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Use valid VM computer names#

Operational Excellence · Virtual Machine · Rule · 2020_06 · Awareness

Virtual Machine (VM) computer name should meet naming requirements.

Description#

When configuring Azure VMs the assigned computer name must meet operation system (OS) requirements.

The requirements for Windows VMs are:

  • Between 1 and 15 characters long.
  • Alphanumerics, and hyphens.
  • Can not include only numbers.

The requirements for Linux VMs are:

  • Between 1 and 64 characters long.
  • Alphanumerics, periods, and hyphens.
  • Start with alphanumeric.

Recommendation#

Consider using computer names that meet OS naming requirements. Additionally, consider using computer names that match the VM resource name.

Notes#

VM resource names have different naming restrictions. See Azure.VM.Name for details.

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