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GLM_191985's avatar
Mar 01, 2019

SSL Offloading

So basically when SSL get offloaded , it is in a plain text and it has to be forward to any port which understand plain text so when it's again 443 on server. Does it understand traffic ??

 

5 Replies

  • When SSL is offloaded to the BIG-IP, the traffic must be sent to a port that is listening for and expecting NON encrypted traffic (port 80). If you send it to a back-end server that is expecting 443, or encrypted traffic, it will not understand it.

     

    HERE is some good info on that topic!

     

    Hope that helps! If it does please up-vote and select this answer, it'd be greatly appreciated!

     

    -Dylan

     

    • Michael_Saleem1's avatar
      Michael_Saleem1
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      SSL Termination Mode Description SSL Profiles

       

      SSL Offload The SSL certificate is terminated on the virtual server only. The BIG-IP receives the encrypted traffic, decrypts it and forwards it plain text to the backend servers This reduces processing burden on the backend servers and therefore increases performance CLIENT-SSL PROFILE

       

      SSL Bridging The SSL certificate is terminated on *BOTH* the virtual server and backend servers. This is referred to end-to-end encryption. The BIG-IP receives encrypted traffic, decrypts and re-encrypts it on the backend, forwarding it encrypted to the backend servers CLIENT-SSL PROFILE & SERVER-SSL PROFILE

       

      SSL Pass Through The SSL certificate is terminated on the backend servers only. The BIG-IP simply forwards the SSL encrypted traffic to the backend servers NO SSL PROFILE

       

    • GLM_191985's avatar
      GLM_191985
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      HERE is some good info on that topic!

       

      I don't get what you want to share on this link?

       

      I believe it doesn't matter on backend server , what port it listen on.. Any link with example?