Telecom and Logistics Associates, Geneva Switzerland http://www.tla.ch
Network and Security company

This file is now replaced by Http://www.tla.ch/TLADBTEC


Open Service Ports for Windows 2000 WindowsNT, Terminal Server, & Exchange
Server, Citrix ICA

Functionality                 UDP        TCP        IP
Browsing                      137,138
DHCP Lease                    67,68
DHCP Manager                            135
DNS Administration                      139
DNS Resolution                53
Exchange Administrator                  135
Exchange Client/Server Comm.            135
File Sharing                            139
Citrix ICA  *                  1604     1494 
IMAP                                    143
LDAP                                    389
LDAP (SSL)                              636
Logon Sequence                137,138   139
MTA - X.400 over TCP/IP                 102
NetLogon                      138
NT Diagnostics                          139
NT Directory Replication      138       139
NT Event Viewer                         139
NT Performance Monitor                  139
NT Registry Editor                      139
NT Secure Channel             137,138   139
NT Server Manager                       139
NT Trusts                     137,138   139
NT User Manager                         139
Pass Through Validation       137,138   139
POP3                                    110
PPTP                                    1723      47
Printing                      137,138   139
RPC                           135       135
SMTP                                    25
WINS Manager                            135
WINS Registration                       137
WINS Replication                        42




* ICA from Citrix uses also dynamic ports between 5000 and 65534