2 Easy ways to fix cd: Permission denied

If you’re getting an error like “cd: Permission denied” when trying to change directories in Bash, don’t worry, you’re not alone. This is a common issue that can be fixed fairly easily. In this blog post, we will discuss two ways to fix the cd: Permission denied error. Hopefully one of these methods will work […]

Understanding SSH’s StrictHostKeyChecking Option

The SSH option StrictHostKeyChecking is a security feature that affects how SSH verifies the identity of a remote computer when connecting to it. When this option is enabled, the client will automatically reject any key from the server that does not match the one stored in its known_hosts file. This helps protect against man-in-the-middle attacks, […]

3 ways to fix ssh: Could not resolve hostname Name or service not known

If you’ve been getting the error message “ssh: Could not resolve hostname Name or service not known,” don’t worry, you’re not alone. This is a common problem that can be fixed in a few simple steps. In this blog post, we will discuss three ways to fix the ssh error message. We will also provide […]

10 Linux interview questions and Answers

What are the performance tools you would use on Linux Machine uptime dmesg | tail vmstat 1 mpstat -P ALL 1 pidstat 1 iostat -xz 1 free -m sar -n DEV 1 sar -n TCP,ETCP 1 top   Detailed Answer is available here How would you troubleshoot a High I/O Issue Detail Answer is available […]

4 Proven Strategies to Succeed in a Technical Interview

Landing a job in the tech industry can be difficult. If you are looking to break into this field, you need to be prepared for the technical interview. This can be a daunting task, but don’t worry – we are here to help! In this blog post, we will discuss 4 proven strategies that will […]

4 useful Linux Commands that Fix your Network issue in Minutes

As a Linux administrator, I often find myself troubleshooting and resolving networking issues. One particular experience that sticks out in my mind was when I had to debug an issue with our DB server’s access. The symptoms of the problem indicated that our new application machine wasn’t able to connect to the DB server, but […]

Solving a Networking Issue on Linux in 20 minutes

Recently, the network at my workplace went down for a few minutes. I was tasked with investigating the issue and found that one of the network cards had failed. Step by Step guide to Troubleshooting network issue I started by checking the status of the network interface: ifconfig eth0 The output showed that the interface was […]

Step by Step Guide to troubleshoot a network issue in Linux

Troubleshooting a problem related to Linux networking can be a challenging experience, but it doesn’t have to be. By understanding the basic principles of Linux networking and having an organized approach, you can quickly identify and resolve any issue that arises. Check network configuration with ifconfig or ip command The first step in troubleshooting a […]

3 Ways to fix ifconfig command not found in Linux

If you’re having trouble with the ifconfig command not found in Linux, don’t worry – you’re not alone. This is a common issue that can often be fixed quite easily. In this blog post, we will discuss three ways to fix this problem. We will also provide some tips on how to avoid it in […]