Great Circle Associates Firewalls
(August 1994)
 

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Subject: Re[2]: Netfind > X.500
From: Ken Beames <webmaster @ qdeck . com>
Date: Tue, 30 Aug 94 16:20:12 PDT
To: firewalls @ GreatCircle . COM, webmaster @ qdeck . com, polansky @ chaplin . ndhm . gtegsc . com

>
> If netfind will discover a bunch of stuff, and create alot of suspicious
> traffic, isn't X.500 stuff supposed to facilitate that same sort of thing? 
>
     
X.500 is a standard for directory services. I won't claim to know much about 
the technical details, but it does not work like netfind and is meant to 
retrieve *published* information about an entity (human or otherwise).
     
> I don't know much about it, I've got a buddy who's writing an X.500 browser, 
> and it seems to me that this would need to be a thing to be aware of.
>
     
The X.500 browser he's writing sounds like what is called a Directory User 
Agent (DUA). It is a client application which will contact its default server 
to make directory queries. This server may contact other servers as a X.500 DB 
can be distributed. Neither the client DUA or the server (DSA) would go around 
snooping on random machines around the network. They would connect to other 
known, cooperating servers - much like the Domain Name System (DNS).
     
> Ken Beames
> Quarterdeck Office Systems
> beames @
 qdeck .
 com
>
>
     
-Rob Polansky

------------------=============================
Cool, that answers my question perfectly.  Thanks.  
So if you son't want anyone querying your domain with NETFIND, disable finger, 
and the auth function in sendmail at your bastian/router.

-Ken.

Ken Beames
Quarterdeck Office Systems
beames @
 qdeck .
 com


" So long and thanks for all the fish! "


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