Microsoft KB Archive/150543

= Windows NT, Terminal Server, and Microsoft Exchange Services Use TCP/IP Ports =

Article ID: 150543

Article Last Modified on 2/21/2007

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APPLIES TO


 * Microsoft Windows NT Server 4.0, Terminal Server Edition
 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT Load Balancing Service

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This article was previously published under Q150543



SUMMARY
This article discusses the known TCP/IP ports (TCP and/or UDP) that are used by services within Microsoft Windows NT version 4.0 and Microsoft Exchange Server version 5.0. This is not a complete list of TCP/IP port assignments.

For additional TCP/IP port assignment information, see the following articles in the Microsoft Knowledge Base:

174904 Information About TCP/IP Port Assignments

176466 XGEN: TCP Ports and Microsoft Exchange: In-depth Discussion



MORE INFORMATION
List of Ports Used by Windows NT version 4.0 services: Function                   Static ports

Browsing                   UDP:137,138 DHCP Lease                 UDP:67,68 DHCP Manager               TCP:135 Directory Replication      UDP:138 TCP:139 DNS Administration         TCP:135 DNS Resolution             UDP:53 Event Viewer               TCP:139 File Sharing               TCP:139 Logon Sequence             UDP:137,138 TCP:139 NetLogon                   UDP:138 Pass Through Validation    UDP:137,138 TCP:139 Performance Monitor        TCP:139 PPTP                       TCP:1723 IP Protocol:47 (GRE) Printing                   UDP:137,138 TCP:139 Registry Editor            TCP:139 Server Manager             TCP:139 Trusts                     UDP:137,138 TCP:139 User Manager               TCP:139 WinNT Diagnostics          TCP:139 WinNT Secure Channel       UDP:137,138 TCP:139 WINS Replication           TCP:42 WINS Manager               TCP:135 WINS Registration          TCP:137 List of Ports Used by WLBS and Convoy for Cluster Control:

Function                   Static ports

Convoy                     UDP:1717 WLBS                       UDP:2504 List of Ports Used by Microsoft Exchange Server version 5.0: Function                   Static ports

Client/Server Comm. TCP:135 Exchange Administrator     TCP:135 IMAP                       TCP:143 IMAP (SSL)                 TCP:993 LDAP                       TCP:389 LDAP (SSL)                 TCP:636 MTA - X.400 over TCP/IP    TCP:102 POP3                       TCP:110 POP3 (SSL)                 TCP:995 RPC                        TCP:135 SMTP                       TCP:25 NNTP                       TCP:119 NNTP (SSL)                 TCP:563 For additional information, see the following article or articles in the Microsoft Knowledge Base:

176466 XGEN: TCP Ports and Microsoft Exchange: In-depth Discussion

List of Ports Used by Terminal Server Clients Function                   Static ports

RDP Client (Microsoft)     TCP:3389 (Pre Beta2:1503) ActiveX Client (TSAC)      TCP:80, 3389 ICA Client (Citrix)        TCP:1494 NOTE: Terminal Server uses port 3389.

Additional Ports Used by Windows 2000 services: Function                             Static ports Direct Hosting of SMB Over TCP/IP    TCP,UDP: 445

IPSec: ISAKMP                            UDP: 500 ESP                               IP Protocol 50 AH                                IP Protocol 51

Kerberos                             TCP,UDP: 88 RSVP                                 IP Protocol 46

Keywords: kbinfo kbnetwork KB150543

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