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Re: [tor-bugs] #20509 [Core Tor/Tor]: Directory authorities should take away Guard flag from relays with #20499 bug
#20509: Directory authorities should take away Guard flag from relays with #20499
bug
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Reporter: arma | Owner:
Type: defect | Status: new
Priority: Medium | Milestone: Tor: 0.2.9.x-final
Component: Core Tor/Tor | Version:
Severity: Normal | Resolution:
Keywords: 028-backport, easy | Actual Points:
Parent ID: | Points:
Reviewer: | Sponsor:
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Comment (by arma):
Replying to [comment:7 teor]:
> Hang on, didn't we have a bug where clients would pick relays as their
guard regardless of whether they had the Guard flag? How many versions ago
was that?
That was bug #17772 and its fix went into 0.2.7.6, which came out before
0.2.8.1-alpha. Whereas directory guards went into 0.2.4.8-alpha. So
clients running 0.2.4.x and 0.2.5.x and 0.2.6.x will have the #17772 bug.
But I think they have bigger problems.
> And do clients automatically get new guards when their existing guards
lose the Guard flag? Or do they keep their old guards until they rotate?
Great question. #17773 is the complicated mess you want to read to answer
it. I *think* the summary of that ticket is that clients do in fact go
find another Guard if their current one loses its flag. And we were
thinking of changing that behavior, because it introduces other problems,
but we haven't yet. Lucky us here.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20509#comment:9>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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