Remote Host IIS 6

[TomNM Profile]

We do reverse DNS lookups on IIS 6. I'd really like to use isapi rewrite 2 to take advantage of what is found in the remote host. However, isapi still sees the IP address at that point. Is there a way to evaluate the looked-up host name from isapi?

Here's the example rule to block all remote_host containing comcast (not our real goal):

RewriteCond %REMOTE_HOST .*(?:comcast).*
RewriteRule .? - [F,I,L]

[Anton]

Hello,

Sorry, but our products can't do the look-ups you need.

[TomNM Profile]

Understood. IIS is doing the lookups. I assume isapi cannot use that information though given the timing, right?

[Anton]

Yes, that's right.