To create a user in Solaris, create directory with the name of new usermkdir /export/home/newuser
Now add the user useradd -s /usr/bin/bash -d /export/home/newuser newuser
Change the ownership chown newuser:staff /export/home/newuser
and finally change the password passwd newuser

Use command passwd username to change user password. Eg: passwd user1

To get Solaris version installed on your macihne, run command uname -r. If you want more detail information then use command cat /etc/release.

To delete a user from Solaris, use commad userdel username. To remove user directory use parameter -r with userdel eg userdel -r user1. To delete a role use command roledel.

To restart sshd, run command /lib/svc/method/sshd restart .

To add a group use command groupadd
Example:
groupadd newgroup