[X-Unix] Re: Why does mDNSResponder have User ID = 4294967294?

[Peter Dyballa]

Am 24.02.2005 um 03:03 schrieb 
x-unix-request at listserver.themacintoshguy.com:

> According to Apple developer docs, this "Multicast DNS Responder" is 
> there
> for Rendezvous and "is built into Mac  OS X 10.3.x. mDNSResponder 
> listens
> for and responds to DNS-formatted query packets sent via  IP  
> Multicast  to
> UDP port 5353".  So it looks legitimate, but why such a strange user 
> ID?
> The system is usually UID=0.

This number stands for "nobody" -- a user with the ID -1 (in a system 
with 16 bit UIDs) or -2 (in a system with 32 bit UIDs) which is 
represented as this. Imagine 2^32 and subtract 2 -- that's all!

--
Greetings

   Pete