System and network requirements

Verify your system and network requirements before you install a DigiCert® sensor.

System requirements

The sensor software runs on systems with the following requirements:

Minimum supported sensor version is 3.8.31
- 64-bit
- x86 processor (x86-64)
- 4 GB RAM
- 2 GB free disk space (minimum)
Other Docker container and network interface requirements include:
- Docker sensor containers use a bridge network by default. This associates the Docker network with a bridge interface on the host, along with firewall rules to filter traffic between these interfaces.
- Docker containers that share the same Docker network and host bridge interface but are isolated from each other by a firewall can communicate with each other on the bridge network.
- To view a list of Docker interfaces, run the docker network ls command.
- To get information about Docker interfaces, run the docker inspect <docker_container_ID> | grep sensor command.

Minimum supported sensor version is 3.8.31
- 64-bit
- x86 processor (x86-64)
- 4 GB RAM
- 2 GB free disk space (minimum)

The sensor must be able to:

Connect outbound to HTTPS (port 443).
Resolve the fully qualified domain names (FQDNs) for its host system, either via DNS or a local "hosts" file.

Access the two DigiCert platform URLs for one of the following regions:

Region	URLs
Americas (U.S.A.)	`one.digicert.com`, `clientauth.one.digicert.com`
APJ (Japan)	`one.digicert.co.jp`, `clientauth.one.digicert.co.jp`
EMEA (Netherlands)	`one.nl.digicert.com`, `clientauth.one.nl.digicert.com`
EMEA (Switzerland)	`one.ch.digicert.com`, `clientauth.one.ch.digicert.com`

To use the sensor for certificate lifecycle automation and/or certificate cipher discovery, it must also be able to reach the external DigiCert host discovery-service.digicert.com.
Access any external systems that it will integrate with via connectors, or any systems on your network that it will target for certificate lifecycle automation or in network scans.

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