I too had this doubt! what are the differences between “tar” and “zip” utilities in Linux. The answer is quit simple rather than the confusion. We all are very familiar about the word (extension) “.tar.gz“, it’s very common when we…
Administrative tools
How to replace a failed harddrive in a software RAID 1 array?
Is it possible to replace a faulty drive from RAID 1? What are the steps? Here I’m explaining the detailed steps in replacing a bad drive from software RAID 1 array. As you know RAID 1 means mirroring. Here I’ve…
Introduction to Python – Say Hello World!
Why this category? Now-a-days we do not have much time to spend for repeated works. We all are busy with learning new things. And we required some automation tools to reduce the work load and save the time. Python is…
A simple note on Reverse DNS Record
Why this topic important? What are the uses of rDNS record? Yeah, we all know about forward DNS lookup and its working. It’s a topic directly focusing on “What is reverse DNS?” A domain name system (DNS) is simply points…
MySQL tweaking – best practices and tips for SysAdmin
A quick note on MySQL tweaking. Why MySQL tweaking? We all need fast, reliable and secure environment for our online space. Almost all websites has its own databases to store its data. MySQL is one of the most widely using…
How to convert or concatenate integer with string variable in Python?
Convert int to str. Simple way to concatenate integer and string variables – Python. In some cases, you have to concatenate integer variables to string variables in your Python script. You can not do this by simply using the (+) sign. In…
Find and Kill all Zombie processes running on server
Did you ever notice some processes with status “Z” on your server/system? Find and Kill all Zombie processes running on server. These are Zombies. On this article I’m explaining the ways to find and kill all Zombies on the server.…