I have a Exchange 2007 environment we are about to put into production to replace a Exchange 2003 system. The new system is using two apache 2.2 reverse-proxy servers in our DMZ running CentOs 5.5. The reverse-proxy boxes are behind a Cisco load balancer.
I have had to use a self-signed cert for the testing, we did get a Verisign cert for the production hostname, but we did not want to spend the money w/ Verisign on a temp testing cert.
So my inbound path is: Internet > External Firewall > Cisco load balancer > Apache rev-proxy > Internal Firewall > Exchange 2007 CAS server.
I am doing the OWA testing using a Sprint Broadband card & I am seeing extremely slow access to OWA, it takes about 3 minutes just to get to the logon prompt (this is after a warning about the self-signed cert). After putting in my credentials it takes at least 5 minutes to get my OWA logged in & I can see my Inbox. Other actions are slow after log in.
Where to start the troubleshooting?