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THE_BLUE's avatar
THE_BLUE
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May 28, 2023

Secure connection failed - pool 443

i have 2 vs of port 443 and 80 , and pool of 443 and 80 too . from server itself, the website works fine with both ports . But from waf if i enable the vs with pool 443 i receive " secure connection faild" and if i replace it with pool 80 it's work fine. 

What is the issue with 443? i have enable the ssl profile from both side . how to troubleshoot this iisue? 

  • Hi THE_BLUE,

    If server side ssl, server-ssl profile is required. There may be a issue with the cipher configuration.

    Can you try sending a curl request to the server from the F5 command line?

    curl -kv "https://serverip" -H "Host: example.com"

    If the command returns an SSL error, there may be SNI problem.
    https://support.f5.com/csp/article/K41600007

    • THE_BLUE's avatar
      THE_BLUE
      Icon for Cirrostratus rankCirrostratus

      with port 443 i have tried with server ssl and without and i get the same result .

      i will try now to use the mentiond command .

    • THE_BLUE's avatar
      THE_BLUE
      Icon for Cirrostratus rankCirrostratus

      * TLSv1.2 (OUT), TLS header, Certificate Status (22):
      * TLSv1.2 (OUT), TLS handshake, Client hello (1):
      * Unknown SSL protocol error in connection to serverip:443
      * Closing connection 0
      curl: (35) Unknown SSL protocol error in connection to serverip:443