USM Anywhere™

Requirements for GCP Sensor Deployment

USM Anywhere deploys the Google Cloud Platform (GCP) Sensor through the Google Virtual Private Cloud (VPC) and requires at a minimum the specifications below:

Requirement	Description
n1-standard-2 instance	A standard instance with 2 vCPUs and 7.5 GB of memory.
Zonal SSD persistent disk 50GB	Persistent disk storage offers reliable network storage that your instances can access like physical disks. A 50GB volume is designated as the default size for optimal performance.
Internet connection to the USM Anywhere secure cloud	Review the Sensor Ports and Connectivity for more information.

Requirement

Description

n1-standard-2 instance

A standard instance with 2 vCPUs and 7.5 GB of memory.

Zonal SSD persistent disk 50GB

Persistent disk storage offers reliable network storage that your instances can access like physical disks.

A 50GB volume is designated as the default size for optimal performance.

Internet connection to the USM Anywhere secure cloud

Review the Sensor Ports and Connectivity for more information.

Note: USM Anywhere does not support deploying a GCP Sensor on a shared VPC network.

Important: Because the needs of a sensor differ based on the varying demands of different deployment environments and the complexity of events being processed, the number of events per second (EPS) throughput a sensor can process will vary.

Depending on your environment, you may need to deploy additional sensors to ensure that all events are processed.

Application Service Dependencies

With the Deployment Manager Template provided by AT&T Cybersecurity, you can automatically deploy a USM Anywhere Sensor as a service into your environment. Review the following lists for information about the inbound and outbound IP addresses, ports, and services used by USM Anywhere.

Sensor Ports and Connectivity

For USM Anywhere Sensor deployment in the Google Cloud Platform (GCP), the Cloud Deployment Manager template automatically creates the firewall rules needed for network connectivity between the instances within the virtual private cloud (VPC).

Note: The required firewall rules are outlined below.

The following table includes the outbound ports.

Sensor Ports and Connectivity (Outbound Ports)
Type	Ports	Endpoints	Purpose
TCP	443	update.alienvault.cloud	Communication with AT&T Cybersecurity for initial setup and future updates of the sensor.
TCP	443	reputation.alienvault.com	Ongoing communication with Open Threat Exchange® (OTX™).
TCP	443	otx.alienvault.com	Ongoing communication with OTX to retrieve vulnerability scores. Connecting to otx.alienvault.com is not required but highly recommended.
TCP	443	your USM Anywhere subdomain .alienvault.cloud	Ongoing communication with USM Anywhere.
SSL / TCP	7100	your USM Anywhere subdomain .alienvault.cloud	Ongoing communication with USM Anywhere.
UDP	53	DNS Servers (Google Default)	Ongoing communication with USM Anywhere.
UDP	123	time1.google.com time2.google.com time3.google.com time4.google.com	Sync with network time protocol (NTP) services in the AT&T Cybersecurity Secure Cloud.
TCP	22 and 443	prod-usm-saas-tractorbeam.alienvault.cloud	SSHProgram to securely log into another computer over a network, to execute commands in a remote machine, and to move files from one machine to another through Secure Copy (SCP). communications with the USM Anywhere remote support server. See Troubleshooting and Remote Sensor Support for more information about remote technical support through the USM Anywhere Sensor console.

The following table includes the inbound ports.

Sensor Ports and Connectivity (Inbound Ports)
Type	Ports	Purpose
SSH	22	Inbound method for secure remote login from a computer to USM Anywhere.
HTTP	80	Inbound communication for HTTP traffic.
UDP (RFC 3164)	514	USM Anywhere collects data through syslog over UDP on port 514 by default.
TCP (RFC 3164)	601	Inbound communication for reliable syslog service. USM Anywhere collects data through syslog over TCP on port 601 by default.
TCP (RFC 5424)	602	USM Anywhere collects data through syslog over TCP on port 602 by default.
Traffic Mirroring	4789	Inbound communication for virtual extensible local area network (VXLAN).
TLS/TCP (RFC 3164)	6514	USM Anywhere collects Transport Layer Security (TLS)-encrypted data through syslog over TCP on port 6514 by default.
TLS (RFC 5424)	6515	USM Anywhere collects data through syslog over TLS on port 6515 by default.
GrayLog	12201	Inbound communication for Graylog Extended Log Format (GELF).

Google Cloud Services

The USM Anywhere Sensor uses the following GCP services:

Stackdriver
Google Compute Engine
Google Cloud Pub/Sub

Installation Prerequisites

Before you install the Google Cloud Platform (GCP) Sensor, make sure you have the following prerequisites available:

Prerequisites	Description
Cloud Deployment Manager template provided by AT&T Cybersecurity	The Deployment Manager template automatically creates all required GCP resources for deployment, including an instance, volume, and firewall rules for use by the USM Anywhere Sensor instance.
Privileged user account on GCP	To deploy the Deployment Manager template, you must have a privileged user account in GCP with Compute Engine permissions, permission to create and edit service accounts, as well as write permission to the Deployment Manager.