Port |
Agreement |
Application protocols |
System service Name |
N/A |
Gre |
GRE (IP protocol 47) |
Routing and Remote Access |
N/A |
Esp |
IPsec ESP (IP protocol 50) |
Routing and Remote Access |
N/A |
AH |
IPsec AH (IP Protocol 51) |
Routing and Remote Access |
7 |
Tcp |
Echo |
Simple TCP/IP Services |
7 |
Udp |
Echo |
Simple TCP/IP Services |
9 |
Tcp |
Discard |
Simple TCP/IP Services |
9 |
Udp |
Discard |
Simple TCP/IP Services |
13 |
Tcp |
Daytime |
Simple TCP/IP Services |
13 |
Udp |
Daytime |
Simple TCP/IP Services |
17 |
Tcp |
Quotd |
Simple TCP/IP Services |
17 |
Udp |
Quotd |
Simple TCP/IP Services |
19 |
Tcp |
Chargen |
Simple TCP/IP Services |
19 |
Udp |
Chargen |
Simple TCP/IP Services |
20 |
Tcp |
FTP default data |
FTP Publishing Service |
21st |
Tcp |
FTP Control |
FTP Publishing Service |
21st |
Tcp |
FTP Control |
Application Layer Gateway Service |
23 |
Tcp |
Telnet |
Telnet |
25 |
Tcp |
Smtp |
Simple Mail Transfer Protocol |
25 |
Tcp |
Smtp |
Exchange Server |
42 |
Tcp |
WINS replication |
Windows Internet Name Service |
42 |
Udp |
WINS replication |
Windows Internet Name Service |
53 |
Tcp |
Dns |
DNS Server |
53 |
Udp |
Dns |
DNS Server |
53 |
Tcp |
Dns |
Internet Connection Firewall/internet Connection Sharing |
53 |
Udp |
Dns |
Internet Connection Firewall/internet Connection Sharing |
67 |
Udp |
DHCP Server |
DHCP Server |
67 |
Udp |
DHCP Server |
Internet Connection Firewall/internet Connection Sharing |
69 |
Udp |
Tftp |
Ordinary FTP Daemon Service |
80 |
Tcp |
HTTP |
Windows Media Service |
80 |
Tcp |
HTTP |
World Wide Web Publishing services |
80 |
Tcp |
HTTP |
SharePoint Portal Server |
88 |
Tcp |
Kerberos |
Kerberos Key Distribution Center |
88 |
Udp |
Kerberos |
Kerberos Key Distribution Center |
102 |
Tcp |
X.400 |
Microsoft Exchange MTA Stacks |
110 |
Tcp |
POP3 |
Microsoft POP3 Services |
110 |
Tcp |
POP3 |
Exchange Server |
119 |
Tcp |
NNTP |
Network News Transfer Protocol |
123 |
Udp |
Ntp |
Windows time |
123 |
Udp |
SNTP |
Windows time |
135 |
Tcp |
Rpc |
Message Queuing |
135 |
Tcp |
Rpc |
Remote Procedure Call |
135 |
Tcp |
Rpc |
Exchange Server |
135 |
Tcp |
Rpc |
Certificate Services |
135 |
Tcp |
Rpc |
Cluster service |
135 |
Tcp |
Rpc |
Distributed File System |
135 |
Tcp |
Rpc |
Distributed Link Tracking |
135 |
Tcp |
Rpc |
Distributed Transaction Coordinator |
135 |
Tcp |
Rpc |
Distributed File Replication Service |
135 |
Tcp |
Rpc |
Fax Service |
135 |
Tcp |
Rpc |
Microsoft Exchange Server |
135 |
Tcp |
Rpc |
File Replication Service |
135 |
Tcp |
Rpc |
Group Policy |
135 |
Tcp |
Rpc |
Local security agencies |
135 |
Tcp |
Rpc |
Remote Storage Notification |
135 |
Tcp |
Rpc |
Remote Storage Server |
135 |
Tcp |
Rpc |
Systems Management Server 2.0 |
135 |
Tcp |
Rpc |
Terminal Services Licensing |
135 |
Tcp |
Rpc |
Terminal Services Session Directory |
137 |
Udp |
NetBIOS Name resolution |
Computer Browser |
137 |
Udp |
NetBIOS Name resolution |
Server |
137 |
Udp |
NetBIOS Name resolution |
Windows Internet Name Service |
137 |
Udp |
NetBIOS Name resolution |
Network Login |
137 |
Udp |
NetBIOS Name resolution |
Systems Management Server 2.0 |
138 |
Udp |
NetBIOS Datagram Service |
Computer Browser |
138 |
Udp |
NetBIOS Datagram Service |
Messenger Service |
138 |
Udp |
NetBIOS Datagram Service |
Server |
138 |
Udp |
NetBIOS Datagram Service |
Network Login |
138 |
Udp |
NetBIOS Datagram Service |
Distributed File System |
138 |
Udp |
NetBIOS Datagram Service |
Systems Management Server 2.0 |
138 |
Udp |
NetBIOS Datagram Service |
License Logging Service |
139 |
Tcp |
NetBIOS Session Service |
Computer Browser |
139 |
Tcp |
NetBIOS Session Service |
Fax Service |
139 |
Tcp |
NetBIOS Session Service |
Performance Logs and Alerts |
139 |
Tcp |
NetBIOS Session Service |
Background Print Program |
139 |
Tcp |
NetBIOS Session Service |
Server |
139 |
Tcp |
NetBIOS Session Service |
Network Login |
139 |
Tcp |
NetBIOS Session Service |
Remote Procedure Call Locator |
139 |
Tcp |
NetBIOS Session Service |
Distributed File System |
139 |
Tcp |
NetBIOS Session Service |
Systems Management Server 2.0 |
139 |
Tcp |
NetBIOS Session Service |
License Logging Service |
143 |
Tcp |
Imap |
Exchange Server |
161 |
Udp |
Snmp |
SNMP Service |
162 |
Udp |
SNMP Trap Outbound |
SNMP Trap Service |
389 |
Tcp |
LDAP Server |
Local security agencies |
389 |
Udp |
DC Locator |
Local security agencies |
389 |
Tcp |
LDAP Server |
Distributed File System |
389 |
Udp |
DC Locator |
Distributed File System |
389 |
Udp |
DC Locator |
Netlogon |
389 |
Udp |
DC Locator |
Kerberos Key Distribution Center |
443 |
Tcp |
HTTPS |
HTTP SSL |
443 |
Tcp |
HTTPS |
World Wide Web Publishing services |
443 |
Tcp |
HTTPS |
SharePoint Portal Server |
443 |
Tcp |
RPC over HTTPS |
Exchange Server 2003 |
445 |
Tcp |
Smb |
Fax Service |
445 |
Tcp |
Smb |
Background Print Program |
445 |
Tcp |
Smb |
Server |
445 |
Tcp |
Smb |
Remote Procedure Call Locator |
445 |
Tcp |
Smb |
Distributed File System |
445 |
Tcp |
Smb |
License Logging Service |
445 |
Tcp |
Smb |
Network Login |
464 |
Udp |
Kerberos Password V5 |
Kerberos Key Distribution Center |
464 |
Tcp |
Kerberos Password V5 |
Kerberos Key Distribution Center |
500 |
Udp |
IPsec ISAKMP |
Local security agencies |
515 |
Tcp |
LPD |
TCP/IP Print server |
548 |
Tcp |
Macintosh File Server |
Macintosh File Server |
554 |
Tcp |
RTSP |
Windows Media Service |
563 |
Tcp |
NNTP over SSL |
Network News Transfer Protocol |
593 |
Tcp |
RPC over HTTPS Endpoint Mapper |
Remote Procedure Call |
593 |
Tcp |
RPC over HTTPS |
Exchange Server |
636 |
Tcp |
LDAP SSL |
Local security agencies |
636 |
Udp |
LDAP SSL |
Local security agencies |
993 |
Tcp |
IMAP over SSL |
Exchange Server |
995 |
Tcp |
POP3 over SSL |
Exchange Server |
1067 |
Tcp |
To install the bootstrapper service |
Installing the Bootstrapper Protocol server |
1068 |
Tcp |
To install the bootstrapper service |
Installing the Bootstrapper Protocol Client |
1270 |
Tcp |
MOM encryption |
Microsoft Operations Manager 2000 |
1433 |
Tcp |
SQL over TCP |
Microsoft SQL Server |
1433 |
Tcp |
SQL over TCP |
Mssql$uddi |
1434 |
Udp |
SQL Probe |
Microsoft SQL Server |
1434 |
Udp |
SQL Probe |
Mssql$uddi |
1645 |
Udp |
Legacy RADIUS |
Internet Authentication Services |
1646 |
Udp |
Legacy RADIUS |
Internet Authentication Services |
1701 |
Udp |
L2tp |
Routing and Remote Access |
1723 |
Tcp |
PPTP |
Routing and Remote Access |
1755 |
Tcp |
MMS |
Windows Media Service |
1755 |
Udp |
MMS |
Windows Media Service |
1801 |
Tcp |
Msmq |
Message Queuing |
1801 |
Udp |
Msmq |
Message Queuing |
1812 |
Udp |
RADIUS Authentication |
Internet Authentication Services |
1813 |
Udp |
RADIUS Accounting |
Internet Authentication Services |
1900 |
Udp |
SSDP |
SSDP Discovery Service |
2101 |
Tcp |
Msmq-dcs |
Message Queuing |
2103 |
Tcp |
Msmq-rpc |
Message Queuing |
2105 |
Tcp |
Msmq-rpc |
Message Queuing |
2107 |
Tcp |
Msmq-mgmt |
Message Queuing |
2393 |
Tcp |
OLAP Services 7.0 |
SQL Server: Downlevel OLAP Client Support |
2394 |
Tcp |
OLAP Services 7.0 |
SQL Server: Downlevel OLAP Client Support |
2460 |
Udp |
MS Theater |
Windows Media Service |
2535 |
Udp |
MADCAP |
DHCP Server |
2701 |
Tcp |
SMS Remote Control (control) |
SMS Remote Control Agent |
2701 |
Udp |
SMS Remote Control (control) |
SMS Remote Control Agent |
2702 |
Tcp |
SMS remote Control (data) |
SMS Remote Control Agent |
2702 |
Udp |
SMS remote Control (data) |
SMS Remote Control Agent |
2703 |
Tcp |
SMS Remote Chat |
SMS Remote Control Agent |
2703 |
UPD |
SMS Remote Chat |
SMS Remote Control Agent |
2704 |
Tcp |
SMS Remote File transfer |
SMS Remote Control Agent |
2704 |
Udp |
SMS Remote File transfer |
SMS Remote Control Agent |
2725 |
Tcp |
SQL Analytics Services |
SQL Analysis Server |
2869 |
Tcp |
UPNP |
Universal Plug and Play device host |
2869 |
Tcp |
SSDP Event Notification |
SSDP Discovery Service |
3268 |
Tcp |
Global catalog servers |
Local security agencies |
3269 |
Tcp |
Global catalog servers |
Local security agencies |
3343 |
Udp |
Cluster service |
Cluster service |
3389 |
Tcp |
Terminal Services |
NetMeeting Remote Desktop Sharing |
3389 |
Tcp |
Terminal Services |
Terminal Services |
3527 |
Udp |
Msmq-ping |
Message Queuing |
4011 |
Udp |
BINL |
Remote Installation |
4500 |
Udp |
Nat-t |
Local security agencies |
5000 |
Tcp |
SSDP Old Event Notification |
SSDP Discovery Service |
5004 |
Udp |
Rtp |
Windows Media Service |
5005 |
Udp |
RTCP |
Windows Media Service |
5722 |
Tcp |
Rpc |
Distributed File System replication |
6001 |
Tcp |
Information Store |
Exchange Server 2003 |
6002 |
Tcp |
Directory references |
Exchange Server 2003 |
6004 |
Tcp |
Dsproxy/nspi |
Exchange Server 2003 |
42424 |
Tcp |
asp.net session state |
asp.net State Service |
51515 |
Tcp |
MOM plaintext |
Microsoft Operations Manager 2000 |
1024-65535 |
Tcp |
Rpc |
Randomly assigned high TCP ports |