how to list authorized AD group and users on CentOS 8

We have one CentOS 8 server where it's integrated with Windows AD so users access it with their Windows credentials. I have a request and need to check out which users and groups are allowed to access it (not all the AD users were authorized). I can check on sudoers file to see who has the rights to run commands, but is there any other place we can check who can ssh to the server? /etc/passwd seems not storing the AD user info. Many thanks.