Hi All, We're migrating an old Microsoft ISA Server system to OpenBSD pf. First off, before I ask any questions, kudos to everyone -- Installing OpenBSD 3.8 was a very pleasant, painless experience for someone who's never used it before. Setting up pf/nat was also extraordinarily easy. The docs are great.
That aside, the only thing that I haven't been able to migrate yet is ISA's ability to redirect web requests coming in on the same IP to different machines based on the host name. IE- www.a.com (IP 123.123.0.1) gets redirected to the internal IP 192.168.0.1 while www.b.com (also IP 123.123.0.1) gets redirected to the internal IP 192.168.0.2. I haven't found anything in the docs, and all the list archive questions I've found were specific to ipnat, not pf. I'm thinking that I can't do it. In that case, my options seem to be 1) use different external IP's for each website, and redirect to different internal servers based on IP 2) redirect all web traffic to the legacy ISA system, which will then redirect based on hostname. I'm hesitant to use up all our IPs for option 1, but I'm thinking option 2 is even worse... Are there any options I haven't thought of? Thanks for any advice... Peter L.
