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. The error message “ssh: Could not resolve hostname [name]: Name or service not known” indicates that the SSH…
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…
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…
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…
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…
I was recently tasked with solving a tricky disk performance issue on a Linux server. At first, I thought it would be a straightforward task. After all, I had been working in IT for several years and had seen my…
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…
The “ifconfig: command not found” error typically means that the ifconfig binary is not installed or the path of the binary file is not under the $PATH. So we can use the following 3 ways to fix this issue. …
Networking is an essential element of any Linux interview. Employers want to know that potential employees can establish and maintain secure connections in a networked environment. What you should prepare for the interview? Being able to troubleshoot networking issues, and…
In Linux, there are many tools available for performance analysis and monitoring. In this article, we will introduce 6 of the most commonly used tools. top – display cpu memory process info in Linux The top command is one of…
