Linux System Administration

If you are working on a small to medium entreprise network, you probably have dozens of drives and printers that need to be shared. Besides the NFS protocol, there are…

As a system administrator, you are probably monitoring the disk space on your system all the time. When browsing directories on your server, you might have come across directories with…

When working with Bash and shell scripting, you might need to use conditions in your script. In programming, conditions are crucial : they are used to assert whether some conditions…

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…

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…