Great Circle Associates Firewalls
(June 1994)
 

Indexed By Date: [Previous] [Next] Indexed By Thread: [Previous] [Next]

Subject: Re: TIS plug-gw and multiple NNTP feeds
From: leibowa @ wl . com (Allen Leibowitz)
Date: Mon, 27 Jun 94 11:17:53 -0400
To: firewalls @ GreatCircle . COM, lazear @ gateway . mitre . org

> Has anyone modified either INN or plug-gw to allow multiple
> outgoing feeds, all destined for port 119 (at least at the target
> system)?  Hearing no suggestions or mods, we're probably going to
> make the mods to INN ourselves to be able to specify the port number
> of the destination machine.(perhaps in the "newsfeeds" file).

FWIW, not haveing done any actual work yet . . .
the least intrusive way to modify INN seems to be:

     -	modify NNTPconnect (in ....lib/remopen.c) to check a 
        config file such as ~news/lib/plug-to.conf (?) that would
	contain triples of the form:
	   host:gateway:port

Connections to a <host> would go to the <gateway> on a given port.
If the config file didn't exist it would just open as usual.

The gateway machine would then run plug-gw on multiple
ports all plugging to port 119 on the remote end.

For example, if you feed uunet and decwrl the plug-to.conf file might
have:
	 uunet:news-relay:119
	 decwrl:news-relay:1120

netperm-table would then have entries like:
 plug-gw:	port 119 my-network.* -plug to news.uu.net -port nntp
 plug-gw:	port 1120 my-network.* -plug to inet-gw.dec.com -port nntp

The inbound connections would work as before with all connections coming
into the news-relay machine being plugged to the machine with INN.

Perhaps a more correct thing to do is to use the config routines
in the FWTK library and have INN read from netperm-table.

-- 
Allen Leibowitz <leibowa @
 wl .
 com>
Ann Arbor, MI  48104  USA
+1 313.998.3314
	Either CONFESS now or we go to ``PEOPLE'S COURT''!!
                    -- zippy 


Indexed By Date Previous: Re[2]: SMTP mail spoofing
From: Dorian_W_Smith @ isc_smtp . isc . nva . ge . com (Dorian W Smith)
Next: Re: Re[2]: SMTP mail spoofing
From: Adam Shostack <adam @ bwh . harvard . edu>
Indexed By Thread Previous: Re: TIS plug-gw and multiple NNTP feeds
From: nreadwin @ london . micrognosis . com (Neil Readwin)
Next: Re: TIS plug-gw and multiple NNTP feeds
From: lacoursj @ uprc . com (Jeffrey D. LaCoursiere)

Google
 
Search Internet Search www.greatcircle.com