Okay, so I have a VPS and I made an account for a friend so he can host his own domains (using the reseller features in DirectAdmin). He's asking for SSH access, and I know that this is probably a bad idea. Does he have access to my whole server, such as executing commands, accessing my domains that I host on my server? I logged into my SSH using his account details and it let me navigate around all of the root folders/files, and his account is under /home/AccountName/.
Is there anyway to restrict his access to his folder only? And the commands he can use?
Edit: Can he install programs and whatnot on my server?