Azure Classroom Series – 21/Feb/2020

Network Security Groups (NSG)

  • Network Security Groups can allow/deny network packets

  • NSG’s have priority ranging from 100-4096

  • NSG’s will have inbound & outbound rules

  • When multiple rules are present, then the order of processing the rules is from lower to higher priorty number (If the priority no is low, it has the highest priority )

  • Guidelines:

    • Never write rules which succeding numbers (300, 400)
    • Deny Rules for specific ip addresses should be given highest priority (number is low) and Allow for all lower priority (number is high) Preview
  • Refer Here for official azure documentation on Security Groups

  • Exercise: Create a NSG which allows http,ssh communication to all and deny any other packets from external sources.

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