Prerequisites - Adaptive Applications - BlueCat Gateway - 20.6.1

Global Server Selector Administration Guide

prodname
BlueCat Gateway
version_custom
20.6.1

Before you begin, ensure that the following prerequisites are met.

Software Prerequisites

  • You must be running Address Manager v9.2.0 or greater.
  • You must have a DNS/DHCP Server configured with a Primary DNS role.
  • You must have a DNS/DHCP Server configured with a DNS Caching role in each region.
  • For the optimal implementation of GSS:
    • The DNS architecture must have sufficient redundancy.
    • The DNS service must be independently highly-available in each region.
  • The host machine that will be running the BlueCat Gateway instance must have Docker installed.

Hardware Prerequisites

  • You must have at least 2 CPUs and 8GB of RAM allocated to the host machine that will be running BlueCat Gateway.
  • You must have at least 50GB of free disk space on the host machine.

Configuration Prerequisites

You must configure the BlueCatGateway UDF and a BlueCat Gateway user on Address Manager. For more information, refer to the 'Configuring BlueCat Gateway' section of the BlueCat Gateway Installation Guide.

Network Connectivity Prerequisites

  • The GSS application must have HTTP access to the Address Manager API.
  • The GSS application must have DNS access to the DNS/DHCP Server with the Primary DNS role.
  • The GSS health check server must have connectivity to the application servers that it monitors.
  • Ports 80 and 443 should be open on the host machine running Docker.

Time Synchronization Prerequisites

The clock on the host machine that will be running BlueCat Gateway must be synchronized with the clock on the Primary DNS server to facilitate mutual authentication. BlueCat recommends configuring NTP.

User Account Permission Prerequisites

  • To download GSS, you must have a Quay account that has been granted access to the GSS Adaptive Application.
  • For installing and setting up GSS, you must have an Address Manager Administration account with both GUI and API access.
  • For installing and setting up GSS, you must have a service Address Manager Administration account with API access for the health check.
  • For performing operations in GSS, the Address Manager users must have access to change the gslb.bluecat DNS zone and the Traffic Steering Tag Group for GSS to configure DNS for applications and services.