Session table with Virtual Command

Another option would be to name the virtual server with the FQDN that is in DNS and then parse [virtual name] to get the correct hostname. You could avoid manually configuring the IP to hostname mappings with this. A caveat is that you can't rename virtual servers via the GUI. The example below uses the virtual server name up to the first underscore:

virtual www.example.com_http_vs {
   destination 10.1.0.15:80
   ip protocol tcp
   rules vs_name_to_redirect_rule
   profiles {
      http {}
      tcp {}
   }
}

when HTTP_REQUEST {

   log local0. "parsed https://[getfield [virtual name] _ 1][HTTP::uri]"
   HTTP::redirect "https://[getfield [virtual name] _ 1][HTTP::uri]"
}

Aaron