What network ports need to be open for Windows Small Business Server 2003?
For full functionality of SBS 2003 (SBS2003) Remote Web Workplace, forward the following ports at your router or firewall: SMTP 25 – Simple Mail Transfer Protocol HTTP 80 – Home Page Web SSL 443 – Home Page Web Secured RWW 444 – Second SSL Secured on alternate port PPTP 1723 – VPN Connections RDP 3389 – Remote Desktop Protocol RWW2 4125 – Remote Web Workplace Optional: POP3 110 – If using POP3 mail connections.
