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Interesting dig command examples (Linux)

The command dig is a very useful tool to do DNS lookups on the command line on Linux. The host and nslookup commands produce equivalent output, but in a different format. The dig output is more detailed with several statistics about the command outputted. In this tutorial, I will illustrate using examples on how to [...]


Linux log files explained – /var/log/

Linux has an extensive set of log files under the /var/log directory. This directory is the central place where all applications and programs put their log files. Most log files are text files that can be viewed using a standard text editor like vi or nano. To check which log files you have, just do [...]


Linux find command tutorial with examples

The Linux find command is one of the most useful commands in the arsenal of a system administrator. The find command is very versatile and it takes an innumerable amount of arguments that makes this Linux command very powerful. The find command is available on any flavor of Unix based systems like Linux, CentOS, Debian, [...]


Linux Permissions and chmod Tutorial

Linux is based on the Unix operating system which has a very elaborate set of permissions handling. The three types of permissions in Linux are based on the concept of the owner, the group and the world. Each of the three have read, write and execute permissions. Let's look at an example directory listing: Type [...]