Highly Available Linux Cluster for (LAMP) Apache, MySQL, PHP using DRBD and HeartBeat on CentOS / RedHat / Fedora

          Disclaimer: The following steps are performed on Virtual machines and tested successfully. It is advised to test first on raw / virtual machines and then in production environment. We will setup for Apache Webserver and MySQL on High Availability Cluster (2 Nodes). Test Scenario:

Installing MantisBT – A Bug Tracking System

By: Muhammad Farrukh Siddique ======================================= MantisBT version: 1.2.17 CentOS version: 6.2 Apache version: 2.2.15 PHP version: 5.3.3 MySQL version: 5.1.73 ======================================= ————————————– Disable SELinux and configure iptables accordingly. to disable SELinux open file # vim /etc/sysconfig/selinux change the enforcing status to disables, as below: SELINUX=disabled save and quit

Transparent Squid Cache Proxy Server Configuration in 5 easy steps on CentOS / RHEL / Fedora Core / Scientific Linux

Configure Transparent Squid cache proxy in 5 Easy Steps on CentOS RHEL Fedora Scientific Linux    Step 1 [root@squid-server ~]#vim /etc/sysctl.conf # Controls IP packet forwarding net.ipv4.ip_forward = 1 #### If it is 0 make it 1 for packet forwarding #### wq! [root@squid-server ~]#sysctl -p