Re: How to check UID of process on the other side of local TCP/UDP connection

I would suggest you use a authentication 
mechanism, Since the server only authenticates local clients i would recommend the local passwd 
authentication scheme.

Also the thing to notice is you basically need 
some type of access control, and access control requires three things authentication, authorization and accountablity, if you miss any there will be loop holes.

Regards,
warl0ck - MSG
http://www.metaeye.org