Some Internet service providers and corporate companies might have blocked most of the ports, and allowed only a few specific ports such as port 80 and 443 to tighten their security. In such cases, we have...
Today, I tried to update the repository lists in my Ubuntu 18.04 LTS desktop and got an error that says – E: The package cache file is corrupted, it has the wrong hash. Here is...
I use Oracle VirtualBox to test various Linux and Unix distributions. I’ve tested hundred of virtual machines in VirtualBox so far. Today, I started Ubuntu 18.04 server VM in my Ubuntu 18.04 desktop and I...
For those who don’t know, there are hundreds of spoken languages in India and 22 languages are listed as official languages in Indian constitution. I am not a native English speaker, so I often use...
This guide explains how to find the Linux distribution name, version and Kernel details. If your Linux system has GUI mode, you can find these details easily from the System’s Settings. But in CLI mode,...
You might have set up cron jobs that runs at a specific time to backup important files or perform any system related tasks. Or, you might have configured a log server to rotate the logs...
You just downloaded an ISO image of your favorite Linux distribution from the official site or a third party site, now what? Create bootable medium and start installing the OS? No, wait. Before start using...
Taking screenshots is part of my work. I take a lot of screenshots daily to use them in my guides. The other day, I had to screenshot the right-click context menu while writing a guide...
The other day, I was collecting reference notes for Linux package managers on various online sources. When I tried to create a text file to save those notes, I noticed that the ‘New document’ option...
Have you ever been in a situation where you wanted to magnify a particular portion of your screen? If you’re a graphic designer, you might be definitely in this situation often. Please note that I...
