Tor Circuit Question

2009-03-19 Thread Ringo Kamens
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Hey Torland,

I've got a question about the way Tor chooses circuits. Sometimes I use
Thunderbird to send mail via Tor (yeah, I know, DNS leaks) and I notice
some interesting behaviour.

It's my understanding that when Tor receives a request for a port that
the current circuits don't allow (like SMTP), it creates a new circuit
for it. I notice that I can keep trying to send mail for like half an
hour (once a minute) before it finally goes through. What's interesting
is that if I restart Tor and make that request right when it starts up,
it almost always goes through without any difficulty. I'm not bandwidth
limited so it's not like the other circuits are eating all my bandwidth.

Does anybody else experience similar behaviour? Any possible explanations?

Thanks,
Ringo
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Re: Circuit question

2008-07-11 Thread Nick Mathewson
On Sat, Jul 05, 2008 at 12:23:18PM +0300, Evgeniy Minakov wrote:
 Hello,
 I have a question about the circuit construction. The getinfo
 circuit-status sometime returns response without any exit nodes. Which node
 used as exit node in this case?

First, you might be wrong about what nodes are exits.  The Exit flag
in the networkstatus document is not a perfect view of whether a node
can be used as an exit: to actually see whether

Second, not all circuits are built for delivering traffic to the
internet.  Some are built for testing tor servers, some are for
rendezvous points, and so on.  You can see circuits' purposes in
events if extended events are enabled.



Re: Circuit question

2008-07-11 Thread Nick Mathewson
On Fri, Jul 11, 2008 at 11:37:04AM -0400, Nick Mathewson wrote:
 [oops. Didn't end the paragraph.]
 First, you might be wrong about what nodes are exits.  The Exit flag
 in the networkstatus document is not a perfect view of whether a node
 can be used as an exit: to actually see whether
  a node can support a connection to a given service, you need to
check its exit policy.

yrs,
-- 
Nik


Circuit question

2008-07-05 Thread Evgeniy Minakov
Hello,
I have a question about the circuit construction. The getinfo
circuit-status sometime returns response without any exit nodes. Which node
used as exit node in this case?
And sometimes program with traffic goes through tor shows IP that belongs to
exit node which not listed in circuit status. Why?

Sorry for my English. Any information will be really helpful.

Tor 0.2.0.28-rc