Re: [tor-bugs] #28367 [Core Tor/Tor]: RFE additional DOS mitigations for exits

["Tor Bug Tracker & Wiki" <blackhole@xxxxxxxxxxxxxx>]

#28367: RFE additional DOS mitigations for exits
--------------------------+----------------------------------
 Reporter:  starlight     |          Owner:  (none)
     Type:  enhancement   |         Status:  closed
 Priority:  Medium        |      Milestone:  Tor: unspecified
Component:  Core Tor/Tor  |        Version:  Tor: unspecified
 Severity:  Normal        |     Resolution:  duplicate
 Keywords:  tor-dos       |  Actual Points:
Parent ID:  #24797        |         Points:
 Reviewer:                |        Sponsor:
--------------------------+----------------------------------
Changes (by teor):

 * status:  new => closed
 * parent:   => #24797
 * version:  Tor: 0.3.4.9 => Tor: unspecified
 * milestone:  Tor: 0.4.0.x-final => Tor: unspecified
 * keywords:   => tor-dos
 * resolution:   => duplicate


Comment:

 Tor will use all available file handles for connections. If your system
 does not support that many connections, then you should reduce the number
 of file handles that tor can use.

 To reduce the number of file handles, use `ulimit -n (limit)` or the
 equivalent daemon launcher option.

 You may also want to set `DisableOOSCheck 0` in your torrc, which causes
 tor to terminate connections at around 90% of the limit, rather than
 failing.

 Socket limits will be better documented in 0.3.5:
 https://gitweb.torproject.org/tor.git/tree/doc/tor.1.txt#n300

 The rest of this ticket is a duplicate of #24797, which stalled in
 needs_revision.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/28367#comment:2>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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