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...
The method of configuring IP address on Ubuntu 18.04 LTS is significantly different than the older methods. Unlike the previous versions, the Ubuntu 18.04 uses Netplan utility. It is a new command line network configuration...
It is quite easy to change the text font type and its size if you have graphical desktop environment. How would you do that in an Ubuntu headless server that doesn’t have a graphical environment?...
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 brief guide explains how to type Indian Rupee sign in Unix-like operating systems. The other day, I wanted to type “Indian Rupee Sign (₹)”. My keyboard has rupee symbol on it, but I didn’t...
There are plenty of tools available to find hardware specifications on Linux systems. Here, I have listed four most commonly used tools to get almost all hardware (and software) details of a Linux system. Good...
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...
