When we talk about DevOps and system admins, Linux is the first thing that comes to mind. But Linux itself is so vast that it’s really confusing what all you should be aware of if you are planning to go for an interview. In this article, we will try to define what are the most
In recent times, I have talked to a lot of people and have seen a few questions again and again on how to progress in this field. In this article, we are going to see these questions and what I think their answers are. These are my personal views. What should I learn to shift
When you work with Linux and memory you must have heard the term swap memory. In this article, we are going to see how swap memory affects the latencies of your system, and should you keep them or not? What is a swap memory? It is a memory space that is made available separately to
The operating system has many mechanisms to operate on memory and using it in a proper way, one of them is page faults. In this article, we will look at what is a page fault and you should keep a track of it properly. What is a page fault? A page fault is an exception
Every one of you must be aware of the term hacking and on the web, domain hackers have to make malicious requests to take down the servers. There are many kinds of attacks that they try to perform and these honeypot servers are ways to analyze their attack patterns. What is a honeypot server? Honeypot
I get a lot of questions regarding what should one learn to progress in a career or start a career in this domain. In this article we will talk about what you should learn for a long-term perspective in this field. Linux Yes, this is very important and is still evolving. Keeping a good grip
Network issues are the most common tasks that you have to debug if you involved in the setup of infrastructure and day-to-day operations. In this article, we will see how we can approach this problem. Let’s say we have few boxes that need to connect to a third-party API that is outside of the network,
In this article, we are going to look into this question. The intent of this question is to find out if you are aware of how you can design your network infra. They want to hear from you about private traffic, public traffic, how the traffic will go out, etc. Let’s start and have a
This is a very important question and can be asked in different ways. In a good interview, you can expect questions related to the technologies that you have worked on. You have to take the interviewer an in-depth tour of your systems. This is where this question can come. Now if you have a very
It’s always hectic to debug production issues and it is always wise to have a predefined step to debug any issues. But there can be scenarios where those steps may not work. In those scenarios also you should always have a flow in mind what to check. In this article, we are going to see
