Published at LXer:
Many times, you want to execute a command not only on one server, but also on several servers. Here is an article that explains how to use distributed command execution. tentakel' tool you can is a program for executing the same command on many hosts in parallel using various remote methods. With the help of tool called tentakel, you run distributed command execution. It is a program for executing the same command on many hosts in parallel using ssh. Main advantage is you can create several sets of servers according requirements. The command is executed in parallel on all servers in this group thus result into time saving.