Category Archives: Linux

You got to love Linux. Not only that it is free, but it is also very strong, stable, and widely used.

A Linux primer: identifying your distro and other commands that work everywhere

Posted on January 24, 2012 by ronaldpringadi

Here are a few commands you can use to find out which Linux distribution you’re on — pick whichever your system has: 1234567cat /etc/issue cat /proc/version dmesg | head -1 cat /etc/*-release Of those, cat /etc/*-release is the most reliable … Continue reading →

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How to Set up an FTP Server in Ubuntu Linux

Posted on January 18, 2012 by ronaldpringadi

Login to your Linux shell menu as root 12[root@locahost]# apt-get install vsftpd [root@locahost]# vim /etc/vsftpd.conf At VIM, 1st comment out anonymous_enable by adding a # sign at the beginning of the line # anonymous_enable=YES 2nd remove comment at local enable … Continue reading →

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Adding color to your tail

Posted on December 22, 2011 by ronaldpringadi

Tail is a very useful tool for monitoring an error stream. Sometimes the output from tail can have too much information, and its black-and-white monotone output can be hard to follow with the eyes. The basic: a Linux terminal has … Continue reading →

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An nmap primer: scanning ports, fingerprinting hosts, and staying legal

Posted on October 6, 2011 by ronaldpringadi

If you just want a quick look at what’s listening on a Linux machine, the one-liner is: 1nmap -sS -O 127.0.0.1 That’s an nmap SYN scan with OS detection against your own loopback interface. If you’ve never used nmap before, … Continue reading →

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Find Files in Linux by Name

Posted on September 13, 2011 by ronaldpringadi

To find files in Linux with a certain name portion or pattern we can issue a locate command. If locate is unable to find a matching file, then you might need to update your file index database. 12# locate journal-2011-07 … Continue reading →

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Finding a String Inside Multiple Files in Linux

Posted on August 25, 2011 by ronaldpringadi

This is how you can find a text/string Proudly inside folder /var/www. The -H parameter is to show the filename and -R is to make grep look recursively. 1grep -H -R "Proudly" /var/www

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Fix Microsoft Mouse in Linux Ubuntu

Posted on August 24, 2011 by ronaldpringadi

123456789101112nano /etc/X11/xorg.conf Section "InputDevice" Identifier "Configured Mouse" Driver "mouse" Option "CorePointer" # Option "Device" "/dev/input/mice" Option "Protocol" "ExplorerPS/2" Option "Emulate3Buttons" "false" Option "ZAxisMapping" "4 5" Option "ButtonMapping" "1 2 3 6 7" EndSection

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Colorize Linux Shell Menu

Posted on August 24, 2011 by ronaldpringadi

Do you ever feel like you’re going blind because the prompt text color and the result text color are the same? Here’s how to colorize your shell prompt. Open your favorite text editor (vim or nano), edit your ~/.bashrc, and … Continue reading →

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Edit default Gnome-Terminal

Posted on August 24, 2011 by ronaldpringadi

Every time I open a shell terminal in my Ubuntu, I always think that the window size is too small. I always ended up resizing the shell window manually using the mouse. If you’re having this problem here is how … Continue reading →

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Add an Existing User to an Existing Group on Linux

Posted on August 24, 2011 by ronaldpringadi

1usermod -a -G GROUPNAME USERNAME

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