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Use valid Public IP DNS labels#

Operational Excellence · Public IP address · Rule · 2020_06 · Awareness

Public IP domain name labels should meet naming requirements.

Description#

When configuring Azure Public IP addresses domain name labels must meet naming requirements. The requirements for Public IP domain name labels are:

  • Between 3 and 63 characters long.
  • Lowercase letters, numbers, and hyphens.
  • Start with a letter.
  • End a letter or number.
  • Domain name labels must be globally unique within a region.

Recommendation#

Consider using domain name labels that meet Public IP naming requirements. Additionally consider naming resources with a standard naming convention.

Notes#

This rule does not check if Public IP domain name labels are unique.

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