[tor-talk] How important is it that the MyFamily option be set correctly?

Pascal Pascal666 at Users.SourceForge.Net
Mon Dec 5 22:17:16 UTC 2011

Removing relays in the same /16 leaves me with 120.  Matching contact 
strings based solely on alphanumeric characters adds 4.  Adding a 
unidirectional association check brings me up to 142.  Adding a search 
for similarly named relays (such as Pascal0 and Pascal1) brings the 
total to 171.  Keep in mind there are probably some listed in here that 
are not really related.

I have posted the script and its output at


On 12/5/2011 7:03 AM, Roger Dingledine wrote:
> On Sun, Dec 04, 2011 at 09:53:01PM -0600, Pascal wrote:
>> While looking through http://torstatus.blutmagie.de I noticed a couple
>> relays that appear to be related but were not listed in each others'
>> family.  Out of curiosity I whipped up a quick Perl script to check all
>> relays with identical contact info to see if they are listed in each
>> others' family.  On this basis alone I found 142 relays that are not
>> correctly listed.
> Can you post the script / results somewhere?
> If the relays are in the same /16 network as each other then setting
> myfamily is redundant (but still pleasant).
> If they're not, then it actually will make a difference.
> How important it is is still a matter of debate -- on the one hand,
> we want to let clients avoid building circuits that use more than one
> relay operated by the same individual, and the closer we can get to that
> ideal the better. On the other hand, real bad guys aren't going to make
> it obvious when they run more than one relay.
> Thanks,
> --Roger

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