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System and network requirements

Verify that your system and network meet the minimum requirements before you install a DigiCert​​®​​ ACME automation agent.

The agent must be installed on the same system as the automated TLS/SSL certificates.

System requirements

The ACME agent software runs on Linux and Windows systems, with the following requirements:

CentOS/RHEL (7.x, 8.x, 9.x), Ubuntu (20.04 and later)

  • Root privileges

  • 64-bit version and US locale required

  • 2 GB RAM (4 GB recommended)

  • 2 GB free disk space (minimum)

  • CLI utilities awk, grep, and sed must be installed

Microsoft Windows 10, Server (2016, 2019, 2022)

  • Run as administrator

  • 64-bit version

  • Microsoft .NET Framework 4.x

  • 2 GB RAM (4GB RAM recommended)

  • 2 GB free disk space (minimum)

Network requirements

The local automation agent must be able to:

  • Connect outbound to HTTPS (port 443).

  • Connect outbound to the public IP address 216.168.244.42 (for acme.digicert.com and daas.digicert.com).

  • Resolve the fully qualified domain names (FQDNs) for the local web server, either via DNS or a local "hosts" file.

In addition, if the agent will use a DigiCert​​®​​ sensor as proxy, make sure the default communication port is open on that sensor:

  • Communication port 8080 if the sensor version is 3.8.46 and older.

  • Communication port 48999 if the sensor version is 3.8.47 and newer.

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