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Re: [tor-relays] What does this message mean in my tor logs?

Thanks Tim. Yes, Iâm running unbound on the server configured to cache directly from the root DNS servers. Itâs worked without issue until just a few days ago. Iâve refreshed the root hints file and restarted the service. It seems better at the momentâ and throughput seems to have improved as well. Iâll continue to monitor and see if there are any other things that need to be adjusted with my unbound conf. 

I appreciate your help!

-Pat



On Jan 28, 2016, at 1:29 PM, Tim Wilson-Brown - teor <teor2345@xxxxxxxxx> wrote:


On 28 Jan 2016, at 12:38, Pat Scharmer <pat@xxxxxxxxxxxx> wrote:

Hi all,

Iâm running a server with a couple of relays and was getting good overall performance (120+ Mbps) up until a couple days ago. For the last two days, the log for one of the two relays is showing thousands of the following message:

[notice] Resolved [scrubbed] which was already resolved ignoring

It seems that tor is getting duplicate DNS responses when it sends out a DNS query.
Are your resolvers configured correctly?

Have you configured a caching DNS resolver on your machine?
(This has been reported to increase throughput substantially.)

Prior to yesterday, I hadnât ever seen this message in my log (and the second relay on this same server/same IP is not showing any such messages). Since this started, my throughput has dropped from around 120Mbps to about 80Mbps. Looking around on the internet, I canât find anything about this message. My server is running tor 2.7.6 on Ubuntu.

A misconfigured DNS resolver is one of the common reasons Exit throughput drops.


Thanks for the fingerprint, Atlas confirms your relay is an Exit.

Tim

Tim Wilson-Brown (teor)

teor2345 at gmail dot com
PGP 968F094B

teor at blah dot im
OTR CAD08081 9755866D 89E2A06F E3558B7F B5A9D14F

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