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Welcome to Ramblings of a Centos Ninja

Centos 6

--> Change Runlevel
--> Check Current Runlevel
--> Change Run Level at Bootup
--> How to change the Hostname on Centos
--> chkconfig settings
--> How to extract a tar.gz file
--> Install SIM - System Integrity Monitor
--> Use Bash on a Non Bash User
--> Quit Bash Shell without Saving Bash History
--> Change the Timezone Centos
--> Check the Version of Package
--> How to install Sphinx on Centos Server
--> How to install Redis on a Centos 6.4 Server
--> Adding a New Disk Drive with Centos

Magento Community Edition/Magento Enterprise Edition

--> What is Magento?
--> Clear Magento Cache
--> Disable Magento Modules
--> Turn on Manual Indexing
--> How to Reset Magento Password
--> How to Create Users in Mageento
--> Enable Mysql Slow Query Logging
--> Magento Connect is not Working
--> Magento will NOT save my Product Updates
--> Magento Internal Cron not Running
--> Setting up the System Cron Job
--> Magento Connect is not Working
--> Changing the Minimum Search Query - MySQL Full Text Only

Memcached Server

--> Memcached Monitor Tool
--> Setup Multi Instance Memcache
--> Check if Memcached is Running
--> Flush Your Memcached Instance

Apache/PHP

--> How to setup an SSL Certificate for Free
--> Enable Apache to Create Core Dumps
--> Enable php-fpm to create core dumps
--> Debug PHP Enabling slow_log 

Mysql/Percona

--> How to Optimize/Repair a Table
--> MySQL - Check Which Query is Consuming Resources
--> Rest your MySQL Admin Password
--> How to Convert Table to InnoDB 
--> How to install Percona Database Server

Other

--> Linux Keyboard Shortcuts
--> Crontab Usage
--> Setup a SSH Tunnel for Secure Browsing
--> Install OpenSSH on Windows
--> Install Qmail on a Fresh Centos Server
--> Setup Qmail to Listen on port 587 for SMTP
--> Install qmqtool for Qmail on Centos Server
--> Centos Oneliners