As System Administrators for Linux sometimes we can face situations when we will need to change certain kernel parameters without restarting the server.
To keep our Linux operating system we need to install security updates and upgrade packages, there are few ways we can keep our system up to date.
To troubleshoot problems inside the Linux operating system we need to know where the logs file are stored and how to read them.
Linux offers us an easy way to boot into different operating systems installed on one machine, and we can achieve this by using the bootloader menu, let’s see how.
We can boot or change operating modes on our Linux desktop or server to do different things. Let us learn how.
As Linux administrator we need to know how to change system state, like reboot or shutdown. There is few command which we can use to do just that.
LFCS Admin Exam preparation guide series, main page can be found here. This post is part of Essential Commands from the domain competency list for the exam. The full list […]
We do not have to remember all the commands in the Linux operating system and how to use them, we have a lot of help inside Linux from man and info pages as well as command help option. Let us learn how to use them
User root is the most powerful account in almost if not all Linux Operating systems, let us learn how we can control access to the root account
As System Administrator for Linux Server we will be task with changing permissions and ownership of the files, let us learn how we can do that.