Let me see if I can explain this coherently:
We currently have Exchange 2003 and use Apache that sets in our dmz as a proxy for our OWA. We are now in the process of upgrading Exchange 03 to Exchange 2010 and plan a coexsistance. For a time, there will be some users on 03 and some on 2010 using OWA. I will be adding another ip address with and external dns record legacy.ourdomain.com to point to the 2003 exchange and change the webmail.ourdomain.com dns record to point to the new 2010 exchange server. There is also a cName in our internal dns records that points to the 03 exchange server (alias webmail fqdn mail.ourdomain.com), so I am assuming I will need to change that dns record to point to the new 2010 exchange then create another cName for the 03 exchange with legacy.ourdomain.com
Now can anyone tell me what configuration changes I would need to make on our Apache server to allow for both webmails.
According to our ex admin: the server in the dmz is a windows 2003 and running apache and dns forwarders. Basically external requests go to our dns servers they pass the traffic to the apache/dns server. It then forwards the traffic to internal IPs
there are 3 conf files that I have found with info pertaining to the webmail. an httpd-conf, a httpd-ssl.conf, and a httpd-vhosts.conf. I can post some of the info from the files if I need to, to help me solve this. I have no experience with apache so any help or direction to any other helpful site would be appreciated.