Unable to connect to TeamCity through some subnet

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Mihail Politaev
Created

Hello community!

Issue in unable to connect to our TeamCity server from 10.10.16.0/24 subnet to http://172.30.21.15:8111/ but from another subnet connection is ok. Maybe there are some application level restriction in TeamCity?

 

I think so because telnet and traceroute from 10.10.16.0/24 subnet was successful.

  1. ➜  ~ traceroute 172.30.21.15
  2. traceroute to 172.30.21.15 (172.30.21.15), 30 hops max, 60 byte packets
  3.  1  10.10.16.1 (10.10.16.1)  0.318 ms  0.290 ms  0.681 ms
  4.  2  * * *
  5.  3  * * *
  6.  4  172.30.21.15 (172.30.21.15)  154.501 ms  154.465 ms  154.480 ms

 

  1. ➜  ~ telnet 172.30.21.15 8111 
  2. Trying 172.30.21.15...
  3. Connected to 172.30.21.15.
  4. Escape character is '^]'.

 

But curl is not:

  1. ➜  ~ curl http://172.30.21.15:8111
  2. curl: (56) Recv failure: Connection reset by peer

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Denis Lapuente
Created

Hi Mihail,

As far as I can tell, we don't have any restriction on that regard. It's particularly strange as if telnet works, the browser should basically work as well. I'm not particularly sure why curl would fail, but might it be your network stopping that traffic while allowing for telnet?

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Mihail Politaev
Created

Denis yes, it was related to VPN connection issue as the same problem is in another application. Thank you for answer.

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