SSL reverse proxy

[cymru81]

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?

[oguzy]

Hi cymru81,

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

[cymru81]

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

[oguzy]

Hi cymru81,

You may check the following page: Error Message: 01260009:4: Connection error: <ssl_function>:<function_id>: <error_reason> (<reason_c...

Do you have any other virtual server assigned the same client-ssl-profile? If so, do you see the similar error on that virtual server? Have you ever tried with another client (browser, mobil etc)?

I also suggest Qualys SSL Labs page for certificate status?

Have a nice day.

[cymru81]

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]

Hi,

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