Ports required for communicating through a firewall

Prev Next

Use these ports to configure a firewall to allow traffic to and from your ePO - On-prem server.

Relevant terms

  • Bidirectional — The remote or local system can initiate the connection.

  • Inbound — The remote system initiates the connection.

  • Outbound — The local system initiates the connection.

ePO - On-prem server

Port

Default

Description

Traffic direction

Agent-server communication port

80

TCP port opened by the ePO - On-prem server service to receive requests from agents.

Bidirectional between the Agent Handler and the ePO - On-prem server and inbound from Trellix Agent to Agent Handlers and ePO - On-prem server.

Agent communicating over SSL

443

By default, agents must communicate over SSL (443 by default). This port is also used for the Remote Agent Handler to communicate with the ePO - On-prem main Repository.

Outbound connection from ePO - On-prem server to Trellix Source Site for secure content updates.

Inbound connection:

  • Agent to ePO - On-prem

  • Agent to Agent Handler

Outbound connection:

  • Agent Handler to main Repository

  • ePO - On-prem to main Repository

Agent wake-up communication port SuperAgent repository port

8081

TCP port opened by agents to receive agent wake-up requests from the ePO - On-prem server. TCP port opened to replicate repository content to a SuperAgent repository.

Outbound connection from the ePO - On-prem server and Agent Handler to the Trellix Agent.

Agent broadcast communication port

8082

UDP port opened by SuperAgent to forward messages from the ePO - On-prem server and Agent Handler.

Outbound connection from the SuperAgent to other agents.

Console-to-application server communication port

8443

HTTPS port opened by the ePO - On-prem Application Server service to allow web browser console access.

Inbound connection to the ePO - On-prem server from the ePO - On-prem console.

Client-to-server authenticated communication port

8444

Used by the Agent Handler to communicate with the ePO - On-prem server to get required information (for example, LDAP servers).

Outbound connection from remote Agent Handlers to the ePO - On-prem server.

SQL Server TCP port

1433

TCP port used to communicate with the SQL Server. This port is specified or determined automatically during the setup process.

Outbound connection from the ePO - On-prem server and Agent Handler to the SQL Server.

SQL Server UDP port

1434

UDP port used to request the TCP port that the SQL instance hosting the ePO - On-prem database is using.

Outbound connection from the ePO - On-prem server and Agent Handler to the SQL Server.

Default LDAP server port

389

LDAP connection to look up computers, users, groups, and Organizational Units for User-Based Policies.

Default SSL LDAP server port

636

User-Based Policies use the LDAP connection to look up users, groups, and Organizational Units.

Outbound connection from the ePO - On-prem server and Agent Handler to an LDAP server.