Allow network users to log in to your Mac
If your Mac is joined to a network account server, you can specify which network users can log in to your Mac.
On your Mac, choose Apple menu > System Settings, then click Users & Groups in the sidebar. (You may need to scroll down.)
Turn on “Allow network users to log in at login window,” then click Options.
Do one of the following:
Select “All network users,” then click Done.
Select “Only these network users.” Click the Add button , click Network Users or Network Groups, choose a user or group, then click Select. Repeat this step to add as many users or groups as you want. Click Done.
To log in using a network account, you enter your network user account name and password in the login window. If the login window displays a list of users, click Other, then enter your network account name and password. You can set the login window to display a list of users in Lock Screen settings.