Tor Release Candidate now available

by phobos | June 24, 2009

Tor speeds up performance for fast exit relays, and fixes
a bunch of minor bugs.

Changes in version - 2009-06-20
Security fixes:

  • Fix an edge case where a malicious exit relay could convince a
    controller that the client's DNS question resolves to an internal IP
    address. Bug found and fixed by "optimist"; bugfix on

Major performance improvements (on 0.2.0.x):

  • Disable and refactor some debugging checks that forced a linear scan
    over the whole server-side DNS cache. These accounted for over 50%
    of CPU time on a relatively busy exit node's gprof profile. Found
    by Jacob.
  • Disable some debugging checks that appeared in exit node profile

Minor features:

  • Update to the "June 3 2009" ip-to-country file.
  • Do not have tor-resolve automatically refuse all .onion addresses;
    if AutomapHostsOnResolve is set in your torrc, this will work fine.

Minor bugfixes (on 0.2.0.x):

  • Log correct error messages for DNS-related network errors on
  • Fix a race condition that could cause crashes or memory corruption
    when running as a server with a controller listening for log
  • Avoid crashing when we have a policy specified in a DirPolicy or
    SocksPolicy or ReachableAddresses option with ports set on it,
    and we re-load the policy. May fix bug 996.
  • Hidden service clients didn't use a cached service descriptor that
    was older than 15 minutes, but wouldn't fetch a new one either,
    because there was already one in the cache. Now, fetch a v2
    descriptor unless the same descriptor was added to the cache within
    the last 15 minutes. Fixes bug 997; reported by Marcus Griep.

Minor bugfixes (on 0.2.1.x):

  • Don't warn users about low port and hibernation mix when they
    provide a *ListenAddress directive to fix that. Bugfix on
  • When switching back and forth between bridge mode, do not start
    gathering GeoIP data until two hours have passed.
  • Do not complain that the user has requested an excluded node as
    an exit when the node is not really an exit. This could happen
    because the circuit was for testing, or an introduction point.
    Fix for bug 984.

The original announcement can be found at


Please note that the comment area below has been archived.

June 25, 2009


All that is necessary to build a powerful TOR network with an order of magnitude speed increase is the following:

1) Make install of TOR much simpler. Look at the latest ergonomic studies.

2) Prioritize TOR users who are also relays. The biggest complaint about TOR is the speed. (lack of) If you guaranteed users a certain speed priority in USING TOR if they registered as a Relay, then you would give TOR users the "financial incentive" to become TOR relays.

That's all you need to do. Sit back and trust in the power of social networking and self interest to do the rest.

July 03, 2009


Is there a place where one can submitt bugs?
Have not found one, so I discribe it here:

I got an error every time I want to shut down Windows Vista (with SP2).
The Error is:
"Vidalia Kontroll-Panel"
"Die Anweisung in 0x0045048f verweist auf Speicher 0x00000018. Der Vargang read konnte nicht im Speicher durchgefuehrt werden."
Have to click on OK to shut down Vista.

Got the error with:
- Tor Vidalia 0.1.10
- Tor Vidalia 0.1.14
- Tor Vidalia 0.1.14

Any solution?

Regards - Frank