View utmp, wtmp and btmp files In Linux/Unix operating systems everything is logged some where. Most of the system logs are logged in to /var/log folder. This folder contains logs related to different services and applications....Read More
Generating GPG key in Linux Q. Recently when we are building a RPM package using rpm-build we come across a requirement to have GPG key inserted in to the package for security and authenticity of the rpm package, so that people...Read More
Basics of SElinux What is SELinux? SELinux is a set of security policies/modules which are going to apply on the machine to improve the overall security of the machine. These are the Linux security modules(LSM) which are loaded...Read More
We are very much happy to announce that we started posting on DNS client and Server stuff on our blog for this month(Jan 2011). We already have some minor existing stuff related to DNS and troubleshooting it. Below are quick...Read More
We can always set time to the commands showed in history command. Why we require to set time for...Read More
IPtable is a firewall application by default installed in all the Linux flavors. It is having...Read More
How we can login to remote server through ssh? #ssh user@servername or #ssh -l user servername or #ssh ip-add So when you will execute the above command you will get the password prompt. But if you want to see what will happen...Read More
IP forwarding is a concept to make Linux machine to send data from one network to other, this is same as a router(A router is a device to send packets from one point to other point depending on the packet destination/rules...Read More
What is this auto logout? Ans : Auto logout is a concept to force user to logout from the remote server. If the open session to remote server is idle for a given time. This is a security measure Linux administrators follow for...Read More
Its good to harden your box which is in DMZ. What is DMZ? Ans : DMZ is a De Militarised Zone where we will be keeping our servers, so that they can be access by out side people. Let me explain more about this DMZ. Who are not...Read More
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My name is Surendra Kumar Anne. I hail from Vijayawada which is cultural capital of south Indian state of Andhra Pradesh. I am a Linux evangelist who believes in Hard work, A down to earth person, Likes to share knowledge with others, Loves dogs, Likes photography. At present I work at Bank of America as Sr. Analyst Systems and Administration. You can contact me at surendra (@) linuxnix dot com.