hpntbast101_11
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Appendix B - List of Ports Used by Windows NT version 4.0
Function
Static ports
Windows NT
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 TCP139
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
Convoy Clustering (WLBS)
Convoy
UDP:1717
WLBS
UDP:2504
Exchange
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
Terminal Server
RDP Client (Microsoft)
TCP:3389 (Pre Beta2:1503)
ICA Client (Citrix)
TCP:1494
DCOM RPC high ports
By default DCOM dynamically allocates one high port (>1023) per process. There is a way to limit the port
mapper to only a specific range of ports. You must decide how many ports you want to allocate, which is
equivalent to the number of simultaneous DCOM processes through the firewall. You must open all of the UDP
and TCP ports corresponding to the port numbers you choose. In addition, you must open TCP/UDP 135, which