Tanium network ports

The following table summarizes the Tanium processes and default values for ports used in Tanium Core Platform communication.

Network communication ports used by Tanium components

Source	Destination	Port	Protocol	Purpose
Tanium Clients	Tanium Server	17472	TCP	Client communication with the Tanium Server
Tanium Server	Tanium Server	17472, 443, 8443	TCP	Tanium Server cluster communication
Tanium Module Server	Tanium Server	443, 8443	TCP	Tanium Module Server communication to the Tanium Server
Console users	Tanium Server	443, 8443	TCP	Tanium Console communication with the Tanium Server
Tanium Server	Tanium Module Server	17477	TCP	Tanium Module Server communication from Tanium Server
Tanium Zone Server Hub	Tanium Zone Server	17472	TCP	Tanium Zone Server Hub communication with the Tanium Zone Servers
Tanium Server, Module Server	External servers	443, 80	TCP	Tanium Server or Module Server communication with external servers such as content.tanium.com

In addition, the installation and management of the appliance requires communication over common network service ports. The following table shows the default ports for these services.

Appliance network service ports

Source	Destination	Port	Protocol	Purpose
Tanium Servers Tanium Module Servers	DNS servers	53	UDP, TCP	DNS resolution for Tanium Servers and Tanium Module Servers
Tanium Servers	Tanium Servers	Not applicable	IPsec ESP	Protocol for data confidentiality and authentication in Tanium Server cluster communications
Tanium Module Servers	Tanium Module Servers	Not applicable	IPsec ESP	Protocol for data confidentiality and authentication during Tanium Module Server synchronization
Tanium Servers	Tanium Servers	500, 4500	UDP	IPsec IKE for setting up a secure channel in Tanium Server cluster communications
Tanium Module Servers	Tanium Module Servers	500, 4500	UDP	IPsec IKE for setting up a secure channel during Tanium Module Server synchronization
Tanium Servers	LDAP servers	389, 636	TCP	(Optional) External LDAP communications for Tanium authentication
All Tanium Appliances	NTP servers	123	UDP	NTP time synchronization
Tanium Servers	All Tanium Appliances	22	TCP	SSH, SCP, SFTP communication for appliance array management
Tanium administrator workstations	All Tanium Appliances	22	TCP	SSH, SCP, SFTP communication for appliance management
SNMP servers	Tanium Appliances	161	UDP	(Optional) SNMP monitoring
Tanium Appliances	Syslog servers	514	TCP, UDP	(Optional) Syslog monitoring
Tanium administrator workstations	Tanium Appliances	443, 5900	TCP	(Physical appliances only) iDRAC communications1
Tanium Console user workstations/browsers	content.tanium.com update.microsoft.com *.digicert.com	80, 443	TCP	Download and install solutions to the Tanium Core Platform
Tanium Appliances	download.tanium.com	443	TCP	(Optional) Download and install Tanium Server upgrades.
1 These ports need to be open only for the IP address of the dedicated iDRAC port (if applicable). The iDRAC port has an IP address that is different from the TanOS network interfaces. See the Tanium Appliance Deployment Guide: Configure the iDRAC interface.

The following figure illustrates how the Tanium Core Platform uses ports in an active-active deployment with Appliance infrastructure.

For more information about the port requirements of specific Tanium modules and shared services, see Solution-specific port requirements.

The following table summarizes the Tanium processes and default values for ports used in Tanium Core Platform communication:

Network communication ports used by Tanium components

Source	Destination	Port	Protocol	Purpose
Tanium Server, Module Server	External servers	443, 80	TCP	Tanium Server (TaniumReceiver.exe) or Module Server (TaniumModuleServer.exe) communication with external servers such as content.tanium.com
Tanium Server	Tanium Server	443, 17472	TCP	Communication between active-active Tanium Servers
Tanium Server	Module Server	17477	TCP	Tanium Server communication with the Module Server
Module Server	Tanium Server	443	TCP	Tanium Module Server communication with the Tanium Server
Tanium Server	Tanium database	1433, 5432	TCP	Tanium Server communication with the Tanium database: SQL server (Sqlservr.exe) or PostgreSQL server (postgres.exe)
Zone Server Hub	Zone Server*	17472	TCP	Zone Server Hub (TaniumZoneServer.exe) communication with the Zone Server (TaniumZoneServer.exe)
Tanium Clients	Tanium Clients, Tanium Server, Zone Server*	17472	TCP	Communication between Tanium Clients (TaniumClient.exe), Communication between the clients and the Tanium Server or Zone Server
Console/API users	Tanium Server	443	TCP	Tanium Console/API user workstation (browser) communication with the Tanium Server
Console/API users	External servers	443, 80	TCP	Tanium Console/API user workstation (browser) communication with external servers such as content.tanium.com
To improve the security of the Zone Server, configure separate ports for traffic from Zone Server Hubs and Tanium Clients. For the steps, see Tanium Core Platform Deployment Guide for Windows: Configure ports for traffic from Zone Server Hubs and Tanium Clients.

The following figure illustrates how the Tanium Core Platform uses ports in an active-active deployment with Windows infrastructure:

You can use the Tanium™ Client Management module to deploy any version of the Tanium Client. For the ports that Client Management requires for communication, see Tanium Client Management User Guide: Network connectivity, ports, and firewalls.

The following sections list details about ports that Tanium Core Platform components use, and indicate the default ports.

To change the default ports for platform servers, see Tanium Core Platform settings. To change the default ports for Tanium Clients, see Tanium Client Management User Guide: Network connectivity, ports, and firewalls.

Tanium Server

The Tanium Server acts as the central hub of communication in the Tanium environment. The server receives traffic that Tanium Clients and the Tanium Console initiate. The server initiates connections to the Tanium database server as well as any Zone Servers.

Inbound (Tanium Client to Tanium Server)

Rule summary

Allow traffic to TCP port 17472 on the Tanium Server from any endpoint to be managed on the internal network.

Details

The communication flow between Tanium Clients and the Tanium Server is counter-intuitive. For example, when you ask a question through the Tanium Console, instead of the server initiating connections to clients, it is leader clients in each linear chain that initiate connections to the Tanium Server. See Tanium Client Management User Guide: Client peering.

All Tanium Clients initiate connections to the Tanium Server when they register. During registration, each Client reports information about itself to the server and receives configuration updates, such as changes to peer lists, from the server.

Inbound (Tanium Console)

Rule summary

Allow traffic from trusted hosts to TCP port 443 on the Tanium Server. An example of a trusted host is a system on a management subnet address that is used for Tanium Console access.

Details

For security, TCP and SOAP communication to the Tanium Server is TLS-encrypted, so the Tanium Server installer configures the server to listen for TCP and SOAP requests on port 443. If another installed application is listening on port 443, you can designate a different port.

Outbound (Tanium Server to Database Server)

Rule summary

Allow traffic from the Tanium Server on TCP port 1433 or 5432 to the Tanium database server.

Details

The Tanium Server initiates connections to the Tanium database server on port 1433 (SQL Server) or 5432 (PostgreSQL).

Outbound (Tanium Server to Module Server)

Rule summary

Allow traffic from the Tanium Server to TCP port 17477 on the Module Server.

Details

The Tanium Server initiates connections to the Module Server on port 17477.

Outbound (Tanium Server to Internet)

Rule summary

Allow traffic from the Tanium Server to TCP destination ports 80 and 443 on the Internet.

Using port 443 is a security best practice because traffic on that port is encrypted through Hypertext Transfer Protocol Secure (HTTPS) protocol.

Details

The Tanium Server initiates connections to https://content.tanium.com and http://*.digicert.com when importing updates to Tanium Core Platform components and solutions. The server might also initiate connections to other Internet sites such as https://update.microsoft.com for other operations. For details, see Internet URLs required.

Inbound/Outbound (active-active deployment)

Rule summary

Allow traffic between Tanium Servers in an active-active cluster on TCP port 17472.

Details

Any active-active cluster member might initiate a connection to the other member. Package files that are uploaded to one member are synchronized to the other. In addition, each member passes Tanium messages, such as question answers, to the other cluster member.

Tanium Module Server

Inbound (Tanium Server to Module Server)

Rule summary

Allow traffic from the Tanium Server to TCP port 17477 on  the Module Server.

Details

Check the documentation for the particular Tanium solutions that you plan to use to see whether they require additional inbound ports. See Solution-specific port requirements.

Outbound (Module Server to Internet)

Rule summary

Allow traffic from the Module Server to destination TCP ports 80 and 443 on the Internet.

Using port 443 is a security best practice because traffic on that port is encrypted through the HTTPS protocol.

Details

The Module Server does not initiate connections. However, when a solution is imported, the Module Server might need to connect to Tanium and other Internet locations to download required content, and the installed solution services might initiate connections. Check the documentation for the particular solutions that you plan to use to see if they require additional outbound ports. See Solution-specific port requirements.

Outbound (solutions services to Tanium Server)

Rule summary

Allow traffic from the Module Server to the following destination TCP ports on the Tanium Server:

• 443: Windows and Appliance deployments

• 8443: Appliance deployments only

Details

The Module Server does not initiate connections. However, a solution on the Module Server might initiate a connection to the Tanium Server.

Tanium Zone Server Hub

Outbound (Tanium Zone Server Hub to Zone Server)

Rule summary

Allow traffic from the Zone Server Hub to the destination TCP port 17472 on DMZ machines that host the Zone Servers. In an Appliance deployment, the hub is always installed on the Tanium Server appliance. In a Windows deployment, the hub is usually installed on the Tanium Server host but can also be installed on a dedicated host.

Details

If you are using the Zone Server to proxy traffic from managed endpoints on less trusted network segments to the Tanium Server on the core network, then the Zone Server Hub must be able to connect to the Zone Servers in the DMZ. In Tanium Core Platform 7.3 or earlier, the ZoneServerList.txt configuration file in the hub installation folder identifies the addresses of the destination Zone Servers. In later releases, the hub-to-Zone Server mappings determine the destination Zone Servers: see Tanium Console User Guide: Managing Zone Servers and hubs.

Tanium Zone Server

Inbound (Tanium Client to Zone Server)

Rule summary

Allow traffic from any computer on the Internet to TCP port 17472 on the Zone Servers in the DMZ.

Details

Tanium Clients initiate connections to a Zone Server as if it were a Tanium Server.

Inbound (Tanium Zone Server Hub to Zone Server)

Rule summary

Allow traffic from the Zone Server Hub to TCP port 17472 on the Zone Servers in the DMZ. In an Appliance deployment, the hub is always installed on the Tanium Server appliance. In a Windows deployment, the hub is usually installed on the Tanium Server host but can also be installed on a dedicated host.

Details

If you are using the Tanium Zone Server to proxy traffic from managed endpoints on less trusted network segments to the Tanium Server on the core network, then the Tanium Zone Server Hub must be able to connect to the Zone Servers in the DMZ.

Tanium Client

Inbound/Outbound (Tanium Client to Client)

Rule summary

Allow traffic between Tanium Client peers on the TCP listening port 17472.

Details

In addition to the client-to-server TCP communication that occurs on port 17472, Tanium Clients also communicate with their peers on port 17472. The default client peering settings ensure that clients form linear chains only within the boundaries of local area networks (LANs). Therefore, you must allow bi-directional TCP communication on the listening port between clients that are in the same LAN, but not necessarily between all clients across your enterprise wide area network (WAN). For details on client peering settings, see Tanium Client Management User Guide: Configuring Tanium Client peering.

Outbound (Tanium Client to Zone Server)

Rule summary

Allow traffic from any endpoint on the Internet to TCP port 17472 on the Zone Servers in the DMZ.

Details

In deployments with a Zone Server, a Tanium Client might connect to a Zone Server instead of a Tanium Server. The communication requirements for these clients are identical to the Tanium Server-to-Tanium Client requirements.