MBOX-Line: From mrc at CAC.Washington.EDU  Fri Sep 15 07:10:02 2006
To: imap-protocol@u.washington.edu
From: Mark Crispin <mrc@CAC.Washington.EDU>
Date: Fri Jun  8 12:34:37 2018
Subject: [Imap-protocol] reporting/detecting expunged messages
In-Reply-To: <1434.1158328836.664006@peirce.dave.cridland.net>
References: <4505F2FE.8090807@sun.com>
	<Pine.WNT.4.65.0609111648410.5544@Tomobiki-Cho.CAC.Washington.EDU>
	<450713AB.4090601@sun.com>
	<Pine.WNT.4.65.0609121316280.2164@Tomobiki-Cho.CAC.Washington.EDU>
	<45071A57.5080406@sun.com>
	<9SYO8YZNXU3qj9EYGtuGNg.md5@libertango.oryx.com>
	<Pine.WNT.4.65.0609121437140.2164@Tomobiki-Cho.CAC.Washington.EDU>
	<2xKZXsAOqJTXDcZB/xUw7g.md5@libertango.oryx.com>
	<Pine.WNT.4.65.0609141841560.1540@Tomobiki-Cho.CAC.Washington.EDU>
	<1434.1158328836.664006@peirce.dave.cridland.net>
Message-ID: <Pine.OSX.4.64.0609150704410.368@pangtzu.panda.com>

On Fri, 15 Sep 2006, Dave Cridland wrote:
>> In my opinion, the minimum period should be between 5 and 30 minutes.  NAT 
>> has pretty much made it non-viable to go idle for more than 5 minutes.
> I'm not sure that's true anymore. Specifically, I know that Linux's NAT 
> implementation, which accounts for several of the common DSL routers, doesn't 
> timeout a silent connection until a matter of days.

I would expect that Linux plays nice.

That doesn't apply to the non-Linux DSL routers and standalone NAT boxes 
out there.  An attacker can make a Linksys box toss its NAT mappings in a 
matter of seconds from previous activity.

You can't assume that they're all Linux, so all is well.  Linux based 
boxes are the minority.  FWIW, Linksys used Linux for a while, and then 
went back to a proprietary OS.  So it isn't clear what the trend actually 
is.

-- Mark --

http://panda.com/mrc
Democracy is two wolves and a sheep deciding what to eat for lunch.
Liberty is a well-armed sheep contesting the vote.

