Linux and Unix, Open Source, Linux Howtos
Disk space on Linux can be expanded by adding a new LUN or resizing an existing LUN on the system. In most cases, the online resizing of the multipath device …
How to Resize an Online Multipath Device on Linux Read More
systemd is a system and service manager for Linux operating systems. When you install any application from a repository, it will drop a service unit file into the systemd directory …
How to create a systemd service unit file in Linux Read More
systemd is the default system manager in most of the major Linux distributions, which comes with a new logging daemon called ‘journald’. For many years, system and kernel logs in …
How to use journalctl to analyze logs in Linux Read More
‘usermod’ & ‘passwd’ commands are used to lock or unlock one user account at a time, but you may need to write some small shell scripts to perform this action …
How to lock & unlock multiple users in Linux Read More
PDF stands for Portable Document Format which is widely used among general users for documentation purpose and its usage is primarily for printing, sharing and for large documents. By default, …
The simplest way to edit PDF files in Linux Read More
SSH Secure Shell is an encryption network protocol that provides secure encrypted communications between two hosts. It allows you to connect to a remote machine securely over an insecure network. …
How to Automatically Accept SSH Key Fingerprint Read More
Linux has many GUI applications for viewing images. But have you ever tried a CLI application to view them or do you know if one exists? Fortunately, while working with …
How to view images from Linux terminal Read More
Do you often manipulate images as part of your daily job? I personally do the graphics work for this website before uploading it to my blog. One of the most …
How to Resize Images with Right Click on GNOME Desktop Read More
Some time ago we wrote an article about removing the PPA repository from the Ubuntu system. The PPA repository keys will not be removed as part of removing the PPA …
How to List and Remove a GPG key in Ubuntu Read More
If a device is no longer needed by LVM, you can use the ‘vgreduce’ command to remove that physical volume from it’s volume group. The ‘vgreduce’ command shrinks the capacity …
How to Remove Physical Volume from a Volume Group in LVM Read More