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TLS handshake issue

yche276 August 24, 2019

Our bamboo server has two ports for https connection which are 443 and 8443. I used curl to test the connection. 8443 works as expected, the tls connection can be established but not 443. the tls handshake failed at the server hello stage.

 

when I send the request through port 443. I have this error. 

* ALPN, offering h2
* ALPN, offering http/1.1
* Cipher selection: some string
* successfully set certificate verify locations:
* CAfile: path to pem file
CApath: none
* TLSv1.2 (OUT), TLS handshake, Client hello (1):
* error:1400410B:SSL routines:CONNECT_CR_SRVR_HELLO:wrong version number
* stopped the pause stream!
* Closing connection 0
curl: (35) error:1400410B:SSL routines:CONNECT_CR_SRVR_HELLO:wrong version number

 

any ideas for troubleshooting? thanks in advance!

 

1 answer

0 votes
Daniel Eads
Atlassian Team
Atlassian Team members are employees working across the company in a wide variety of roles.
August 24, 2019

Hey there!

This is likely a misconfiguration at your reverse proxy. You've got http/2 enabled so I'm guessing it's either nginx or Apache. Would you be able to post the configuration for the reverse proxy? Blank out your server name and certificates for sure but it would be helpful to see what cyphers you've got enabled.

Given the test against 8443 went ok though, looks like you've got Bamboo configured correctly! I'm hoping we can get that reverse proxy sorted out for you :)

Cheers,
Daniel

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