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

from [Glynn Clements] Network Security [Permanent Link]
Subject: Re: How to check UID of process on the other side of local TCP/UDP connection
Date: Wed, 29 Nov 2006 20:13:37 +0000 

Filipe Varela wrote:


Anyways, I would prefer to stick with TCP/UDP, because this is  
what my
programs use already, and  I don't really want to change  
everything to
Unix sockets (unless of course Unix sockets are the only good way to
resolve my problems).


I don't want to go off-topic but i have an important question. Isn't  
a socket a concept that translates an address and port? How would  
someone go about doing tcp/udp without sockets when they both depend  
on address/port mappings which are _literally_ sockets?

Am i wrong?


I think that you misunderstood.

By "Unix sockets", he was referring to using Unix-domain sockets
(AF_LOCAL) rather than TCP/IP sockets (AF_INET).

Unix-domain sockets have the advantage that you can obtain the
identity (PID, UID, GID) of the peer from the OS.

-- 
Glynn Clements <glynn@gclements.plus.com>
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