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Good links and ideas here<br />
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<a href="https://www.experts-exchange.com/questions/20642389/Exchange-2000-Front-End-Server-Location-LAN-or-DMZ.html" rel="ugc">https://www.experts-exchange.com/questions/20642389/Exchange-2000-Front-End-Server-Location-LAN-or-DMZ.html</a>
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Good links and ideas here

https://www.experts-exchange.com/questions/20642389/Exchange-2000-Front-End-Server-Location-LAN-or-DMZ.html [https://www.experts-exchange.com/questions/20642389/Exchange-2000-Front-End-Server-Location-LAN-or-DMZ.html]

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I have 2 firewalls between the front-end and back end exchange servers. &nbsp;The outside server is behind a PIX 501 which is the DMZ firewall, the internal network is behind a PIX 506 firewall. &nbsp;What ports need to be opened to allow the front-end server to connect back to the DC, GC and back-end exchange server?<br />
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Thanks
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I have 2 firewalls between the front-end and back end exchange servers.  The outside server is behind a PIX 501 which is the DMZ firewall, the internal network is behind a PIX 506 firewall.  What ports need to be opened to allow the front-end server to connect back to the DC, GC and back-end exchange server?

Thanks

Exchange 2003 Front End Port Requirements

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.