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…
VLC media player is a portable, free and open-source, cross-platform media player(Linux,Windows,OSX,BSD etc.) and streaming media server written by the VideoLAN project. This is my first post on VLC media player.Recently a question was asked by a newbie to me. His question was , how to install VLC media player on Ubuntu 14.04 LTS. There…
In this tutorial we will learn, how to install Nagios 4 from source on Ubuntu 14.04 LTS. In this practical I have seen some problems while Nagios core 4 installation. Because in Ubuntu 14.04 LTS is shipped with new Apache 2.4 version ,it was quite obvious some extra steps we have to do. I will…
After a long time I created a repo on my Github account.Creating a repo is quite easy on Github, simply login to your account and click on ‘create repo’ button. After creating git repo, now it was time to push all my codes from my desktop to github repo. After cloning the repo into my…
This is a single line sed command to illustrate the example of , ” How to print particular line number by using sed command ” . sed command are the ultimate stream line editor. Often we generally share sed related tips. Given below is content of file called test. Absolute path is /tmp/test This is…
Today while working on CentOS 7, I used yum command to install some packages. But I interrupted the yum command by pressing CTRL + C from keyboard. Which lead me to this error : There are unfinished transactions remaining. You might consider running yum-complete-transaction, or “yum-complete-transaction –cleanup-only” and “yum history redo last”, first to finish…
In this tutorial we will learn, how to install MariaDB Server on CentOS 7 / RHEL 7 . Before the stable release of RHEL 7, it was confirmed the MariaDB will be default database. This is one of the major changes we have observed in this RHEL 7/CentOS 7 stable release. Whereas MySQL server still…
In this tutorial we will learn, how to install MySQL Server 5.6 on CentOS 7 / RHEL 7 . In our previous post, we have installed MySQL Server 5.6 on CentOS 6.x/RHEL 7.x. In CentOS 7/ RHEL 7 , now MariaDB is introduced as a defualt database. Still many Organisations/Company would like to continue with…
The opensource pagespeed module ( mod_pagespeed ) is widely used for speed up the websites. Pagespeed module is available for Apache and Nginx . Currently, to list your website on google top search page , your site must be opened quickly. Hence, speed matters for user end experience also. Now a days, users do not…
In this tutorial we will learn how to install nginx from source on CentOS 7 . Nginx has ability to handle more than 10,000 simultaneous connections with nearly 2.5 Mb of memory usage. In our previous post on installing nginx from source on CentOS/RHEL , we have already mention brief intro on Nginx. Why we…
While working on Nginx compilation from source, we got the error ‘Can’t load ‘/usr/local/lib64/perl5/auto/nginx/nginx.so”. In this post we are sharing the solution to fix this issue.
In this post we will learn about how to backup and restore iptables on CentOS 7 and RHEL 7. The steps are still same as we have found in previous CentOS/RHEL versions. For backup and restore process of iptables, you should be login with root user in system Step 1 : To take iptables backup…
On the journey of exploring the newly releaed CentOS 7 . I found another interesting thing. This is related to iptables. In previous CentOS versions, we used to stop iptables service by using the command service iptables stop or /etc/init.d/iptables stop On newly shined CentOS 7 / Red Hat 7 , with systemctl command we…
As we know recently CentOS 7 is released ,studded with many new features. On the part of exploring the CentOS 7, I encountered with first change. In my last post on finding the CentOS release version on CentOS 7, I gave a brief info that networking related changes is also found. A few days back…
Recently I installed CentOS 7 in my local system. As we know there are many new changes has been done in CentOS 7 version. Today, I am writing about our first finding in CentOS 7. Through this post we will know about how to find CentOS Linux realase version on CentOS 7 series. In previous…