Join , subscribers and get a daily digest of news, geek trivia, and our feature articles. Changing the group a user is associated to is a fairly easy task, but not everybody knows the commands, especially to add a user to a secondary group. User accounts can be assigned to one or more groups on Linux. For example, on Ubuntu, only users in the sudo group can use the sudo command to gain elevated permissions.
Managing Group Access
Creating users and groups for reporting servers on UNIX that use Oracle databases
The groupmap subcommand included with the net tool can be used to manage these associations. Only those NT groups that map to a UNIX group that has a value other than the default -1 will be exposed in group selection lists in tools that access domain users and groups. The domain admin group parameter has been removed in Samba-3 and should no longer be specified in smb. In Samba Appropriate interface scripts should be provided in smb.
Linux: Add User to Group (Primary/Secondary/New/Existing)
A user is anyone who uses a computer. In this case, we are describing the names which represent those users. It may be Mary or Bill, and they may use the names Dragonlady or Pirate in place of their real name. All that matters is that the computer has a name for each account it creates, and it is this name by which a person gains access to use the computer.
On Unix-like operating systems, the adduser command creates a new user , and the addgroup command creates a new group. They are friendlier front ends to the low-level tools like useradd , groupadd and usermod programs, by choosing policy-conformant UID and GID values, creating a home directory with skeletal configuration, running a custom script , and other features. There are five major ways to use adduser and addgroup can be run in one of five modes:. If called with one non-option argument and without the --system or --group options, adduser will add a normal user. The UID can b overridden with the --uid option.