SBS2003 – Required Ports
This information comes from the Microsoft “Securing your SBS2003 Network” document, which can be found at: http://download.microsoft.com/download/1/f/1/1f15a874-f696-4992-b5ad-b1e7b258de1c/SecuringSBSnetwork.doc Services and TCP Port Numbers Service TCP Port Number Inbound Access Recommendations E-mail 25 Allow if you are using Exchange to receive Internet e-mail. Web server 80 (required for HTTP requests for your site) and 443 (required for HTTPS requests using Secure Sockets Layer (SSL), which secures communications from your server and a Web browser) Allow if users on the Internet need to access specific Web-site services on your server. Web-site services that use port 80 and/or port 443 include the following: -Microsoft® … Continue reading SBS2003 – Required Ports