A challenge for most of the system administrators is having the config set up in all the machines in the same manner. The installation can be central, but this does not guarantee the configurations will be consistent across all machines. Over a period of time, some machine configuration files might have been changed or moved to a different location. This is where Puppet comes to the rescue.

Puppet is a system that helps you centrally manage the configuration across machines and helps avoid problems of locating the config files in each of the remote machines and then changing the configuration in each of them one by one. Puppet master is a service set up on a server to centrally track and maintain the configuration files on all your client nodes. Every client will have a daemon running, which periodically reports to the Puppet master and also makes the changes in the client config files. Puppet is primarily an open source system; however, there is an enterprise version available as...