The tutorial will explain about how to set hostname and FQDN on CentOS 7 and RHEL 7 (Red Hat Enterprise Linux 7). In our previous post “How to change hostname on CentOS and Red Hat“, we have already define the difference between hostname and FQDN. Hence suggest to read this post. In Red Hat Enterprise … Read more
Bash Code Injection Vulnerability via Specially Crafted Environment Variables (CVE-2014-6271 (aka Shellshock ), CVE-2014-7169). This is one the most vulnerable bug we have seen in Linux at current time. Due to this bug, we are seeing lots of business impact in entire world. Details of CVE-2014-6271 A flaw was found in the way Bash evaluated … Read more
This time I made a thought to share something interesting.It is not related to system admin but it is just for fun. I generally use ubuntu most of the time for my desktop purposes. Hope you will like this matrix effect on your terminal. First you have to install cmatrix package into your system. It … Read more
In this post we will learn how to install EPEL repo on CentOS 7 and RHEL 7. On our previous post of “How to install EPEL repo in CentOS/Scientific Linux/Red Hat” , we have already written about EPEL repo. Extra Packages for Enterprise Linux (or EPEL) is a Fedora Special Interest Group that creates, maintains, … Read more
Today, in this post we will explain about linux clear command and its keyboard shortcut. Like cls command on Windows, on linux we use clear command.clear command is available on all Unix like Operating System. clear command clears output and command on console or terminal window. In short words, clear command clear the screen. But … Read more
In this tutorial we will learn about how to install Nagios 4 on CentOS 7/RHEL 7 . To install nagios we will use its stable source code, which is avaible at Nagios site. Nagios is one the most popular, stable and reliable monitoring tool. It is available as free and Open source package called Nagios … Read more