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cymru81's avatar
cymru81
Icon for Altocumulus rankAltocumulus
Aug 20, 2021

SSL reverse proxy

Looking for some advice please. We'd like to reverse proxy an internal server via a public ip address.

 

public VIP has a public certificate issued via a well known CA (client ssl profile) and is listening on port 443, this passes to a pool containing our internal server also on port 443 but this site is using an internal self-signed cert that doesnt match the public cert.

 

LTM logs show the following when client on the internet tries to connect:

 

SSL Handshake failed for TCP 1.2.3.4:64681 -> 5.6.7.8:443

1.2.3.4:64681 -> 5.6.7.8:443: Connection error: ssl_hs_rxhello:10784: alert(70) unsupported version

 

Is there any config we can do to make this work?

LTM
security

5 Replies

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  • oguzy's avatar
    oguzy
    Icon for Cirrostratus rankCirrostratus
    Aug 21, 2021

    Hi cymru81,

     

    As your internal server listens on port 443, have you assigned a server ssl profile like serverssl-insecure-compatible?

  • cymru81's avatar
    cymru81
    Icon for Altocumulus rankAltocumulus
    Aug 23, 2021

    Hi oguzy, yes they are listening, i assigned the profile "serverssl" and still doesnt work as expected?

  • cymru81's avatar
    cymru81
    Icon for Altocumulus rankAltocumulus
    Aug 23, 2021

    yes lots of others VS using same profile without issue. works fine in a browser and renders ok, wondering if the self signed and public cert is the cause of the issues?

    • oguzy's avatar
      oguzy
      Icon for Cirrostratus rankCirrostratus
      Aug 23, 2021

      Hi,

       

      If you have assigned serverssl-insecure-compatible for the server ssl profile, self signed cert should not be an issue.