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C Programming

What is C?

C is a programming language, it is a method of communicating with a computer. C is a particularly flexible language and has been used for micro-controllers, operating systems, applications and graphics programming. An improved C language called C++ has been invented and it does lots of things you don’t know about like calling constructors and […]

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Server

SSH: What is SSH (Secure Shell)?

SSH Background SSH, secure shell, is a software based approach to network security. All data sent and received using SSH is encrypted and later decrypted. It has a client-server architecture, so you will need an ssh client on your local computer and an ssh on the remote computer (the computer you want to connect to). […]

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Server

install GeoIp on Debian Wheezy Call to undefined function geoip_db_avail

You have not Installed GEO IP: Steps(Debian Wheezy Specific): 1. aptitude install libgeoip-dev php5-geoip php5-geo 2. aptitude install php5-dev 3. pecl install geoip 4. cd /etc/php/apache2 5. rmate php.ini 6. Add to ectensions 7. extension=geoip.so modified from: IT Knowledge Base

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Server

Command Not Found…All of a sudden a command is not Found!

Command Not Found: You’ve been having a good day up till now When you type a common command in unix, it could be ls or last or who or grep or in my case rmate when low and behold, a response: bash: Command not Found This is very annoying and is often the case where […]