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Cleanup Redis cache firewall rules#

Security · Azure Cache for Redis · 2022_09

Determine if there is an excessive number of firewall rules for the Redis cache.

Description#

Azure Cache for Redis provides the functionality to create firewall rules, limiting the IP addresses that can access the resources. Normally, you want to limit the number of firewall rules.

Recommendation#

The Redis cache has more than ten (10) firewall rules. Some rules may not be needed.

Examples#

Configure with Azure template#

To deploy caches that pass this rule:

  • Set the properties.startIP property to the start of the IP address range.
  • Set the properties.endIP property to the end of the IP address range.
Azure Template snippet
{
  "type": "Microsoft.Cache/redis/firewallRules",
  "apiVersion": "2022-05-01",
  "name": "string",
  "properties": {
    "startIP": "string",
    "endIP": "string"
  }
}

Configure with Bicep#

To deploy caches that pass this rule:

  • Set the properties.startIP property to the start of the IP address range.
  • Set the properties.endIP property to the end of the IP address range.
Azure Bicep snippet
resource symbolicname 'Microsoft.Cache/redis/firewallRules@2022-05-01' = {
  name: 'string'
  parent: resourceSymbolicName
  properties: {
    startIP: 'string'
    endIP: 'string'
  }
}

Last update: 2022-10-03

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