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0mni avatar 0mni commented on May 22, 2024 1

Is it possible that your ISP is blocking something? Testing on my end from two different servers, it works as expected as well.

If it's a server in a lab on your own network and you're trying to access it through your own external IP, you router could be blocking hairpinning requests. https://en.wikipedia.org/wiki/Hairpinning

It's running on a VPS, have it working with other services going to the same host with no issues.

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louislam avatar louislam commented on May 22, 2024

Cannot reproduce the error. I tested

smtp.gmail.com 587
smtp.gmail.com 465

It is working.

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0mni avatar 0mni commented on May 22, 2024

I don't use Google for e-mail, you can check my server, mail.danlee.ca

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louislam avatar louislam commented on May 22, 2024

I don't use Google for e-mail, you can check my server, mail.danlee.ca

Working properly in my side, did you config it like this?

image

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0mni avatar 0mni commented on May 22, 2024

Confirmed, that is how it is setup, still no go, going to try repull docker container.

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0mni avatar 0mni commented on May 22, 2024

Tested with Google servers, I get the same error. Docker shows no new version to pull. Is it possible you have a patch change in yours?

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louislam avatar louislam commented on May 22, 2024

I also tested it with the latest docker image.

Really strange problem :/
I honestly do not have any ideas. Especially the dns resolved the unknown ip (142.251.2.109) in your side.

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TheGuyDanish avatar TheGuyDanish commented on May 22, 2024

Is it possible that your ISP is blocking something? Testing on my end from two different servers, it works as expected as well.

If it's a server in a lab on your own network and you're trying to access it through your own external IP, you router could be blocking hairpinning requests. https://en.wikipedia.org/wiki/Hairpinning

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0mni avatar 0mni commented on May 22, 2024

I changed it to the IP, and it still gives the google IP in the error message. Just pulled the GIT of the repo and building it, will let you know if any different.

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Panja0 avatar Panja0 commented on May 22, 2024

@0mni

Just checked it and it's working for me as well.
Running a test instance on Docker.

Screenshot - 2021-07-12 at 15 06 22

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0mni avatar 0mni commented on May 22, 2024

Seems like the host is doing something "funky" ... Put in a ticket. Thanks all!

|18:38:09|root@status2:[/opt/uptime-kuma]> traceroute mail.danlee.ca
traceroute to mail.danlee.ca (192.210.243.56), 30 hops max, 60 byte packets
 1  ionica.meet-your-dream.live (185.232.15.122)  0.063 ms  0.038 ms  0.035 ms
 2  23.147.224.21 (23.147.224.21)  0.210 ms  0.273 ms  0.239 ms
 3  border1.ae4.dedipath-lacp.lax014.pnap.net (69.88.129.105)  0.374 ms  0.360 ms  0.310 ms
 4  core1.po1-40g-bbnet1.lax012.pnap.net (216.52.255.14)  1.371 ms core1.po2-40g-bbnet2.lax012.pnap.net (216.52.255.73)  1.600 ms  1.605 ms
 5  e0-11.cr1.lax2.us.unitasglobal.net (198.232.115.137)  1.559 ms  2.127 ms  1.756 ms
 6  ip4.gtt.net (209.120.155.53)  0.804 ms  0.847 ms  0.806 ms
 7  ae3.cr1-buf1.ip4.gtt.net (89.149.185.197)  56.253 ms be2930.ccr21.elp01.atlas.cogentco.com (154.54.42.78)  21.336 ms ae3.cr1-buf1.ip4.gtt.net (89.149.185.197)  56.689 ms
 8  78.152.61.29 (78.152.61.29)  63.353 ms 78.152.57.87 (78.152.57.87)  62.554 ms 78.152.61.29 (78.152.61.29)  63.275 ms
 9  * * *
10  * * *
11  * * *
12  mail.danlee.ca (192.210.243.56)  62.724 ms  62.736 ms  62.810 ms
|18:38:33|root@status2:[/opt/uptime-kuma]> telnet mail.danlee.ca 587
Trying 192.210.243.56...
telnet: Unable to connect to remote host: No route to host
|18:38:38|root@status2:[/opt/uptime-kuma]> telnet mail.danlee.ca 80
Trying 192.210.243.56...
Connected to mail.danlee.ca.
Escape character is '^]'.
^]
HTTP/1.1 400 Bad Request
Server: nginx
Date: Mon, 12 Jul 2021 22:38:55 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 150
Connection: close
X-Frame-Options: SAMEORIGIN

<html>
<head><title>400 Bad Request</title></head>
<body>
<center><h1>400 Bad Request</h1></center>
<hr><center>nginx</center>
</body>
</html>
Connection closed by foreign host.

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