How to change max_connections setting in MySQL

Error:  "too many connections"

Solution:The default setting for max_connections is 151.

How to install Bugzilla 4.2 on CentOS 7

Bugzilla is an advanced bug tracking system, developed by the Mozilla Foundation. Bugzilla allows you to track defects and code changes in applications, allow communicating in your dev team easily and submitting and reviewing patches.

How to configure Self-Signed SSL Certificate in Apache HTTP Server

Apache HTTP Server HTTPS secure connection using Self-Signed SSL on Apache.

How to Disable SELinux on CentOS 7

SELinux, or Security-Enhanced Linux, is a set of security modules which are loaded in to kernel to improve security on accessing services/files which improve security. SELinux was initially released as a collaborative between Red Hat and the National Security Agency. The SELinux kernel separates policy and decisions inside the kernel to distribute levels of protection and prevent a total security breach.

How to add or change hostname in RHEL7/CentOS 7

By default, while installation the server is started with the default host name as localhost.localdomain. Host name for a system is like an identity for that system to makes system management and also we can use host name to access the system over the LAN.