anuj Archive

Linux commands to check performance

vmstat ps -aux netcat df netstat mstat, traceroute, ping telnet to port to test remote server have port open multiple binaries in /proc/ like /prod/cpuinfo journctl -f /var/log/syslog tail, head, less, grep , sed and awk to filter logs

Linux Interview questions – Part4

In this post, I will share next part of linux interview questions series. What is a tunnel and how you can bypass a http proxy? What is the difference between IDS and IPS? What shortcuts do you use on a regular basis? What is the Linux Standard Base? What is an atomic operation? Your freshly configured

Linux Interview questions – Part3

In this post, I will continue with the Linux interview questions series and share the third part of it. What do the following commands do and how would you use them? tee awk tr cut tac curl wget watch head tail What does an & after a command do? Also ? in bash script What

Linux Interview questions – Part2

Here are the second part of Linux interview questions: What is the name and the UID of the administrator user? How to list all files, including hidden ones, in a directory? How to delete files older than 7 days from a directory?  Which command will show you free/used memory? Does free memory exist on Linux?

Linux Interview questions – Part1

I will start a series of  Linux interview questions to prepare for the interview. This is the first series and most of the answers are pretty easy to find out through the Google search. I want to share questions to prepare for interviews. For any difficult question, I will share the resources for preparation. I

What are Microservices?

Microservice decouple the application into different domains depends on logic of responsibility. Microservices communicate with each other in a network through REST with no knowledge of how other service is working internally. This composition of different service in a framework is called Microservice architecture. As all services are independent of each other, any bug or