Pssh allows you to run ssh commands and more on multiple hosts.

apt install pssh

Note: This is from the readme documentation.

To avoid any conflicts with the putty package, all of the programs have been renamed.

• parallel-ssh is pssh
• parallel-scp is pscp
• parallel-rsync is prsync
• parallel-nuke is pnuke
• parallel-slurp is pslurp

Create a hostfile to use with pssh

touch /home/user/.ssh/hosts

In the above hostfile add hosts as username@ip or username@hostname example:

ansible@hostname
[email protected]

If you need a private key in order to connect you need a config file in your

touch /home/user/.ssh/config

The config file can have multiple hosts with multiple keys example:

Host *.mgt
StrictHostKeyChecking no
IdentityFile ~/.ssh/some_private_key

Host wonka.mgt
StrictHostKeyChecking no
IdentityFile ~/.ssh/another_private_key

Host xxx.xxx.xxx.xxx
StrictHostKeyChecking no
IdentityFile ~/.ssh/another_private_key

parallel-ssh -i -h hosts uptime

parallel-scp -h hosts sample.txt /home/user_home_dir/

parallel-rsync -h hosts sample.txt /home/user_home_dir/