Firewall Permissions

Applies to Product: USM Appliance™ LevelBlue OSSIM®

USM Appliance components must use particular URLs, protocols, and ports to function correctly.

Note: If deploying USM Appliance All-in-One, you only need to open the ports associated with the monitored assets, because All-in-One includes both USM Appliance Server and USM Appliance Sensor, therefore the communication between them becomes internal.

If your company operates in a highly secure environment, you must change some permissions on your firewall(s) for USM Appliance to gain access.

External URLs and port numbers used by USM Appliance features

Server URL

Port Number

LevelBlue Features in Use

Applicable Release

data.alienvault.com

80

USM Appliance product and feed update

All

maps-api-ssl.google.com

maps.googleapis.com

443

Asset An IP-addressable host, including but not limited to network devices, virtual servers, and physical servers. Location

All

maps.google.com

maps.gstatic.com

80

Asset Location

All

messages.alienvault.com

443

Message Center Inbox in the USM Appliance web UI which lists messages publicizing availability of various LevelBlue product updates plus other messages such as system errors and warnings.

All

otx.alienvault.com1

443

Open Threat Exchange®

5.1+

reputation.alienvault.com

443

USM Appliance IP Reputation

All

tractorbeam.alienvault.com

22, 443

Remote Support Secure, encrypted connection to the LevelBlue Support Server through the USM Appliance web UI or the console, allowing LevelBlue Support staff to access, diagnose, and resolve any problems occurring in a USM Appliance instance.

All

www.google.com2

80

USM Appliance API

All

cybersecurity.att.com/product/help/ping.php3

443 Detects if the USM Appliance component is online All

The following diagram shows the port numbers used by the USM Appliance components to communicate with each other and with the monitored assets. The direction of the arrows indicate the direction of the network traffic.

Port numbers used between components.

Port numbers used between USM Appliance components

Important: Ports labeled with * are optional.

About the Use of VPN

Port 33800 shown in the diagram is a default and only used when VPN is enabled. You may use a different port for VPN, if desired.

Note: When enabling the VPN, you do not need to open the other ports between the USM Appliance Sensor and the USM Appliance Server, because all communication goes through the VPN tunnel.

If you enable VPN, in addition to having port 33800/TCP open for the VPN tunnel, you also need to allow TLS transport for that port in case you use a firewall/security device that can perform inspection or interception of TLS traffic.