How to add user to domain admin in linux?

It has been a long time since I have done this and forgot how. This is the command I am running: sudo /usr/sbin/usermod -G 'dom admins' 'user' but It says unkown group. I know we have done it before but is there a default group in samba that controls domain admins and maybe I am typing it in wrong. I have also tried typing in domain admins in lower and upper case for the group. Any ideas?

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Comments

Unamerican Idol

you need to find out the name of the group you want to add the user into.

cat /etc/group will print out the names of all the groups that exist.

then do useradd -G groupName userName and the next time the user logs in, they'll be part of the group.

Silver Bullet

If you use just "usermod -G groupname username", then it will remove any other supplementary groups that user was a member of. I would recommend using it with the -a (append).

usermod -a -G groupname username

carboncopy

read too fast

Grynder

I have always used gpasswd -a username group