You install the Remote Media Agent on a Linux server. You enter the license key on a Backup Exec media server.

See Installing the Remote Media Agent.

See Adding licenses.

To back up and restore Linux and UNIX servers, the beoper group must exist on each server or in the NIS domain's group file. The Remote Agent installer automatically creates the beoper group and adds root as a member if a server in the NIS domain group file is not detected. You must create the beoper group manually if the computer is a member of a NIS domain.