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How safe is to allow port 53 any

How safe is it to add the rule any--port 53--any the first rule.


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Parents Reply
  • Internal Network(s) -> DNS -> ANY rule
    This is a good idea but how about if we have a primary DNS in the DMZ and a secondary remotely located at a branch office.In this case we also need for zone transfer to work which needs outside access to the DMZ DNS.
Children