Hello dear MPAN,

thank you for being so detailed with all the trace-routes.

Seems like your upstream provider is blocking traffic to:

moria1
gabelmoo
longclaw
faravahar


This should never happen, can you contact your provider, and the last online servers e-mail address (just WHOIS the IP-Address and there should be a NOC e-mail address), and politely ask why they drop your traffic?

On a bright side, your relay is back online on Atlas/Metrics, even though the graph shows that it was apparently "offline" for more than 6 days.

Thank you for reporting this.

-GH

On Wednesday, October 30th, 2024 at 10:35 PM, mpan tor-1qnuaylp@mpan.pl wrote:

NOTE: this email has been written around 2024-10-30 19:00 UTC, about
2.5 hours ago. As I was testing stuff, suddenly I got flags and some
traffic on my node. It also appeared back in atlas as mysteriously as it
did disappear. Nonetheless I’m sending the email, hoping it is helpful,
and will report back in a week.

Can you check to see if your relay is in a similar situation?

In particular, the situation to look for is "Tor process is
still running fine from your perspective, but, relay-search
(https://atlas.torproject.org/) says you are no longer running."

Hello, I see the same with my node.

Prompted by a fall in traffic I checked relay-search a few days ago
and found the relay is no longer listed. Going through the logs it seems
there is no new circuits being made since October 23. In Nyx I see at
most a few incoming and outgoing connections.

The node is mpan11 92A125B9AB491AFC084E4257B552D0FB56090CB3, and this
is the first time in about 10 years I experience anything like that.

If your relay is in this situation, the next step is to check your Tor
logs, try to rule out other issues like firewall rules on your side,
and then (if you're able) to start exploring traceroutes to the directory
authority IP addresses vs other addresses. If you need more direct help,
we can help you debug or answer other questions on #tor-relays on IRC.

Traceroutes from the node listed in [1]. From two other hosts
(French, German VPS) all addresses except maatuska are accessible, and
the final hops are similar. I asked a friend (same ISP, city) to ping
all the addresses that don’t respond and they confirmed no ping
responses. However, maatuska seems to respond to ICMP pings.

If that helps, on October 23 I see some entries[2] I don’t recall
ever seeing. This did happen when my network connection died for about
10 minutes around 01:20. At 22 I had to reboot the system and since then
the node reports 0 circuits. But that may be just a coincidence and the
responses might’ve been ISP’s modem interfering in some way.

____
[1] Traceroutes, to 30 hops. ‘…’ indicates no more replies:
-----------------------------------------------------------------------
# moria1
$ tracepath -b 128.31.0.39
1?: [LOCALHOST] pmtu 1500
1: _gateway (192.168.1.1) 0.499ms
2: war-bng10.neo.tpnet.pl (83.1.5.194) 15.434ms
3: no reply

# tor26
$ tracepath -b 217.196.147.77
1?: [LOCALHOST] pmtu 1500
1: _gateway (192.168.1.1) 0.359ms
1: _gateway (192.168.1.1) 3.782ms
2: war-bng10.neo.tpnet.pl (83.1.5.194) 3.833ms
3: war-r21.tpnet.pl (80.50.19.25) 2.383ms asymm 4
4: win-b2-link.ip.twelve99.net (62.115.153.224) 12.699ms
5: as33891-ic-331887.ip.twelve99-cust.net (62.115.13.142) 16.619ms
asymm 6
6: ae5-2058.slz10.core-backbone.com (81.95.2.50) 19.534ms asymm 9
7: core-backbone.conova.at (5.56.17.86) 17.129ms asymm 12
8: 149.3.164.138 (149.3.164.138) 18.783ms asymm 13
9: reliant-gw.noreply.org (185.69.162.222) 27.474ms asymm 13
10: tor.cypherpunks.eu (217.196.147.77) 30.815ms !H

# dizum
$ tracepath -b 45.66.35.11
1?: [LOCALHOST] pmtu 1500
1: _gateway (192.168.1.1) 0.739ms
1: _gateway (192.168.1.1) 0.716ms
2: war-bng10.neo.tpnet.pl (83.1.5.194) 5.480ms
3: war-r21.tpnet.pl (80.50.19.25) 4.162ms asymm 4
4: win-b2-link.ip.twelve99.net (62.115.153.224) 15.974ms
5: win-bb2-link.ip.twelve99.net (62.115.114.182) 22.121ms asymm 6
6: ffm-bb2-link.ip.twelve99.net (62.115.138.22) 26.017ms asymm 8
7: adm-bb2-link.ip.twelve99.net (62.115.137.222) 30.844ms asymm 9
8: no reply
9: novoserve-ic-354347.ip.twelve99-cust.net (62.115.188.167) 31.944ms
asymm 8
10: no reply
11: no reply
12: no reply
13: tor.dizum.com (45.66.35.11) 34.349ms reached

# gabelmoo
$ tracepath -b 131.188.40.189
1?: [LOCALHOST] pmtu 1500
1: _gateway (192.168.1.1) 2.812ms
1: _gateway (192.168.1.1) 1.120ms
2: war-bng10.neo.tpnet.pl (83.1.5.194) 11.639ms
3: no reply

# dannenberg
$ tracepath -b 193.23.244.244
1?: [LOCALHOST] pmtu 1500
1: _gateway (192.168.1.1) 0.563ms
2: war-bng10.neo.tpnet.pl (83.1.5.194) 5.746ms
3: war-r22.tpnet.pl (80.50.20.25) 6.182ms
4: win-b2-link.ip.twelve99.net (213.248.103.4) 13.986ms
5: win-bb1-link.ip.twelve99.net (62.115.114.184) 16.536ms asymm 6
6: mcn-b1-link.ip.twelve99.net (62.115.136.41) 20.223ms asymm 7
7: mcn-b3-link.ip.twelve99.net (62.115.127.30) 19.945ms
8: interlinkgmbh-ic-381330.ip.twelve99-cust.net (62.115.186.123)
18.466ms asymm 9
9: r1-str1-de.as5405.net (94.103.180.27) 62.334ms
(This broken router returned corrupted payload) asymm 15
10: r4-fra2-de.as5405.net (94.103.180.11) 38.532ms (This
broken router returned corrupted payload) asymm 14
11: r4-fra1-de.as5405.net (94.103.180.7) 36.582ms (This
broken router returned corrupted payload) asymm 12
12: r3-ber1-de.as5405.net (94.103.180.2) 37.920ms asymm 11
13: cust-syseleven.r3-ber1-de.as5405.net (45.153.82.11) 38.488ms asymm 12
14: ae0-0.blu1-r2.de.syseleven.net (109.68.226.26) 39.453ms asymm 16
15: ae2-0.bak1-r1.syseleven.net (109.68.226.23) 41.234ms asymm 14
16: no reply
17: dannenberg.torauth.de (193.23.244.244) 34.575ms reached

# maatuska
$ tracepath -b 171.25.193.9
1?: [LOCALHOST] pmtu 1500
1: _gateway (192.168.1.1) 3.200ms
1: _gateway (192.168.1.1) 0.674ms
2: war-bng10.neo.tpnet.pl (83.1.5.194) 8.933ms
3: war-r21.tpnet.pl (80.50.19.25) 5.954ms asymm 4
4: win-b2-link.ip.twelve99.net (62.115.153.224) 12.257ms
5: win-bb2-link.ip.twelve99.net (62.115.114.182) 13.424ms asymm 6
6: ffm-bb2-link.ip.twelve99.net (62.115.138.22) 24.160ms asymm 9
7: kbn-bb6-link.ip.twelve99.net (62.115.114.94) 40.453ms asymm 10
8: kbn-b1-link.ip.twelve99.net (62.115.143.7) 35.856ms
9: globalconnect-ic-368141.ip.twelve99-cust.net (62.115.185.221) 37.018ms
10: 146.247.201.152 (146.247.201.152) 44.090ms asymm 9
11: no reply
12: no reply
13: 195.225.184.150 (195.225.184.150) 48.578ms asymm 15
14: rs2.dfri.net (171.25.193.225) 46.928ms asymm 16
15: rs2.dfri.net (171.25.193.225) 48.011ms pmtu 1420
15: no reply

# longclaw
$ tracepath -b 199.58.81.140
1?: [LOCALHOST] pmtu 1500
1: _gateway (192.168.1.1) 0.679ms
1: _gateway (192.168.1.1) 1.245ms
2: war-bng10.neo.tpnet.pl (83.1.5.194) 5.817ms
3: no reply

# bastet
$ tracepath -b 204.13.164.118
1?: [LOCALHOST] pmtu 1500
1: _gateway (192.168.1.1) 1.010ms
1: _gateway (192.168.1.1) 0.293ms
2: war-bng10.neo.tpnet.pl (83.1.5.194) 6.126ms
3: war-r21.tpnet.pl (80.50.19.25) 4.701ms asymm 4
4: win-b2-link.ip.twelve99.net (213.248.103.4) 14.664ms
5: be1300.ccr51.vie01.atlas.cogentco.com (130.117.14.181) 26.007ms
asymm 7
6: be2974.ccr21.muc03.atlas.cogentco.com (154.54.58.5) 27.318ms asymm 9
7: be5516.ccr41.fra05.atlas.cogentco.com (154.54.62.121) 26.305ms
asymm 8
8: be5340.ccr42.ams03.atlas.cogentco.com (154.54.62.210) 30.990ms
asymm 9
9: be12194.ccr41.lon13.atlas.cogentco.com (154.54.56.93) 122.662ms
asymm 13
10: be3042.ccr21.ymq01.atlas.cogentco.com (154.54.44.162) 129.524ms
asymm 11
11: be3393.ccr31.bos01.atlas.cogentco.com (154.54.47.141) 125.119ms
12: be3600.ccr22.alb02.atlas.cogentco.com (154.54.0.221) 125.220ms asymm 10
13: be2718.ccr42.ord01.atlas.cogentco.com (154.54.7.129) 137.118ms asymm 10
14: be2717.ccr41.ord01.atlas.cogentco.com (154.54.6.221) 130.040ms asymm 10
15: be3802.ccr21.den01.atlas.cogentco.com (154.54.165.77) 144.294ms
asymm 10
16: be5456.ccr32.slc01.atlas.cogentco.com (154.54.45.166) 185.868ms
asymm 11
17: be5823.ccr21.sea02.atlas.cogentco.com (154.54.167.146) 199.296ms
asymm 11
18: be5823.ccr21.sea02.atlas.cogentco.com (154.54.167.146) 194.850ms
asymm 11
19: bastet.readthefinemanual.net (204.13.164.118) 200.905ms reached

# faravahar
$ tracepath -b 216.218.219.41
1?: [LOCALHOST] pmtu 1500
1: _gateway (192.168.1.1) 1.493ms
1: _gateway (192.168.1.1) 0.774ms
2: war-bng10.neo.tpnet.pl (83.1.5.194) 7.927ms
3: no reply

-----------------------------------------------------------------------

[2] Logs entries before the issue started:
-----------------------------------------------------------------------
Oct 23 01:27:03 null Tor[368865]: Received http status code 302 ("Moved
Temporarily") from server 217.196.147.77:80 while fetching consensus
directory.
Oct 23 01:27:55 null Tor[368865]: Received http status code 302 ("Moved
Temporarily") from server 204.13.164.118:80 while fetching consensus
directory.
Oct 23 01:27:55 null Tor[368865]: Received http status code 302 ("Moved
Temporarily") from server 204.13.164.118:80 while fetching consensus
directory.
Oct 23 01:28:55 null Tor[368865]: Received http status code 302 ("Moved
Temporarily") from server 217.196.147.77:80 while fetching consensus
directory.
-----------------------------------------------------------------------

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