Linux Remote Execute shell command

Linux Remote Execute shell command

In a Linux system, we often want to execute a shell command on machine B on a machine.

The following scenario is a popular and reliable solution.

1.SSH Login without password

# Local server execution (a machine): Generate key Pair

Ssh-keygen-t Dsa-p "-F ~/.SSH/ID_DSA

# Remote server execution (b machine): With the public key to the remote machine authorization, first need to copy the local public key to the remote server, the remote machine authorization, you can delete the public key

Cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys

After the operation, a machine can be no password ssh to the B machine

2. Execution of SPECIFIC commands

SSH [email protected] "/root/nginx/nginx-1.2.3/sbin/nginx-s Reload"

Linux Remote Execute shell command