How To Manage Log Files Using Logrotate In Linux
A few days ago, we have published a guide that described how to setup centralized Rsyslog server on CentOS system. Today, in this guide, we are going to see how to manage log files using...
Category: Tips and Tricks
How To Find Who Rebooted The Linux System
This brief guide explains how to find who rebooted the Linux system. This trick can be useful for those who are managing a shared server that has many users. To find out who rebooted your...
How To Password Protect GRUB Bootloader In Linux
You might have heard about this old adage – “boot access==root access”. It is indeed true! Any one who can access the boot loader can easily get the root access to your system. We already...
How To Find Who Is Logged On Your System And What They Are Doing
If you’re managing a multi-user server, you might often need to find who is logged on your system and what they are doing. In Unix-like systems, there is single letter command called ‘w’, which is...
How To Reset Ubuntu To Factory Defaults
Today, I have stumbled upon an interesting and useful tool called Resetter, which is used to reset Ubuntu to factory defaults. That means, your Ubuntu system will go back to the state when you installed...
How To List Installed Packages That Belong To A Particular Group In Linux
A while ago, we have published an article that described how to find installed applications with installed size in Linux. Today, we will see how to list the installed packages that belong to a particular...
An Easy Way to Protect Files From Accidental Deletion In Linux
A while ago, we have published an article that described how to use chattr command to prevent files and folders from accidental deletion in Unix-like operating systems. Today, in this guide, we will do the...
How To Monitor User Activity In Linux
As a Linux administrator, you need to keep track of all users’ activities. It will be helpful when something went wrong in the server. You can analyze and investigate the users’ activities, and try to...
How To Change The Priority Of A Process In Linux
In Unix ecosystem, a process is a running program. So, any program running on your Linux box is a process. One or more processes can be running on your Linux box at a time. We...
How To Remove All Files In A Folder Except One Specific File In Linux
Let us say you have 100+ files in a folder. You want to delete all of them except one or few specific files. How would you do it? You can copy the files you wanted...
