Re: [tor-relays] New month, new TOR exit servers, need ELI5 pls

2016-05-22 Thread Tim Wilson-Brown - teor

> On 22 May 2016, at 11:30, Random Tor Node Operator  
> wrote:
> 
> On 05/22/2016 04:00 PM, Markus Koch wrote:
>> Yes, but how many ports do I have to open to be "useful"? In an
>> extreme case: Would it help just to forward port 80 and 433?
> 
> I think the most spartanic Exit Policy is at the bottom of [1]:
> 
> ExitPolicy accept *:53# DNS
> ExitPolicy accept *:80# HTTP
> ExitPolicy accept *:443   # HTTPS
> ExitPolicy reject *:*
> 
> 
> What is useful and what isn't is probably a matter of the eye of the
> beholder.
> 
> In my opinion, a http/https/dns-only exit is surely still more useful
> than not exiting at all.

It's worth noting that Exits do DNS on behalf of clients that ask to connect to 
a domain name, regardless of whether the ExitPolicy includes port 53. So port 
53 is only useful for clients that want to run their own DNS over TCP, or use 
port 53 for something else.

Tim

Tim Wilson-Brown (teor)

teor2345 at gmail dot com
PGP 968F094B
ricochet:ekmygaiu4rzgsk6n





signature.asc
Description: Message signed with OpenPGP using GPGMail
___
tor-relays mailing list
tor-relays@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays


Re: [tor-relays] New month, new TOR exit servers, need ELI5 pls

2016-05-22 Thread Markus Koch
Port 6667 ... long time no see
thank you for the information!

markus


2016-05-22 16:10 GMT+02:00 Felix Eckhofer :
> Hey.
>
> Am 22.05.2016 16:00, schrieb Markus Koch:
>>
>> Yes, but how many ports do I have to open to be "useful"? In an
>> extreme case: Would it help just to forward port 80 and 433?
>
>
> It would still be useful and receive the "Exit" flag:
>
>"Exit" -- A router is called an 'Exit' iff it allows exits to at
>least two of the ports 80, 443, and 6667 and allows exits to at
>least one /8 address space.
>
>  -- https://gitweb.torproject.org/torspec.git/tree/dir-spec.txt#n2133
>
>
>
> felix
> ___
> tor-relays mailing list
> tor-relays@lists.torproject.org
> https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
___
tor-relays mailing list
tor-relays@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays


Re: [tor-relays] New month, new TOR exit servers, need ELI5 pls

2016-05-22 Thread Felix Eckhofer

Hey.

Am 22.05.2016 16:00, schrieb Markus Koch:

Yes, but how many ports do I have to open to be "useful"? In an
extreme case: Would it help just to forward port 80 and 433?


It would still be useful and receive the "Exit" flag:

   "Exit" -- A router is called an 'Exit' iff it allows exits to at
   least two of the ports 80, 443, and 6667 and allows exits to at
   least one /8 address space.

 -- https://gitweb.torproject.org/torspec.git/tree/dir-spec.txt#n2133



felix
___
tor-relays mailing list
tor-relays@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays


Re: [tor-relays] New month, new TOR exit servers, need ELI5 pls

2016-05-22 Thread Markus Koch
2016-05-22 16:30 GMT+02:00 Random Tor Node Operator :
> On 05/22/2016 04:00 PM, Markus Koch wrote:
>> Yes, but how many ports do I have to open to be "useful"? In an
>> extreme case: Would it help just to forward port 80 and 433?
>
> I think the most spartanic Exit Policy is at the bottom of [1]:
>
> ExitPolicy accept *:53# DNS
> ExitPolicy accept *:80# HTTP
> ExitPolicy accept *:443   # HTTPS
> ExitPolicy reject *:*
>
>
> What is useful and what isn't is probably a matter of the eye of the
> beholder.
>
> In my opinion, a http/https/dns-only exit is surely still more useful
> than not exiting at all.

Good point. Stupid question: Do we know what services the users use most?

>
>
> ___
> tor-relays mailing list
> tor-relays@lists.torproject.org
> https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
>
___
tor-relays mailing list
tor-relays@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays


Re: [tor-relays] New month, new TOR exit servers, need ELI5 pls

2016-05-22 Thread Random Tor Node Operator
On 05/22/2016 04:00 PM, Markus Koch wrote:
> Yes, but how many ports do I have to open to be "useful"? In an
> extreme case: Would it help just to forward port 80 and 433?

I think the most spartanic Exit Policy is at the bottom of [1]:

ExitPolicy accept *:53# DNS
ExitPolicy accept *:80# HTTP
ExitPolicy accept *:443   # HTTPS
ExitPolicy reject *:*


What is useful and what isn't is probably a matter of the eye of the
beholder.

In my opinion, a http/https/dns-only exit is surely still more useful
than not exiting at all.



signature.asc
Description: OpenPGP digital signature
___
tor-relays mailing list
tor-relays@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays


Re: [tor-relays] New month, new TOR exit servers, need ELI5 pls

2016-05-22 Thread Tristan
You can close port 22 by adding it to your exit policy. The syntax would be
something like

ExitPolicy reject *:22

You should put this towards the top of the exit policy rules so it isn't
overridden by other rules.
On May 22, 2016 8:34 AM, "Markus Koch"  wrote:

As I told you guys ITLDC.com kicked 3 of my exit servers last month.
Just got 3 new ones, hosted by DigitalOcean, Hostwinds and soon
virtualniserverlite.

If things go wrong (and with my luck they will) how many and which
ports do I have to forward to be useful as a exit node?

eg: I get lots of abuse of port 22, can I close it and the TOR network
will for itself find out that sending me ssh traffic is a bad idea?

markus
___
tor-relays mailing list
tor-relays@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
___
tor-relays mailing list
tor-relays@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays


Re: [tor-relays] New month, new TOR exit servers, need ELI5 pls

2016-05-22 Thread Markus Koch
Yes, but how many ports do I have to open to be "useful"? In an
extreme case: Would it help just to forward port 80 and 433?



2016-05-22 15:51 GMT+02:00 Random Tor Node Operator :
> I don't have any exit relays, but my understanding is that you should
> use torrc, and only torrc, to define which outgoing ports you want to be
> reachable.
>
> Do not block or otherwise interfere with anything which you allow in
> torrc, because that may get you the BadExit flag when discovered.
>
> A Reduced Exit Policy[1] may be what you are looking for.
>
> [1] https://trac.torproject.org/projects/tor/wiki/doc/ReducedExitPolicy
>
>
> On 05/22/2016 03:34 PM, Markus Koch wrote:
>> If things go wrong (and with my luck they will) how many and which
>> ports do I have to forward to be useful as a exit node?
>>
>> eg: I get lots of abuse of port 22, can I close it and the TOR network
>> will for itself find out that sending me ssh traffic is a bad idea?
>
>
>
> ___
> tor-relays mailing list
> tor-relays@lists.torproject.org
> https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
>
___
tor-relays mailing list
tor-relays@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays


Re: [tor-relays] New month, new TOR exit servers, need ELI5 pls

2016-05-22 Thread Random Tor Node Operator
I don't have any exit relays, but my understanding is that you should
use torrc, and only torrc, to define which outgoing ports you want to be
reachable.

Do not block or otherwise interfere with anything which you allow in
torrc, because that may get you the BadExit flag when discovered.

A Reduced Exit Policy[1] may be what you are looking for.

[1] https://trac.torproject.org/projects/tor/wiki/doc/ReducedExitPolicy


On 05/22/2016 03:34 PM, Markus Koch wrote:
> If things go wrong (and with my luck they will) how many and which
> ports do I have to forward to be useful as a exit node?
> 
> eg: I get lots of abuse of port 22, can I close it and the TOR network
> will for itself find out that sending me ssh traffic is a bad idea?




signature.asc
Description: OpenPGP digital signature
___
tor-relays mailing list
tor-relays@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays


[tor-relays] New month, new TOR exit servers, need ELI5 pls

2016-05-22 Thread Markus Koch
As I told you guys ITLDC.com kicked 3 of my exit servers last month.
Just got 3 new ones, hosted by DigitalOcean, Hostwinds and soon
virtualniserverlite.

If things go wrong (and with my luck they will) how many and which
ports do I have to forward to be useful as a exit node?

eg: I get lots of abuse of port 22, can I close it and the TOR network
will for itself find out that sending me ssh traffic is a bad idea?

markus
___
tor-relays mailing list
tor-relays@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays