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ahmedelemam_380's avatar
ahmedelemam_380
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Apr 14, 2019

POST Request problem

I have a simple VIP with HTTP to https redirection, on the web-server I have a subscription button that after you enter your mail it return with a confirmation message that it received your input and that is is the normal case without no VIP but if you apply the VIP it stops working I took a screenshot on both cases and you can find it attached this is before the VIP this is after

 

4 Replies

  • Hi Ahmedelemam,

     

    you screenshoot is just a prove that something went wrong. But it does not allow us to further troubleshoot your problem...

     

    You may want to install a rich HTTP-Analyser (e.g. Fiddler) or a CLI hased HTTP-Request Tool (e.g. CURL) to get a better understanding on which phase the request breaks on the client side (e.g. TCP Layer, SSL Negotiation, HTTP Request, etc.). Try to perform GET request, Request the IP address instead of the HOSTNAME, etc. to check the individual OSI layers...

     

    Depending on the outcome of those tool, you have to either adjust your Client-side Virtual Server settings or analyse further if the request is dying on the server side.

     

    Cheers, Kai

     

  • Hi Kai,

     

    I actually tried to change the HTTP profile to be transparent and it worked but I cannot couple it with SSL profile. this means that F5 sees the request as an error. I will dig deep with fiddler and update you here

     

  • Hi Ahmedelemam,

     

    also please explain your desired setup a little bit more. It will help us to understand your needs and the required Virtual Server settings.

     

    Client Side: Vitual Server port and SSL mode?

     

    LTM specifics: Do you want to enforce certain SSL settings on your LTM? Do you need to inspect/manipulate the HTTP protocol for whatever reason?

     

    Server Side: Pool Member port and SSL mode?

     

    Cheers, Kai

     

  • Kai, Thank you for your reply. Basically, This is a page where you submit a subscription for newsletter and it's required to be published in https. very basic configuration with vserver over port 443 with a client certificate.