On Saturday 15 March 2008, Sobari Tanuwijaya wrote: > Dear All, > a friend of mine who has a small office want to have a configuration > like this: > * around 3 people can have full access to internet > * around 1-2 people can just have email access (can send and receive > email to any address) > * the rest of the people in the company just can have internal email > (can send and receive email just to/from the peer - on the same > domain). I set up one client using a configuration of the first 2 points you describe. I did it by installing Postfix and using MAC address filtering. It works great. Shawn