4 ways to fix SSH Permission denied (publickey)
Remote access via SSH is a cornerstone of Linux administration, but it often fails with the frustrating “Permission denied (publickey)”…
Mastering Linux Export Command
The export command is a bash shell BUILTIN command. It tells the Linux shell to make the variables available to…
What is PATH variable in Linux and how it works
The PATH variable is a list of directories that contains executable programs. It controls where your shell will look for…
3 ways to find Which Process Listening on a Particular Port in Linux
In Linux, there are several commands that can be used to find the process name associated with a specific port…
4 ways to check network usage in Linux
By keeping an eye on your network usage, you can make sure that your system is running smoothly and efficiently.…
What is sparse file and how to check it?
A sparse file is a type of computer file that has holes in it. These holes don’t contain actual data.…
5 useful Linux network troubleshooting commands
Here are five commands that we can use to troubleshoot network issues in Linux. ifconfig: the ifconfig command is used…
What is 0.0.0.0 ip address?
Demystifying 0.0.0.0: The Most Misunderstood IP Address in Networking If you’ve ever built a web server, configured Docker, or spun…
6 ways to use netstat command in Linux
The netstat command is one of the most powerful and useful commands in Linux. It can be used to troubleshoot…
2 Easy ways to fix cd: string not in pwd
The cd command is used to change the current working directory. When using the cd command with arguments, you can…