bash run script on multiple machines

#---------------------------------------------------------------------------
# sshpass allows to run remote commands
# for example
#while read ip; do
#  echo -n "$ip: " >> local_file.log;
#  sshpass -p 'your password' ssh user@$ip remote_command >> local_file.log
#done < ips.txt
# ips.txt would be an ip address per line
#---------------------------------------------------------------------------
sudo apt-get install sshpass
# ufw is for firewall port 22 is for ssh
sudo ufw allow 22
sudo apt-get install openssh-server
# this sets the default configs for ssh
sudo cp /etc/ssh/sshd_config /etc/ssh/sshd_config.original
# this makes it runnable or something
sudo chmod a-w /etc/ssh/sshd_config.original