This guide explains how to disable SSH password authentication for specific user or group in Linux and Unix operating systems. Please note that this will not entirely disable SSH access to users or a group....
One of our reader faced this error while installing Katoolin3 – gpg: keyserver receive failed: No dirmngr. This error occurs because of missing dirmngr. For those wondering, dirmngr is a server for managing and downloading certificate...
Have you ever wanted to create a directory or file and name it the current date/time/month/year from command line in Linux? This brief tutorial will teach you how to create a directory or file with...
Let’s imagine this. You setup a LAMP or LEMP stack with MySQL 8. After a few days, you forgot the MySQL root user password. You vaguely remember the password and you try different combinations of...
I came across an interesting discussion thread on Twitter. It is about an Interview question. The question is – What do you do if the executable permission of Chmod command is removed accidentally? As you...
Picture this scenario. You’ve installed some Debian packages on your system. And you want to install the same packages on another system. But you lost the binary archives i.e. the deb files. Would you download...
Have you ever been in a situation where you wanted to SSH to a remote server and immediately cd into a directory? Yes? Well, you’re on the right track! This brief tutorial describes how to...
Today, I tried to SSH into my remote Ubuntu 20.04 LTS server and encountered with this message – WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!. $ ssh [email protected] Sample output: @ @ @ @ @ @...
A log file usually contains a set of system events or records. The system administrator can analyze and investigate the log files to know what’s really going on in a Linux system. The log files...
Yesterday I was trying to create multiboot USB drive with Ventoy in my Linux system. After successfully created the bootable drive, I added different ISOs to the bootable drive. But the problem is I had...
