What is the default port used by WSUS servers to accept incoming client connections?

Here you can find lists for all default ports used in PRTG:

  • Ports Used by Sensors
  • Ports Used in Other Contexts

Ports Used by Sensors

Cloud HTTP and Cloud Ping sensors

443

Port for the communication via the PRTG Cloud

Cloud Ping sensors

80

Port for the TCP ping

Dell EMC sensors

443

Port for the connection to the Dell EMC system

DICOM sensors

104

Port for the connection to the DICOM interface

DNS v2 sensor

53

Port for the connection to the device that runs the DNS service

Docker Container Status sensor

2376 (Docker over TLS)

Port for the connection to the Docker container

FTP sensor

21

Port for the connection to the file server

HL7 sensor

104

Port for the connection to the HL7 interface

HPE 3PAR sensors

WSAPI port:

  • 8080 (secure)
  • 8008 (unsecure)

SSH port:

  • 22 (secure)

WSAPI and SSH port for the connections to the HPE 3PAR system

HTTP sensors

8080

Port of the proxy

HTTP IoT Push Data Advanced sensor

5051

Port on which the sensor listens for incoming HTTPS requests

This port is fixed. You cannot change it.

HTTP Push sensors

  • 5050 (unsecure)
  • 5051 (secure)

Port on which the sensor listens for incoming HTTP or HTTPS requests

IMAP sensor

  • 143 (unsecure)
  • 993 (secure)

Port for the IMAP connection

LDAP sensor

  • 389 (unsecure)
  • 636 (secure)

Port for the connection to the LDAP server

NetApp sensors

443

Port for the NetApp API access

Microsoft SQL v2 sensor

1433

Port for the connection to the Microsoft SQL database

MySQL v2 sensor

3306

Port for the connection to the MySQL database

Modbus TCP Custom sensor

502

Port for the connection to the Modbus TCP server

MQTT sensors

  • 1883 (unsecure)
  • 8883 (secure)

Port for the MQTT connection

OPC UA sensors

4840

Port for the connection to the OPC UA server

Oracle sensors

1521

Port for the connection to the Oracle SQL database

POP3 sensor

  • 110 (unsecure)
  • 995 (secure)

Port for the POP3 connection

PostgreSQL sensor

5432

Port for the connection to the PostgreSQL database

QoS sensors

50000

Port on which the sensor listens for the UDP packets

RADIUS v2 sensor

1812

Port for the connection to the RADIUS server

RDP (Remote Desktop) sensor

3389

Port for the RDP connection

Redfish sensors

443

Port for the Redfish connection

REST sensors

8080

Port for the proxy

SIP Options Ping sensor

5060

Port for the UDP connection

SMTP sensors

  • 25 (unsecure)
  • 465 or 587 (secure)

Port used to send an email via SMTP

SMTP&IMAP Round Trip sensor

  • 143 (unsecure)
  • 993 (secure)

Port for the IMAP connection

SMTP&POP3 Round Trip sensor

  • 110 (unsecure)
  • 995 (secure)

Port for the POP3 connection

SNMP sensors

161

Port for the SNMP connection

SNMP Trap Receiver sensor

162

Port on which the sensor listens for SNMP traps and on which trap messages are sent

SSH sensors

22

Port for the connection via SSH

SSL sensors

443

Port for the Secure Sockets Layer (SSL)/Transport Layer Security (TLS) connection

Syslog Receiver sensor

514

Port on which the sensor listens for Syslog messages and on which Syslog messages are sent

TFTP sensor

69

Port of the device on which the TFTP service runs

Veeam Backup Job Status sensors

9398

Port for the connection to the Veeam Backup Enterprise Manager

VMware (SOAP) sensors

443

Port for the VMware (SOAP) connection

WBEM sensors

  • 5988 (unsecure)
  • 5989 (secure)

Port for the communication via WBEM

Windows Updates Status (PowerShell) sensor

5985

Port for the connection to Microsoft or to the local WSUS server

WSUS Statistics sensor

8530

Port for the connection to the device on which the WSUS server service runs

Ports Used in Other Contexts

Cluster communication

23570

Port for the communication between cluster nodes

Incoming probe connections

23560

Port on which PRTG listens for incoming remote probe connections

PRTG Cloud

443

Port used by the PRTG Cloud for support tickets, for example

PRTG web server

  • 80 (unsecure)
  • 443 (secure)

Port used by the PRTG web server

Report generation

8085

Port used for report generation

What port does WSUS use by default?

WSUS requires two ports for connections to other WSUS servers and to client computers. One port uses SSL/HTTPS to send update metadata (crucial information about the updates). By default, this is port 8531.

How does WSUS connect to client?

To point the client computer to your WSUS server In Group Policy Object Editor, expand Computer Configuration, expand Administrative Templates, expand Windows Components, and then click Windows Update. In the details pane, double-click Specify intranet Microsoft update service location.

Is WSUS port 8530 TCP or UDP?

Make sure that the computers that you want to be WSUS clients can communicate with the EITS WSUS server on TCP port 8530.

What is used to configure clients to use WSUS?

Group Policy Objects (GPOs) can be used to configure client computers to use the Technology Services WSUS service, and to determine which updates they will receive.