

redshift-change-monitor-brightness-to-reduce-eye-strain-gnome

 

 

 

 

 


1. * Make sure you kill all processes called redshift and redshift-gtk


to do so check processes with same name and KILL 'EM ALL!:
 

root@linux:~# ps aux|grep -i redshift
hipo     44058  2.8  0.5 620980 42340 pts/2    Sl+  20:33   0:00 /usr/bin/python3 /usr/bin/redshift-gtk
hipo     44059  0.1  0.0 295712  6476 pts/2    Sl+  20:33   0:00 /usr/bin/redshift -v

root@linux:~# kill -9 44058 44059
 


2. * Set the color temperature of the Monitor / Screen back to 6500K (this can be done either by the button menu that most screens have)


or manually with redshift itself by executing command:

 

root@linux:~# redshift -O 6500


As the screen is back to normal color gamma, its now time to completely remove redshift in order to prevent it to mess up with your monitor colors, on next PC boot or on Gnome / Mate whatever UI used session logout.

To do so issue commands:

 

 

root@linux:~# dpkg –purge redshift redshift-gtk
(Reading database … 516053 files and directories currently installed.)
Removing redshift-gtk (1.11-1) …
Purging configuration files for redshift-gtk (1.11-1) …
Removing redshift (1.11-1) …
Processing triggers for man-db (2.8.3-2) …
Processing triggers for hicolor-icon-theme (0.17-2) …
Processing triggers for mime-support (3.61) …
Processing triggers for gnome-menus (3.13.3-11) …
Processing triggers for desktop-file-utils (0.23-3) …
Processing triggers for menu (2.1.47+b1) …

3. Enjoy normal colors on your monitor  Goodbye Forever REDSHIFT, goodbuy dark crappy Screen during the day. Hello normal Screen light !!! 🙂

Block Web server over loading Bad Crawler Bots and Search Engine Spiders with .htaccess rules

Monday, September 18th, 2017

howto-block-webserver-overloading-bad-crawler-bots-spiders-with-htaccess-modrewrite-rules-file

In last post, I've talked about the problem of Search Index Crawler Robots aggressively crawling websites and how to stop them (the article is here) explaning how to raise delays between Bot URL requests to website and how to completely probhit some bots from crawling with robots.txt.

As explained in article the consequence of too many badly written or agressive behaviour Spider is the "server stoning" and therefore degraded Web Server performance as a cause or even a short time Denial of Service Attack, depending on how well was the initial Server Scaling done.

The bots we want to filter are not to be confused with the legitimate bots, that drives real traffic to your website, just for information

 The 10 Most Popular WebCrawlers Bots as of time of writting are:
 

1. GoogleBot (The Google Crawler bots, funnily bots become less active on Saturday and Sundays :))

2. BingBot (Bing.com Crawler bots)

3. SlurpBot (also famous as Yahoo! Slurp)

4. DuckDuckBot (The dutch search engine duckduckgo.com crawler bots)

5. Baiduspider (The Chineese most famous search engine used as a substitute of Google in China)

6. YandexBot (Russian Yandex Search engine crawler bots used in Russia as a substitute for Google )

7. Sogou Spider (leading Chineese Search Engine launched in 2004)

8. Exabot (A French Search Engine, launched in 2000, crawler for ExaLead Search Engine)

9. FaceBot (Facebook External hit, this crawler is crawling a certain webpage only once the user shares or paste link with video, music, blog whatever  in chat to another user)

10. Alexa Crawler (la_archiver is a web crawler for Amazon's Alexa Internet Rankings, Alexa is a great site to evaluate the approximate page popularity on the internet, Alexa SiteInfo page has historically been the Swift Army knife for anyone wanting to quickly evaluate a webpage approx. ranking while compared to other pages)

Above legitimate bots are known to follow most if not all of W3C – World Wide Web Consorium (W3.Org) standards and therefore, they respect the content commands for allowance or restrictions on a single site as given from robots.txt but unfortunately many of the so called Bad-Bots or Mirroring scripts that are burning your Web Server CPU and Memory mentioned in previous article are either not following /robots.txt prescriptions completely or partially.

Hence with the robots.txt unrespective bots, the case the only way to get rid of most of the webspiders that are just loading your bandwidth and server hardware is to filter / block them is by using Apache's mod_rewrite through

 

.htaccess


file

Create if not existing in the DocumentRoot of your website .htaccess file with whatever text editor, or create it your windows / mac os desktop and transfer via FTP / SecureFTP to server.

I prefer to do it directly on server with vim (text editor)

 

 

vim /var/www/sites/your-domain.com/.htaccess

 

RewriteEngine On

IndexIgnore .htaccess */.??* *~ *# */HEADER* */README* */_vti*

SetEnvIfNoCase User-Agent "^Black Hole” bad_bot
SetEnvIfNoCase User-Agent "^Titan bad_bot
SetEnvIfNoCase User-Agent "^WebStripper" bad_bot
SetEnvIfNoCase User-Agent "^NetMechanic" bad_bot
SetEnvIfNoCase User-Agent "^CherryPicker" bad_bot
SetEnvIfNoCase User-Agent "^EmailCollector" bad_bot
SetEnvIfNoCase User-Agent "^EmailSiphon" bad_bot
SetEnvIfNoCase User-Agent "^WebBandit" bad_bot
SetEnvIfNoCase User-Agent "^EmailWolf" bad_bot
SetEnvIfNoCase User-Agent "^ExtractorPro" bad_bot
SetEnvIfNoCase User-Agent "^CopyRightCheck" bad_bot
SetEnvIfNoCase User-Agent "^Crescent" bad_bot
SetEnvIfNoCase User-Agent "^Wget" bad_bot
SetEnvIfNoCase User-Agent "^SiteSnagger" bad_bot
SetEnvIfNoCase User-Agent "^ProWebWalker" bad_bot
SetEnvIfNoCase User-Agent "^CheeseBot" bad_bot
SetEnvIfNoCase User-Agent "^Teleport" bad_bot
SetEnvIfNoCase User-Agent "^TeleportPro" bad_bot
SetEnvIfNoCase User-Agent "^MIIxpc" bad_bot
SetEnvIfNoCase User-Agent "^Telesoft" bad_bot
SetEnvIfNoCase User-Agent "^Website Quester" bad_bot
SetEnvIfNoCase User-Agent "^WebZip" bad_bot
SetEnvIfNoCase User-Agent "^moget/2.1" bad_bot
SetEnvIfNoCase User-Agent "^WebZip/4.0" bad_bot
SetEnvIfNoCase User-Agent "^WebSauger" bad_bot
SetEnvIfNoCase User-Agent "^WebCopier" bad_bot
SetEnvIfNoCase User-Agent "^NetAnts" bad_bot
SetEnvIfNoCase User-Agent "^Mister PiX" bad_bot
SetEnvIfNoCase User-Agent "^WebAuto" bad_bot
SetEnvIfNoCase User-Agent "^TheNomad" bad_bot
SetEnvIfNoCase User-Agent "^WWW-Collector-E" bad_bot
SetEnvIfNoCase User-Agent "^RMA" bad_bot
SetEnvIfNoCase User-Agent "^libWeb/clsHTTP" bad_bot
SetEnvIfNoCase User-Agent "^asterias" bad_bot
SetEnvIfNoCase User-Agent "^httplib" bad_bot
SetEnvIfNoCase User-Agent "^turingos" bad_bot
SetEnvIfNoCase User-Agent "^spanner" bad_bot
SetEnvIfNoCase User-Agent "^InfoNaviRobot" bad_bot
SetEnvIfNoCase User-Agent "^Harvest/1.5" bad_bot
SetEnvIfNoCase User-Agent "Bullseye/1.0" bad_bot
SetEnvIfNoCase User-Agent "^Mozilla/4.0 (compatible; BullsEye; Windows 95)" bad_bot
SetEnvIfNoCase User-Agent "^Crescent Internet ToolPak HTTP OLE Control v.1.0" bad_bot
SetEnvIfNoCase User-Agent "^CherryPickerSE/1.0" bad_bot
SetEnvIfNoCase User-Agent "^CherryPicker /1.0" bad_bot
SetEnvIfNoCase User-Agent "^WebBandit/3.50" bad_bot
SetEnvIfNoCase User-Agent "^NICErsPRO" bad_bot
SetEnvIfNoCase User-Agent "^Microsoft URL Control – 5.01.4511" bad_bot
SetEnvIfNoCase User-Agent "^DittoSpyder" bad_bot
SetEnvIfNoCase User-Agent "^Foobot" bad_bot
SetEnvIfNoCase User-Agent "^WebmasterWorldForumBot" bad_bot
SetEnvIfNoCase User-Agent "^SpankBot" bad_bot
SetEnvIfNoCase User-Agent "^BotALot" bad_bot
SetEnvIfNoCase User-Agent "^lwp-trivial/1.34" bad_bot
SetEnvIfNoCase User-Agent "^lwp-trivial" bad_bot
SetEnvIfNoCase User-Agent "^Wget/1.6" bad_bot
SetEnvIfNoCase User-Agent "^BunnySlippers" bad_bot
SetEnvIfNoCase User-Agent "^Microsoft URL Control – 6.00.8169" bad_bot
SetEnvIfNoCase User-Agent "^URLy Warning" bad_bot
SetEnvIfNoCase User-Agent "^Wget/1.5.3" bad_bot
SetEnvIfNoCase User-Agent "^LinkWalker" bad_bot
SetEnvIfNoCase User-Agent "^cosmos" bad_bot
SetEnvIfNoCase User-Agent "^moget" bad_bot
SetEnvIfNoCase User-Agent "^hloader" bad_bot
SetEnvIfNoCase User-Agent "^humanlinks" bad_bot
SetEnvIfNoCase User-Agent "^LinkextractorPro" bad_bot
SetEnvIfNoCase User-Agent "^Offline Explorer" bad_bot
SetEnvIfNoCase User-Agent "^Mata Hari" bad_bot
SetEnvIfNoCase User-Agent "^LexiBot" bad_bot
SetEnvIfNoCase User-Agent "^Web Image Collector" bad_bot
SetEnvIfNoCase User-Agent "^The Intraformant" bad_bot
SetEnvIfNoCase User-Agent "^True_Robot/1.0" bad_bot
SetEnvIfNoCase User-Agent "^True_Robot" bad_bot
SetEnvIfNoCase User-Agent "^BlowFish/1.0" bad_bot
SetEnvIfNoCase User-Agent "^JennyBot" bad_bot
SetEnvIfNoCase User-Agent "^MIIxpc/4.2" bad_bot
SetEnvIfNoCase User-Agent "^BuiltBotTough" bad_bot
SetEnvIfNoCase User-Agent "^ProPowerBot/2.14" bad_bot
SetEnvIfNoCase User-Agent "^BackDoorBot/1.0" bad_bot
SetEnvIfNoCase User-Agent "^toCrawl/UrlDispatcher" bad_bot
SetEnvIfNoCase User-Agent "^WebEnhancer" bad_bot
SetEnvIfNoCase User-Agent "^TightTwatBot" bad_bot
SetEnvIfNoCase User-Agent "^suzuran" bad_bot
SetEnvIfNoCase User-Agent "^VCI WebViewer VCI WebViewer Win32" bad_bot
SetEnvIfNoCase User-Agent "^VCI" bad_bot
SetEnvIfNoCase User-Agent "^Szukacz/1.4" bad_bot
SetEnvIfNoCase User-Agent "^QueryN Metasearch" bad_bot
SetEnvIfNoCase User-Agent "^Openfind data gathere" bad_bot
SetEnvIfNoCase User-Agent "^Openfind" bad_bot
SetEnvIfNoCase User-Agent "^Xenu’s Link Sleuth 1.1c" bad_bot
SetEnvIfNoCase User-Agent "^Xenu’s" bad_bot
SetEnvIfNoCase User-Agent "^Zeus" bad_bot
SetEnvIfNoCase User-Agent "^RepoMonkey Bait & Tackle/v1.01" bad_bot
SetEnvIfNoCase User-Agent "^RepoMonkey" bad_bot
SetEnvIfNoCase User-Agent "^Zeus 32297 Webster Pro V2.9 Win32" bad_bot
SetEnvIfNoCase User-Agent "^Webster Pro" bad_bot
SetEnvIfNoCase User-Agent "^EroCrawler" bad_bot
SetEnvIfNoCase User-Agent "^LinkScan/8.1a Unix" bad_bot
SetEnvIfNoCase User-Agent "^Keyword Density/0.9" bad_bot
SetEnvIfNoCase User-Agent "^Kenjin Spider" bad_bot
SetEnvIfNoCase User-Agent "^Cegbfeieh" bad_bot

 

<Limit GET POST>
order allow,deny
allow from all
Deny from env=bad_bot
</Limit>

 


Above rules are Bad bots prohibition rules have RewriteEngine On directive included however for many websites this directive is enabled directly into VirtualHost section for domain/s, if that is your case you might also remove RewriteEngine on from .htaccess and still the prohibition rules of bad bots should continue to work
Above rules are also perfectly suitable wordpress based websites / blogs in case you need to filter out obstructive spiders even though the rules would work on any website domain with mod_rewrite enabled.

Once you have implemented above rules, you will not need to restart Apache, as .htaccess will be read dynamically by each client request to Webserver

2. Testing .htaccess Bad Bots Filtering Works as Expected


In order to test the new Bad Bot filtering configuration is working properly, you have a manual and more complicated way with lynx (text browser), assuming you have shell access to a Linux / BSD / *Nix computer, or you have your own *NIX server / desktop computer running
 

Here is how:
 

 

lynx -useragent="Mozilla/5.0 (compatible; MegaIndex.ru/2.0; +http://megaindex.com/crawler)" -head -dump http://www.your-website-filtering-bad-bots.com/

 

 

Note that lynx will provide a warning such as:

Warning: User-Agent string does not contain "Lynx" or "L_y_n_x"!

Just ignore it and press enter to continue.

Two other use cases with lynx, that I historically used heavily is to pretent with Lynx, you're GoogleBot in order to see how does Google actually see your website?
 

  • Pretend with Lynx You're GoogleBot

 

lynx -useragent="Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)" -head -dump http://www.your-domain.com/

 

 

  • How to Pretend with Lynx Browser You are GoogleBot-Mobile

 

lynx -useragent="Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_1 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8B117 Safari/6531.22.7 (compatible; Googlebot-Mobile/2.1; +http://www.google.com/bot.html)" -head -dump http://www.your-domain.com/

 


Or for the lazy ones that doesn't have Linux / *Nix at disposal you can use WannaBrowser website

Wannabrowseris a web based browser emulator which gives you the ability to change the User-Agent on each website req1uest, so just set your UserAgent to any bot browser that we just filtered for example set User-Agent to CheeseBot

The .htaccess rule earier added once detecting your browser client is coming in with the prohibit browser agent will immediately filter out and you'll be unable to access the website with a message like:
 

HTTP/1.1 403 Forbidden

 

Just as I've talked a lot about Index Bots, I think it is worthy to also mention three great websites that can give you a lot of Up to Date information on exact Spiders returned user-agent, common known Bot traits as well as a a current updated list with the Bad Bots etc.

Bot and Browser Resources information user-agents, bad-bots and odd Crawlers and Bots specifics

1. botreports.com
2. user-agents.org
3. useragentapi.com

 

An updated list with robots user-agents (crawler-user-agents) is also available in github here regularly updated by Caia Almeido

There are also a third party plugin (modules) available for Website Platforms like WordPress / Joomla / Typo3 etc.

Besides the listed on these websites as well as the known Bad and Good Bots, there are perhaps a hundred of others that might end up crawling your webdsite that might or might not need  to be filtered, therefore before proceeding with any filtering steps, it is generally a good idea to monitor your  HTTPD access.log / error.log, as if you happen to somehow mistakenly filter the wrong bot this might be a reason for Website Indexing Problems.

Hope this article give you some valueable information. Enjoy ! 🙂

 

Finding top access IPs in Webserver or how to delay connects from Bots (Web Spiders) to your site to prevent connect Denial of Service

Friday, September 15th, 2017

analyze-log-files-most-visited-ips-and-find-and-stopwebsite-hammering-bot-spiders-neo-tux

If you're a sysadmin who has to deal with cracker attemps for DoS (Denial of Service) on single or multiple servers (clustered CDN or standalone) Apache Webservers, nomatter whether working for some web hosting company or just running your private run home brew web server its very useful thing to inspect Web Server log file (in Apache HTTPD case that's access.log).

Sometimes Web Server overloads and the follow up Danial of Service (DoS) affect is not caused by evil crackers (mistkenly often called hackers but by some data indexing Crawler Search Engine bots who are badly configured to aggressively crawl websites and hence causing high webserver loads flooding your servers with bad 404 or 400, 500 or other requests, just to give you an example of such obstructive bots.

1. Dealing with bad Search Indexer Bots (Spiders) with robots.txt

Just as I mentioned hackers word above I feel obliged to expose the badful lies the press and media spreading for years misconcepting in people's mind the word cracker (computer intruder) with a hacker, if you're one of those who mistakenly call security intruders hackers I recommend you read Dr. Richard Stallman's article On Hacking to get the proper understanding that hacker is an cheerful attitude of mind and spirit and a hacker could be anyone who has this kind of curious and playful mind out there. Very often hackers are computer professional, though many times they're skillful programmers, a hacker is tending to do things in a very undstandard and weird ways to make fun out of life but definitelely follow the rule of do no harm to the neighbor.

Well after the short lirical distraction above, let me continue;

Here is a short list of Search Index Crawler bots with very aggressive behaviour towards websites:

 

# mass download bots / mirroring utilities
1. webzip
2. webmirror
3. webcopy
4. netants
5. getright
6. wget
7. webcapture
8. libwww-perl
9. megaindex.ru
10. megaindex.com
11. Teleport / TeleportPro
12. Zeus
….

Note that some of the listed crawler bots are actually a mirroring clients tools (wget) etc., they're also included in the list of server hammering bots because often  websites are attempted to be mirrored by people who want to mirror content for the sake of good but perhaps these days more often mirror (duplicate) your content for the sake of stealing, this is called in Web language Content Stealing in SEO language.


I've found a very comprehensive list of Bad Bots to block on Mike's tech blog his website provided example of bad robots.txt file is mirrored as plain text file here

Below is the list of Bad Crawler Spiders taken from his site:

 

# robots.txt to prohibit bad internet search engine spiders to crawl your website
# Begin block Bad-Robots from robots.txt
User-agent: asterias
Disallow:/
User-agent: BackDoorBot/1.0
Disallow:/
User-agent: Black Hole
Disallow:/
User-agent: BlowFish/1.0
Disallow:/
User-agent: BotALot
Disallow:/
User-agent: BuiltBotTough
Disallow:/
User-agent: Bullseye/1.0
Disallow:/
User-agent: BunnySlippers
Disallow:/
User-agent: Cegbfeieh
Disallow:/
User-agent: CheeseBot
Disallow:/
User-agent: CherryPicker
Disallow:/
User-agent: CherryPickerElite/1.0
Disallow:/
User-agent: CherryPickerSE/1.0
Disallow:/
User-agent: CopyRightCheck
Disallow:/
User-agent: cosmos
Disallow:/
User-agent: Crescent
Disallow:/
User-agent: Crescent Internet ToolPak HTTP OLE Control v.1.0
Disallow:/
User-agent: DittoSpyder
Disallow:/
User-agent: EmailCollector
Disallow:/
User-agent: EmailSiphon
Disallow:/
User-agent: EmailWolf
Disallow:/
User-agent: EroCrawler
Disallow:/
User-agent: ExtractorPro
Disallow:/
User-agent: Foobot
Disallow:/
User-agent: Harvest/1.5
Disallow:/
User-agent: hloader
Disallow:/
User-agent: httplib
Disallow:/
User-agent: humanlinks
Disallow:/
User-agent: InfoNaviRobot
Disallow:/
User-agent: JennyBot
Disallow:/
User-agent: Kenjin Spider
Disallow:/
User-agent: Keyword Density/0.9
Disallow:/
User-agent: LexiBot
Disallow:/
User-agent: libWeb/clsHTTP
Disallow:/
User-agent: LinkextractorPro
Disallow:/
User-agent: LinkScan/8.1a Unix
Disallow:/
User-agent: LinkWalker
Disallow:/
User-agent: LNSpiderguy
Disallow:/
User-agent: lwp-trivial
Disallow:/
User-agent: lwp-trivial/1.34
Disallow:/
User-agent: Mata Hari
Disallow:/
User-agent: Microsoft URL Control – 5.01.4511
Disallow:/
User-agent: Microsoft URL Control – 6.00.8169
Disallow:/
User-agent: MIIxpc
Disallow:/
User-agent: MIIxpc/4.2
Disallow:/
User-agent: Mister PiX
Disallow:/
User-agent: moget
Disallow:/
User-agent: moget/2.1
Disallow:/
User-agent: mozilla/4
Disallow:/
User-agent: Mozilla/4.0 (compatible; BullsEye; Windows 95)
Disallow:/
User-agent: Mozilla/4.0 (compatible; MSIE 4.0; Windows 95)
Disallow:/
User-agent: Mozilla/4.0 (compatible; MSIE 4.0; Windows 98)
Disallow:/
User-agent: Mozilla/4.0 (compatible; MSIE 4.0; Windows NT)
Disallow:/
User-agent: Mozilla/4.0 (compatible; MSIE 4.0; Windows XP)
Disallow:/
User-agent: Mozilla/4.0 (compatible; MSIE 4.0; Windows 2000)
Disallow:/
User-agent: Mozilla/4.0 (compatible; MSIE 4.0; Windows ME)
Disallow:/
User-agent: mozilla/5
Disallow:/
User-agent: NetAnts
Disallow:/
User-agent: NICErsPRO
Disallow:/
User-agent: Offline Explorer
Disallow:/
User-agent: Openfind
Disallow:/
User-agent: Openfind data gathere
Disallow:/
User-agent: ProPowerBot/2.14
Disallow:/
User-agent: ProWebWalker
Disallow:/
User-agent: QueryN Metasearch
Disallow:/
User-agent: RepoMonkey
Disallow:/
User-agent: RepoMonkey Bait & Tackle/v1.01
Disallow:/
User-agent: RMA
Disallow:/
User-agent: SiteSnagger
Disallow:/
User-agent: SpankBot
Disallow:/
User-agent: spanner
Disallow:/
User-agent: suzuran
Disallow:/
User-agent: Szukacz/1.4
Disallow:/
User-agent: Teleport
Disallow:/
User-agent: TeleportPro
Disallow:/
User-agent: Telesoft
Disallow:/
User-agent: The Intraformant
Disallow:/
User-agent: TheNomad
Disallow:/
User-agent: TightTwatBot
Disallow:/
User-agent: Titan
Disallow:/
User-agent: toCrawl/UrlDispatcher
Disallow:/
User-agent: True_Robot
Disallow:/
User-agent: True_Robot/1.0
Disallow:/
User-agent: turingos
Disallow:/
User-agent: URLy Warning
Disallow:/
User-agent: VCI
Disallow:/
User-agent: VCI WebViewer VCI WebViewer Win32
Disallow:/
User-agent: Web Image Collector
Disallow:/
User-agent: WebAuto
Disallow:/
User-agent: WebBandit
Disallow:/
User-agent: WebBandit/3.50
Disallow:/
User-agent: WebCopier
Disallow:/
User-agent: WebEnhancer
Disallow:/
User-agent: WebmasterWorldForumBot
Disallow:/
User-agent: WebSauger
Disallow:/
User-agent: Website Quester
Disallow:/
User-agent: Webster Pro
Disallow:/
User-agent: WebStripper
Disallow:/
User-agent: WebZip
Disallow:/
User-agent: WebZip/4.0
Disallow:/
User-agent: Wget
Disallow:/
User-agent: Wget/1.5.3
Disallow:/
User-agent: Wget/1.6
Disallow:/
User-agent: WWW-Collector-E
Disallow:/
User-agent: Xenu’s
Disallow:/
User-agent: Xenu’s Link Sleuth 1.1c
Disallow:/
User-agent: Zeus
Disallow:/
User-agent: Zeus 32297 Webster Pro V2.9 Win32
Disallow:/
Crawl-delay: 20
# Begin Exclusion From Directories from robots.txt
Disallow: /cgi-bin/

Veryimportant variable among the ones passed by above robots.txt is
 

Crawl-Delay: 20

 


You might want to tune that variable a Crawl-Delay of 20 instructs all IP connects from any Web Spiders that are respecting robots.txt variables to delay crawling with 20 seconds between each and every connect client request, that is really useful for the Webserver as less connects means less CPU and Memory usage and less degraded performance put by aggressive bots crawling your site like crazy, requesting resources 10 times per second or so …

As you can conclude by the naming of some of the bots having them disabled would prevent your domain/s clients from Email harvesting Spiders and other not desired activities.


 

2. Listing IP addresses Hits / How many connects per IPs used to determine problematic server overloading a huge number of IPs connects

After saying few words about SE bots and I think it it is fair to also  mention here a number of commands, that helps the sysadmin to inspect Apache's access.log files.
Inspecting the log files regularly is really useful as the number of malicious Spider Bots and the Cracker users tends to be
raising with time, so having a good way to track the IPs that are stoning at your webserver and later prohibiting them softly to crawl either via robots.txt (not all of the Bots would respect that) or .htaccess file or as a last resort directly form firewall is really useful to know.
 

– Below command Generate a list of IPs showing how many times of the IPs connected the webserver (bear in mind that commands are designed log fields order as given by most GNU / Linux distribution + Apache default logging configuration;

 

webhosting-server:~# cd /var/log/apache2 webhosting-server:/var/log/apache2# cat access.log| awk '{print $1}' | sort | uniq -c |sort -n


Below command provides statistics info based on whole access.log file records, sometimes you will need to have analyzed just a chunk of the webserver log, lets say last 12000 IP connects, here is how:
 

webhosting-server:~# cd /var/log/apache2 webhosting-server:/var/log/apache2# tail -n 12000 access.log| awk '{print $1}' | sort | uniq -c |sort -n


You can combine above basic bash shell parser commands with the watch command to have a top like refresh statistics every few updated refreshing IP statistics of most active customers on your websites.

Here is an example:

 

webhosting-server:~# watch "cat access.log| awk '{print $1}' | sort | uniq -c |sort -n";

 


Once you have the top connect IPs if you have a some IP connecting with lets say 8000-10000 thousand times in a really short interval of time 20-30 minues or so. Hence it is a good idea to investigate further where is this IP originating from and if it is some malicious Denial of Service, filter it out either in Firewall (with iptables rules) or ask your ISP or webhosting to do you a favour and drop all the incoming traffic from that IP.

Here is how to investigate a bit more about a server stoner IP;
Lets assume that you found IP: 176.9.50.244 to be having too many connects to your webserver:
 

webhosting-server:~# grep -i 176.9.50.244 /var/log/apache2/access.log|tail -n 1
176.9.50.244 – – [12/Sep/2017:07:42:13 +0300] "GET / HTTP/1.1" 403 371 "-" "Mozilla/5.0 (compatible; MegaIndex.ru/2.0; +http://megaindex.com/crawler)"

 

webhosting-server:~# host 176.9.50.244
244.50.9.176.in-addr.arpa domain name pointer static.244.50.9.176.clients.your-server.de.

 

webhosting-server:~# whois 176.9.50.244|less

 

The outout you will get would be something like:

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See http://www.ripe.net/db/support/db-terms-conditions.pdf

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to '176.9.50.224 – 176.9.50.255'

% Abuse contact for '176.9.50.224 – 176.9.50.255' is 'abuse@hetzner.de'

inetnum:        176.9.50.224 – 176.9.50.255
netname:        HETZNER-RZ15
descr:          Hetzner Online GmbH
descr:          Datacenter 15
country:        DE
admin-c:        HOAC1-RIPE
tech-c:         HOAC1-RIPE
status:         ASSIGNED PA
mnt-by:         HOS-GUN
mnt-lower:      HOS-GUN
mnt-routes:     HOS-GUN
created:        2012-03-12T09:45:54Z
last-modified:  2015-08-10T09:29:53Z
source:         RIPE

role:           Hetzner Online GmbH – Contact Role
address:        Hetzner Online GmbH
address:        Industriestrasse 25
address:        D-91710 Gunzenhausen
address:        Germany
phone:          +49 9831 505-0
fax-no:         +49 9831 505-3
abuse-mailbox:  abuse@hetzner.de
remarks:        *************************************************
remarks:        * For spam/abuse/security issues please contact *
remarks:        * abuse@hetzner.de, not this address. *
remarks:        * The contents of your abuse email will be *
remarks:        * forwarded directly on to our client for *
….


3. Generate list of directories and files that are most called by clients
 

webhosting-server:~# cd /var/log/apache2; webhosting-server:/var/log/apache2# awk '{print $7}' access.log|cut -d? -f1|sort|uniq -c|sort -nk1|tail -n10

( take in consideration that this info is provided only on current records from /var/log/apache2/ and is short term for long term statistics you have to merge all existing gzipped /var/log/apache2/access.log.*.gz )

To merge all the old gzipped files into one single file and later use above shown command to analyize run:

 

cd /var/log/apache2/
cp -rpf *access.log*.gz apache-gzipped/
cd apache-gzipped
for i in $(ls -1 *access*.log.*.gz); do gzip -d $i; done
rm -f *.log.gz;
for i in $(ls -1 *|grep -v access_log_complete); do cat $i >> access_log_complete; done


Though the accent of above article is Apache Webserver log analyzing, the given command examples can easily be recrafted to work properly on other Web Servers LigHTTPD, Nginx etc.

Above commands are about to put a higher load to your server during execution, so on busy servers it is a better idea, to first go and synchronize the access.log files to another less loaded servers in most small and midsized companies this is being done by a periodic synchronization of the logs to the log server used usually only to store log various files and later used to do various analysis our run analyse software such as Awstats, Webalizer, Piwik, Go Access etc.

Worthy to mention one great text console must have Apache tool that should be mentioned to analyze in real time for the lazy ones to type so much is Apache-top but those script will be not installed on most webhosting servers and VPS-es, so if you don't happen to own a self-hosted dedicated server / have webhosting company etc. – (have root admin access on server), but have an ordinary server account you can use above commands to get an overall picture of abusive webserver IPs.

logstalgia-visual-loganalyzer-in-reali-time-windows-linux-mac
 

If you have a Linux with a desktop GUI environment and have somehow mounted remotely the weblog server partition another really awesome way to visualize in real time the connect requests to  web server Apache / Nginx etc. is with Logstalgia

Well that's all folks, I hope that article learned you something new. Enjoy

Thanks for article neo-tux picture to segarkshtri.com.np)

Play the Dangerous Dave old arcade classic on iPhone, iPad and Android Smartphone – Dangerous Dave 1990’s computer arcade classic Mario like game phone Application

Thursday, April 27th, 2017

Dangerous_Dave_1990-entry-game-screen-computer-mario-like-game

I still remember the good old times with my 16 Bit Desktop Personal Computer Parvetz 8086 CPU where one of the most favourite games I used to play a computer substitute for Mario for DOS operation system was Dangerous Dave 2 (DDAVE.EXE) an arcade game classic game from the distant year 1990 authored by a whiz kid which later become world famous Computer game Programmer John Romero mostly known for being a cofounder of Game creation comppany ID Software  which authored the 3D Shooter genesis classics such as Wolfenstein 3D, Spear of Destiny, DOOM I and DOOM II HeXen I / II, QUAKE I,  QUAKE II, QUAKE II as well as some absolute arcade classics as Commander Keen 4 🙂

As John Romero shared himsef the game is actually inspired by Super Mario Bros so he decided to create a kinda of computer remake of the game in his teenage years and he did a great job yeah 🙂

There are similarities between Super Mario and Dangerous Dave as both have  the secret levels, the level design, the monsters, and the jump all around collecting cups with a final aim to end up in the level exit door.

The game was originally developed for Apple II and later reworked and ported to DOS and because of it is immerse popularity Dave 2, 3 and 4 come out short

The game is really awesome and worths all praise, I was nicely surprised to find out Dangerous Dave amazing game is available for Iphone 5, 5S and Iphone 6 right into Appstore

Here is the awesome Dangerous DAVE Iphone port description:

"Dave is a redneck on a rampage to reclaim his stolen trophies from the town bully, Clyde! Dangerous Dave is back in his classic adventure in the Deserted Pirate's Hideout. This recreation of the original 1990 DOS game is just as action-packed and difficult as the original! There are only 10 levels, but, wow, are they hard. "

Dangerous_Dave-level-2-computer-Mario-like-old-arcade-game-classic

I have to say the game controls are pretty much amazing and the game controls even though reimplemented on the Iphone touch screen device are truly amazing so gameplay resembles pretty much the Computer original game keyboard controls and in a sense the touch screen controls are a little bit more convenient.

The iOS Dave port is pretty nice and updated version is also available which is possible to be chosen on Game entry screen so you either play classic mode or you play the Dave in the Deserted pirated hideout updated version and sound Dave remake, below is a screenshot of the updated GUI version:

Dangerous_Dave-in-the-deserted-pirate-hideout-updated-dave-gui-mario-like-computer-arcade-classic-game

Dave in the deserted pirate hideout Updated GUI shot by Alfonso Romero – level 1

Dangerous_Dave_mario-like-computer-classic-arcade-jump-and-run-ios-dave-in-the-deserted-pirates-hideout

Dave in the deserted pirate hideout Updated GUI shot by Alfonso Romero – level 2

Dangerous_Dave_Computer_like_Mario-high-level-computer-classic-arcade==

Actually Dangerous Dave is also available for Android Smartphone devices even though the controllers suck a lot compared to the Iphone version if you happen to own an Android OS phone check here 

For those who don't own an Iphone or Android SmartPhone (lucky you) you can also play Dangerous Dave online via DOSBox Web emulation from this URL

Dangerous_Dave-computer-classic-game-now-for-iphone-level5-screenshot

For those who prefer to play Dangerous Dave as a standalone desktop application as in the good old times on Windows 7 / 8, 8.1 and Windows 10 both on 32 and 64 bits platform you can download it (as of moment of writting article) from here

A mirrored version of Dangerous Dave for Windows 7/8/10 on pc-freak.net in case if it disappears in future check here.

Our generation people born in 1983-1986 who are now about 33 years old has grown up with this game and I'm pretty sure if you happen to be one of those people will truly enjoy to replay the quick 10 game levels and remind the fuzzy computer arcade games age when every growing kid like me was obsessed with the idea to play and complete as much as games possible with countless nights in front of the Green and Black screen and later on SVGA screens geeking on and on loosing idea of time and space and being completely sunk by the game.

Dangerous_Dave_Level-9-classic-old-school-arcade-mario-like-game

Happy gaming ! 🙂

Some standard software programs to install on Windows to make your Windows feel more like a Linux / Unix Desktop host

Friday, March 17th, 2017

linux-freebsd-unix-migration-to-windows-some-useful-customizations-and-program-softwares-to-install-to-make-your-windows-feel-like-more-linux-and-bsd-unix

If you're Windows user like me with a Linux / FreeBSD / OpenBSD / NetBSD – a dedicated Unix user and end up working for financial reasons in some TOP 100 Fortune companies (CSC, SAP, IBM, Hewlett Packard,Enterprise, Oracle) etc.  and forced for business purposes (cause some programs such as Skype for Business Desktop Share does not run fine on Unix like and thus you have to work notebook pre-installed with Windows 7 / 8 or 10 but you're so accustomed to customizations already from UNIX environments and you would like to create yourself the Windows to resemble Linux and probably customize much of how Windows behaves by default.

Here is what I personally did on my work Windows 7 Enterprise on my HP Elitebook notebook to give myself the extra things I'm used to my Debian Linux Desktop.


1. Downloaded and instaled standard gnome-terminal xterm like immediately (E.g. check MobaXterm great alternative to Putty),
2. Changed cutomize Windows 7 appearance to be more like classical Windows XP,  change Windows 8 / 10 start menu appearance to be more like in classic Windows 2000
3. Installed following bunch of softwares

  • VIM Text Editor for Windows
  • Thunderbird Mail Client
  • OpenVPN client
  • Oracle VM Virtualbox
  • Opera
  • Mozilla Firefox
  • Password Safe
  • Ext2FS / Ext3FS (support programs)
  • F.lux (to auto adjust screen brightness day and night for better sleep)
  • install ActivePerl for Windows
  • Install GNUWin Tools (and perhaps most importantly)
  • CygWin,  (to provide Windows with most needed console Linux tools), Clink.
  • WinSCP
  • Swish (to be able to remotely mount your Linux partitions and see them as local Windows drives)
  • dosbox (to play some of the good old Dos games :))
  • Windirstat (to easily check the size of complete directory and subdirectories)
  • SpaceSniffer (to be able to see which directory or files are taking the most space on the system)


Along with all above goodies here is also some good software I find essential for every web developer / system administrator / network administrator or java,  C, php pprogrammer out there that's using Windows as his Desktop platrofm.

Another thing I prefer  on Windows 7 when used as workstation is to change the default Windows 7 LogonUI screen background as well check out how here

Perhaps there is plenty of other goodprograms to install on Windows to make it feel even more like a Linux / Unix Desktop host, if you happen to somehow stuck to this article and you've migrated from Llinux / BSD desktop to Windows for work purposes please share with me any other goodies you happen to use that is from *Unix.

Windows missing volume control on Windows 7, 8 Fix / How to run volume control from command line

Thursday, March 9th, 2017

windows-7-missing-volume-controller-bring-back-volume-control-windows-7-command-to-show-volume-control-on-windows-os

 

Windows 7/8 Volume Icon disappear from Taskbar?

If you are using  Windows 7 or  Windows 8 Operating System inside a corporate network and your notebook PC is inside domain controller controlled by some crazy administrators who for some reason decided to remove the Taskbar from your Taskbar tray you have come over to exactly same situation like I do here.

Actually some might have experienced an icon "combined" feature which gives the opportunity of some of the standard Tray icons we know since Windows 98 / XP onwards to not show full time in order to save you space. No doubt this feature is great one to use as it is distracting sometimes to have a tons of applications constantly keeping in the Taskbar (right down corner) however if the Active Domain admin did it without any notification and you're a kind of victim you might dislike especially since this behaviour is making you impossible to easily control your phone / headspeakers and mic.

 

windows-7-8-grouped-taskbar-icons-screenshot-volume-dialog-bar

If you check in the Control Panel and click on Sounds  menu in Windows 7/8, you don't see any checkbox for adding the icon back as I have assumed, , but instead all the audio there you can only see the inputs and outputs on your system general settings.

windows-7-8-control-panel-sounds-dialog-box-properties

This behavior was made on purpose and makes sense cauze the taskbar icons since Win XP (if not mistaken) has to be controlled by the taskbar settings pan.

Thus in order to bring back the disappeared icon on  Winblows 7 / Win 8 there is a taskbar properties feature enabling to to hide or view the various taskbar running apps in that number the Volume icon, hence to bring back your Volme Control speaker icon to taskbar you need to customize it.

To do so do a mouse Right-click anywhere on the taskbar and choose Properties.

taskbar-properties-windows-7-8-dialog

Now, click on the Customize button under Notification area.

taskbar-and-startmenu-menu-properties-customize-taskbar-dialog-bar

In  Notification Area Icons dialog box, there is 2 ticks to check. Assure yourself the volume icon default behavior is set to

Show icon and notifications like in below screenshot

show-icon-notifications-volume-bar-windows-7-8-dialog

To make the new behaviour active click on Turn system icons on or off.

turn-system-icons-on-off-windows-7-8-notification-restore-default-icon-behavior-dialog

One thing to note here is the volume icon shoukld be set to On like in below| shot:

 

turn-system-icons-on-off-volume-icon-on-windows-7-8
If the reason for the disapperance of the Volume controller in task is not due to Domain Controllear policty it could happen due to late updates pushed by Microsoft if the PC needs a restart or after computer Log off operation.
Another reason for the casual disappearance of sound box could be also a buggy driver, so if the icon keeps disappearing over and over again, you better try to update the driver for your sound card.

However if you end up in a Windows Domain Controller (AD) Policy that is prohibiting the Sound Voulme to appear on your taskbar like in my case all the above won't help you solve it, but luckily there is an easy way to invoke the Volume Control dialog box via

 

sndvol.exe

 

the command will bring up the Volume Control as in upper left corner of screen like in below screenshot:

windows-volume-mixer-taskbar-windows-7-8-shot

 

If you to show it with a silder use -f flag

sndvol.exe -f

Running just

sndvol.exe


opens the volume mixer, as you noted.

 

On windows XP the respective command to open a missing Volume Control dialog in taskbar, use instead:

sndvol32

command from Windows Command Prompt:

 

Start -> Run -> cmd.exe

 

sndvol32

no params to display master volume window

 

 

sndvol32 -x

to display small master volume window

sndvol32 -t

to display volume control only (as per sound icon)

If you have the Volume Controller behavior to be hidden or you need to view any other taskbar hidden application icon  it will be useful for you to use:

AutoHotKey Win+B to focus on the system tray, Left (arrow) to highlight the Volume Control icon icon, and then Enter to bring up the popup.

 

A good tip you might be interestted to use occasionally is  how to show the current Wireless networks via a command (if that's prohibited otherwise via GUI) so you can easily see the  Connected Networks on Windows using cmd:

rundll32 van.dll,RunVAN