Switching users with the su command
The su command in Unix-like operating systems, including Linux, is used to switch to another user account … Read more
Linux Host, Ubuntu, SysAdmin
ssh-add – Could not open a connection to your authentication agent
When working with gitlab, to push our source code server we need to add the SSH key … Read more
Linux Command “Top”: Understanding and Using the System Monitoring Tool
Linux is a powerful operating system known for its stability, security, and customization options. One of the … Read more
How to sign kernel module on UEFI Secure boot enabled Ubuntu ?
Secure boot requires each an every operating system software to be signed with unique key to build … Read more
Fixed : openssl/opensslv.h: No such file or directory
When trying to compile some packages / libraries or application source codes in Linux which are based … Read more
How to Install 7Zip on Ubuntu Linux ?
7-Zip is a file archiver with a high compression ratio. Using 7 zip we can compress the directory … Read more
How to Compress files using 7z in Linux ?
7-Zip is a file archiver with a high compression ratio. Using 7 zip we can compress the directory … Read more
What is my Public IP Address ?
Every machine which is connected to internet gets assigned with one unique IP address till it remains … Read more
How to Check IP Address, Network Interface details in Linux ?
If you want to know the IP address and currently active network interfaces on Linux, we need … Read more
Solved: “is not in the sudoers file. This incident will be reported”
When we created a new user using “adduser” command, by default the user doesn’t have sudo (admin) … Read more
How to Count number of lines in a file in Linux ?
When you are just interested into number of lines in a file to make some decision based … Read more
How to show progress bar while copying data using Rsync ?
Rsync is very good tool for copying data from remote machine in Linux. The best part of … Read more