3 Ways to Change User Shell in Linux
On Linux a login shell is a shell given to a user upon login into their user account. Today we…
2 ways to Check Disk space in Linux
How to check disk space is a commonly asked question during a Linux job interview. Disk space usage and disk…
10 important Linux File System Terminology and Concepts
File system is an important part of Linux world. We collect 10 useful file system concepts below to help you…
Linux File System: Raw IO and Direct IO
Raw IO and Direct IO are both bypassing file system cache. Here are more details about these two IOs. This…
How to Check if a Disk is Busy in Linux
This article is part of the following series. Disk utilization in iostat command is a key metric to check…
Understanding Maxdepth Mindepth Depth In Linux Find Command
Find command on Linux is a very powerful tool to search files or directories. We can use maxdepth/mindepth to limit…
What is IOwait on Linux
Linux IOwait is a common Linux performance issue. Today we will look at what iowait means and what contributes to…
Check DNS Records with Examples – PTR MX SRV CNAME AAAA
DNS is a very critical part of the Linux operation world. We will cover the most common DNS records today.…
4 ways to Check DNS Record with dig Command in Linux
The most efficient way to check DNS records in Linux is using dig command. This command will send the DNS…
4 Commands to Check HBA WWN WWNN WWPN on Linux
How to get HBA WWPN on Linux is a common task for a storage engineer. We need the WWPN to…