Linux and Unix, Open Source, Linux Howtos
Reducing/Shrinking a logical volume is a high risk of data corruption, so try to avoid this situation as much as possible. But, sometimes we may need to do it if …
How to Reduce LVM Partition Size in Linux Read More
Extending the LVM partition is extremely easy, it takes very few steps and can be done online without unmounting a logical volume. The main purpose of LVM is flexible disk …
How to Extend Logical Volume (LVM) in Linux Read More
root user is a privileged user in Linux, which is similar to an administrator in Windows. All kind of administrative operations can be performed using root user privilege hence it …
How to become a ‘root user’ in Linux? Read More
Generally, a file system must be mounted on a Linux system to access the contents. When adding a new disk to your system, you may need to use the fdisk …
How to Mount and Unmount File System in Linux Read More
Link is a mechanism of creating a shortcut to the original file or directory which contains information about its files or directories. What is Soft link? A symbolic link, also …
Difference between Soft link vs Hard link Read More
You may have missed to delete some files that are no longer needed on your computer in some directory. It could be either in “Download” or any other directory that …
How to Remove files older than ‘N’ days using Tmpwatch/Tmpreaper on Linux Read More
Single user mode, also referred to as maintenance mode, allows a single super user to recover/repair the system problems. Generally, these problems cannot be solved in a multi-user environment. The …
How to Boot into Single User Mode in CentOS/RHEL 7/8 Read More
If you enabled a password policy on Linux, the password must be changed before it expires, otherwise you will be notified to change the password upon login until the password …
How to check user password expiration date in Linux Read More
Ansible is an excellent configuration management and orchestration tool. It is designed to easily automate the entire infrastructure. We have written three articles in the past about Ansible. If you …
Ansible Roles Quick Start Guide with Examples Read More
We have already written two articles about Ansible, this is the third article. If you are new to Ansible, I advise you to read the two topics below, which will …
Ansible Playbooks Quick Start Guide with Examples Read More