Apache: I have multiple domains on one hosting. I have a web-management software listening to port 3000 and one phpmyadmin. Can I restrict access to a certain domain? I mean that example.com:3000 will work and notexample.com:3000 not? (same for phpmyadmin)
UPD: I have 3 IP's pointing to that host.
Postfix/Cyrus: What is the right config to reject emails to mailboxes which do not even exist? (LDAP)