I have a Ubuntu 18.04 LTS virtual machine which I use for testing purposes. Whenever I start this VM and try update or install any application using APT package manager, I get the following error:...
As you may already know, Canonical, the Parent company of Ubuntu, releases new versions of Ubuntu desktop and server editions every six months (in April and October). And every two year, the Ubuntu edition released...
Docker Compose is a tool for defining and running multi-container docker applications. With Compose, we use a YAML file to configure our application’s services. And then we create and start all the services from the...
A while ago we have shown you how to install software in any offline Ubuntu system and any offline Arch Linux system. Today, we will see how to fully update and upgrade offline Debian-based systems....
The other day I was testing alias and unalias commands on my Ubuntu 18.04 desktop. I wanted to refer all available arguments, flags and options of the alias command, so I opened the man page....
What is Soft Link And Hard Link In Linux? A symbolic or soft link is an actual link to the original file, whereas a hard link is a mirror copy of the original file. If you...
There are many tools available to create bootable USB drive on Linux. We have already reviewed a few such tools, namely Etcher, Bootiso, and MultiCD. If you don’t want to use these third-party tools, there...
As you probably know, GRUB2 is default boot loader for most Linux operating systems. GRUB stands for GRand Unified Bootloader. GRUB boot loader is the first program that runs when the computer starts. It is responsible...
VnStat is a free, open source, light-weight, and console-based Network Traffic monitor. Using this tool, we can easily find how much network bandwidth is consumed and display the result hourly, daily, monthly, or for specific...
Configuring IP address is one of the mandatory skill that every Linux and Unix administrator should learn. We can easily configure IP address in GUI mode. But it is entirely different in Command line mode....
