Re: [tor-relays] blocking >1 connections per ip address onto Tor DirPort

[Toralf Förster <toralf.foerster@xxxxxx>]

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On 08/16/2017 12:22 AM, Roger Dingledine wrote:
> On Tue, Aug 15, 2017 at 11:52:31PM +0200, Toralf Förster wrote:
>> Does a particular Tor server/client will open more than 1
>> connection at a time from to the DirPort ?
> 
> I think we definitely want to support that in the protocol.
> 
> I'm not sure whether it happens right now, but it might.
> 
> But preventing it from happening is likely bad.
> 
> Note that most clients use the ORPort for fetching directory
> stuff, and that's heading towards "all clients" as people upgrade
> and stop using weird configurations. So the DirPort is mainly used
> on authorities (by relays that fetch dir stuff or upload relay
> descriptors), and by auxiliary tools like stem and the various
> metrics project scripts.
> 
> If you're worried about denial of service issues on the DirPort,
> maybe the simple answer is to turn off the DirPort? I think the
> only real impact might have something to do with whether old
> clients believe that you're a usable guard.
> 

understood - removed those iptables rules


- -- 
Toralf
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