new warning with Tor 0.3.4.0-alpha-dev (git-efc105716283bbdf)
This happenes here now with that version usually once a day. Feb 19 18:59:00.000 [warn] Our clock is 1 minutes, 1 seconds behind the time published in the consensus network status document (2018-02-19 18:00:00 UTC). Tor needs an accurate clock to work correctly. Please check your time and date settings! Feb 19 18:59:00.000 [warn] Received microdesc flavor consensus with skewed time (CONSENSUS): It seems that our clock is behind by 1 minutes, 1 seconds, or that theirs is ahead. Tor requires an accurate clock to work: please check your time, timezone, and date settings. -- Toralf PGP C4EACDDE 0076E94E
NTP? On Mon, Feb 19, 2018 at 12:32 PM, Toralf Förster <toralf.foerster@gmx.de> wrote:
This happenes here now with that version usually once a day.
Feb 19 18:59:00.000 [warn] Our clock is 1 minutes, 1 seconds behind the time published in the consensus network status document (2018-02-19 18:00:00 UTC). Tor needs an accurate clock to work correctly. Please check your time and date settings! Feb 19 18:59:00.000 [warn] Received microdesc flavor consensus with skewed time (CONSENSUS): It seems that our clock is behind by 1 minutes, 1 seconds, or that theirs is ahead. Tor requires an accurate clock to work: please check your time, timezone, and date settings.
-- Toralf PGP C4EACDDE 0076E94E
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On 02/19/2018 07:32 PM, Toralf Förster wrote:
This happenes here now with that version usually once a day.
Feb 19 18:59:00.000 [warn] Our clock is 1 minutes, 1 seconds behind the time published in the consensus network status document (2018-02-19 18:00:00 UTC). Tor needs an accurate clock to work correctly. Please check your time and date settings! Feb 19 18:59:00.000 [warn] Received microdesc flavor consensus with skewed time (CONSENSUS): It seems that our clock is behind by 1 minutes, 1 seconds, or that theirs is ahead. Tor requires an accurate clock to work: please check your time, timezone, and date settings. FWIW I do have a watchdog scripted which sends me an email if this happens. That watchdog contains these sequence :
echo "date -u" date -u echo echo "cat </dev/tcp/time.nist.gov/13" cat </dev/tcp/time.nist.gov/13 echo echo "ntpdate -q 2.de.pool.ntp.org" ntpdate -q 2.de.pool.ntp.org echo so I'm convinved that this output today : date -u Tue Feb 27 14:59:00 UTC 2018 cat </dev/tcp/time.nist.gov/13 ntpdate -q 2.de.pool.ntp.org server 2a01:4f8:110:30e1::9, stratum 2, offset 0.001730, delay 0.02591 server 2a01:4f8:202:3328::c10c, stratum 2, offset 0.000137, delay 0.02602 server 2a03:4000:1c:c8::1, stratum 2, offset -0.000501, delay 0.02858 server 2001:638:504:2000::32, stratum 2, offset 0.003275, delay 0.04170 server 46.4.106.197, stratum 2, offset 0.000111, delay 0.02597 server 78.46.189.152, stratum 3, offset 0.000517, delay 0.02603 server 195.50.171.101, stratum 2, offset 0.000814, delay 0.03128 server 62.116.162.126, stratum 2, offset -0.000336, delay 0.03647 27 Feb 15:59:10 ntpdate[3213]: adjust time server 2a01:4f8:110:30e1::9 offset 0.001730 sec Feb 27 15:59:00.000 [warn] Our clock is 1 minutes, 1 seconds behind the time published in the consensus network status document (2018-02-27 15:00:00 UTC). Tor needs an accurate clock to work correctly. Please check your time and date settings! Feb 27 15:59:00.000 [warn] Received microdesc flavor consensus with skewed time (CONSENSUS): It seems that our clock is behind by 1 minutes, 1 seconds, or that theirs is ahead. Tor requires an accurate clock to work: please check your time, timezone, and date settings. indicates that the remote side is wrong. -- Toralf PGP C4EACDDE 0076E94E
On 28 Feb 2018, at 04:18, Toralf Förster <toralf.foerster@gmx.de> wrote:
so I'm convinved that this output today :
date -u Tue Feb 27 14:59:00 UTC 2018
cat </dev/tcp/time.nist.gov/13
ntpdate -q 2.de.pool.ntp.org server 2a01:4f8:110:30e1::9, stratum 2, offset 0.001730, delay 0.02591 … 27 Feb 15:59:10 ntpdate[3213]: adjust time server 2a01:4f8:110:30e1::9 offset 0.001730 sec
Feb 27 15:59:00.000 [warn] Our clock is 1 minutes, 1 seconds behind the time published in the consensus network status document (2018-02-27 15:00:00 UTC). Tor needs an accurate clock to work correctly. Please check your time and date settings! Feb 27 15:59:00.000 [warn] Received microdesc flavor consensus with skewed time (CONSENSUS): It seems that our clock is behind by 1 minutes, 1 seconds, or that theirs is ahead. Tor requires an accurate clock to work: please check your time, timezone, and date settings.
indicates that the remote side is wrong.
The message is accurate, although it might be 1 second off: "It seems that our clock is behind by 1 minutes, 1 seconds, or that theirs is ahead" It is possible that an authority is ahead by 1 minute + download time. Or that there is a bug in the relevant Tor code. Here are the questions I'd like to answer before opening a ticket: Which authority did your Tor fetch the consensus from? Is that authority's clock wrong? Does this error happen often on your relay? T
On Mon, Feb 19, 2018 at 07:32:19PM +0100, Toralf Förster wrote:
Feb 19 18:59:00.000 [warn] Our clock is 1 minutes, 1 seconds behind the time published in the consensus network status document (2018-02-19 18:00:00 UTC). Tor needs an accurate clock to work correctly. Please check your time and date settings! Feb 19 18:59:00.000 [warn] Received microdesc flavor consensus with skewed time (CONSENSUS): It seems that our clock is behind by 1 minutes, 1 seconds, or that theirs is ahead. Tor requires an accurate clock to work: please check your time, timezone, and date settings.
I think we have an answer to this mystery now: https://trac.torproject.org/25756 Woo, --Roger
participants (4)
-
eric gisse -
Roger Dingledine -
teor -
Toralf Förster