As a system administrator, you probably know how important environment variables are in Bash. Environment variables are used to define variables that will have an impact on how programs will…

Chown is a command on Linux that is used in order to change the owner of a set of files or directories. Chown comes with multiple options and it is…

Pinging ports is one of the most effective troubleshooting technique in order to see if a service is alive or not. Used by system administrators on a daily basis, the…

As a network administrator, you probably know how costly routers can be. If you are configuring a complex network architecture, you might need Cisco or Netgear routers, as they embed…

In our previous tutorials, we have seen that implementing LVM volumes can be very beneficial in order to manage space on your host. The Logical Volume Management layer exposes an…

If you are working in a medium to large company, you are probably interacting on a daily basis with LDAP. Whether this is on a Windows domain controller, or on…

When working on a project, you are probably managing many different branches in your repository. As the number of branches grow, you may need to work on different tasks in…

From all the compression methods available, Zip is probably one of the most popular ones. Released in 1989 by Philip Katz, Zip is widely used by system administrators in order…