The primary purpose of the slave server is to provide a backup to the primary master server should it go down for any reason. The major difference between the master server and the slave is where they get their data.

This tutorial describes how to set up database replication in MySQL using an SSL connection for encryption (to make it impossible for hackers to sniff out passwords and data transferred between the master and slave).

This tutorial describes how to set up database replication in MySQL using an SSL connection for encryption (to make it impossible for hackers to sniff out passwords and data transferred between the master and slave).

This tutorial describes how to set up database replication in MySQL. MySQL replication allows you to have an exact copy of a database from a master server on another server (slave), and all updates to the database on the master server are immediately replicated to the database on the slave server so that both databases are in sync.

This example uses CentOS 6 so one of the issues you will need to be aware of is SELinux. The great aspect of a slave server is that you can update your primary DNS server and it automatically update the slave.

Microsoft-Novell slave trade in the words of Simon Phipps

There are different ways to take Backup from MongoDB. Using mongodump is one of simple and efficient way to implement it. The bash script presented here take backup from replica set after verifying that current server is slave and then transfer it to separate backup server along with capturing vital information of all steps in log file.

Kerberos provides a secure network authentication model using secret-key cryptography. Kerberos can be used with multiple services to offer superior authentication security. On a Centos system you can review a list of possible programs that are listed for kerberos with yum.

This tutorial was written for the Debian Lenny distribution and supposes that the user has knowledge about what load balancing is and some basic skills of Linux, our two load balancers consist out of 2 machines that monitor each other [heartbeat], if the master stops responding the secondary one [Backup] will take the master role [Backup -> Master].