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Re: [tor-relays] Running a Relay behind a NAT (was Re: unflagged BAD EXIT nodes)



> On 5 Jul 2015, at 11:37 , teor <teor2345@xxxxxxxxx> wrote:
> 
>> Date: Sat, 4 Jul 2015 19:34:45 -0400
>> From: Ben Serebin <ben@xxxxxxxxxxxxxxxxx>
>> Subject: Re: [tor-relays] unflagged BAD EXIT nodes
>> 
>> ?I'll hijack the response.... I'm a sysadmin, an unloved Windows one. My unwanted $0.02 are:
>> 
>> - Windows installer (omg, Windows, the evil one which if you really want greater adoption is the answer! Oh smokes, someone said it!
> 
> I agree that relay installers, particularly for non-Linux platforms, would help increase Tor's platform diversity. But platform diversity isn't a large part of Tor's threat model, as its impact is mainly felt through vulnerabilities shared by an entire platform.
> 
> Currently, it looks like 90% of the Tor relays are Linux, by count of relays.
> (I believe the weighted bandwidth statistic is much higher than 90%.)
> https://metrics.torproject.org/platforms.html
> 
> One suggestion I've heard, but that isn't ideal, is to download the Tor Browser Bundle, and modify the torrc in it to run a relay.
> 
> That said, a relay operator really needs to know how to download, install, and configure a service on a secured server. So that's one reason a one-click installer is a bad idea.
> 
>> - change the architecture so running behind nat works (this is probably the #1 limit factor for increasing relays). Every tom, dick, and harry could then add bandwidth via every internet circuit. It would be insane!
> 
> Tor relays run quite fine behind a NAT, as long as the NAT box handles the number of connections which tor makes.
> 
> There's even src/tools/tor-fw-helper, which supports NAT-PMP and UPnP.
> It can be configured via the torrc option:
> PortForwarding 1
> 
> Or, you can configure your NAT box to forward ports yourself.

Don't use PortForwarding or src/tools/tor-fw-helper, just configure your NAT box to forward ports. It's much more reliable, and you can see exactly what's configured.

Tim

Tim Wilson-Brown (teor)

teor2345 at gmail dot com
pgp ABFED1AC
https://gist.github.com/teor2345/d033b8ce0a99adbc89c5

teor at blah dot im
OTR D5BE4EC2 255D7585 F3874930 DB130265 7C9EBBC7

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