Useful resources for firewalling Microsoft Windows networks


This KB article presents a number of links to information on how to get various microsoft protocols through a firewall. We would like to note that, as usual, the fact that it is possible to do something through a firewall,
does not necessarily mean that it is a good idea to do so.

As always, the effects of permitting any traffic through a firewall should be fully understood, and, if
possible, its risks mitigated - through network segmentation or other means.

  • Using Distributed COM with Firewalls
  • Active Directory Replication over Firewalls
  • HOWTO: Configure RPC Dynamic Port Allocation to Work with Firewall [followup]
  • Restricting Active Directory Replication Traffic to a Specific Port
  • Description of the Microsoft Computer Browser Service
  • The use of TCP port 445 in Windows 2000
  • Attempting WINS Replication across Router
  • Firewall-1 and Windows Networking
  • Windows NT, Terminal Server, and Microsoft Exchange Services Use TCP/IP Ports
  • How to Configure a Firewall for Domains and Trusts
  • TCP Ports and Microsoft Exchange: In-depth Discussion
  • Configuring MTA TCP/IP Port # for X.400 and RPC Listens
  • How to Change Terminal Server's Listening Port
  • Exchange 2000 Windows 2000 Connectivity Through Firewalls
  • Setting TCP/IP Ports for Exchange and Outlook Client Connections Through a Firewall
  • How to Force Kerberos to Use TCP Instead of UDP
  • DCOM Port Range Configuration Problems
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