Author Archives: Ahmed Tawfik

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About Ahmed Tawfik

Cybersecurity Professional, Systems Engineer, OSS & Linux Geek

How to change your network MAC address on Ubuntu

Posted on December 28, 2009 by Ahmed Tawfik

“sudo ifconfig eth0 down” #bring down the network card“sudo ifconfig eth0 inet hw ether xx:xx:xx:xx:xx:xx up” #change the MAC and bring it back up where “eth0” is the network adapter you wish to change its MAC and “xx:xx:xx:xx:xx:xx” is the … Continue reading →

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An Excellent Solution to websites that don’t save the username and password

Posted on December 27, 2009 by Ahmed Tawfik

A very nice tutorial that I read here,and it then led me to here, it’s a Javascript script that enables Firefox to remember usernames and passwords for some websites that orders the browser not to remember it, and I LOVE … Continue reading →

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How to connect using Mobinil 3G Modem in Egypt, Solution to a problem in Ubuntu’s default configuration

Posted on December 22, 2009 by Ahmed Tawfik

If you create a profile in 3G connections in Ubuntu (I’m currently using version 9.04), you will be able to connect but you won’t be able to reach any website, that’s because of a glitch in the default configuration for … Continue reading →

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Backup and Restore ext4 filesystem using fsarchiver

Posted on December 19, 2009 by Ahmed Tawfik

Important Note: Until the time of writing this article, “partimage” DOESN’T SUPPORT EXT4, it detects ext4 as ext3 and then displays an error message saying “can’t read bitmap block 0 from image“, so if you use something like the bootable … Continue reading →

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UNetbootin: Burn any ISO or image files to USB Disk on Linux

Posted on December 17, 2009 by Ahmed Tawfik

Go to the following URL: http://unetbootin.sourceforge.net/ and download the file Make the file executable (chmod +x file_name) This step is specific for Ubuntu: If you receive the message “7z not found ….”, open a terminal and run “sudo apt-get install … Continue reading →

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