1. Network Services

2. Domain Controllers: – Used for Account management (e.g. user accounts, group accounts Register Hardware like Printers and PC Authentication DNS: Not only for websites To administer the email To organise the intranet

3. Network Services File Services: (file transfer and file sharing) – FTP – Peer to peer – MSN – HTTP – Email – OS file sharing

4. Network Services Application Services: – Database servers – Web servers (intranet / internet) – Proxy servers – Print servers – Network storage – Mobile networking Telecommunications Services: – Email – Voip – Chat