Exchange OWA through firewall.

[mufka]

I have a firewall with 3 interfaces, WAN, DMZ and LAN. Currently I have a OWA server in the DMZ talking to the Exchange server on the LAN. Everything is open between the DMZ and the LAN. I want to tighten up the security between the DMZ and the LAN. What traffic absolutely needs to pass? I know the domain traffic needs to pass, and the stuff for Exchange. What ports are these and how should it be done?

Thanks

 

[comtutor]

Http is 80 and LDAP is typically 389

Draq
comtutor@uswestmail.net
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