ssh and adding users in multiple users

SarahBraxton · 12-12-2015, 06:28 AM

In our environment i have to ssh to each an every servers
ssh <hostname> then which prompts for password for every login
i have to create a user name on 30 severs manually it takes much time so need a script to do this task i have googled and found some for loop scripts but it did not fullfill the requirement.
First i have to check whether the users exists and not and later add the user or reset the password for user using script

berndbausch · 12-12-2015, 09:26 AM

The command to create a new account is useradd.
No need to check if the user exists already; useradd will do that for you and exit with an exit value of 4 if that is the case (see man page).

useradd also has options to set the password and parts of the password policy, e.g. the -p option. Otherwise, you can for example use passwd --stdin to provide the password from standard input.

jpollard · 12-12-2015, 01:49 PM

30 servers?

It is time to use LDAP and Kerberos instead.

erik2282 · 12-12-2015, 08:46 PM

+1 vote for LDAP