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[Daniel Aleksandersen <1103480@xxxxxxxxxxxxxxxxxx>]

The use-case is obviously to offer novice users an automated review of
what problems their firewall may create for them. With the assertion
that users are indeed very likely to configure their system in a way
that will interrupt their normal use of their system.

Expert users may spot errors or omissions in their configuration.

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https://bugs.launchpad.net/bugs/1103480

Title:
  Warn about what I am about to break/automated review of rules

Status in Gufw:
  In Progress

Bug description:
  For example, if I block outgoing port 80 I would like a Pro and Con
  list of reasons why it is a good and a bad idea to block this port.
  Like an automated security review.

  “This rule will prevent the following programs from behaving as
  expected:\n* Web browsers\n* Most web integration.\n\n This is only
  recommended in a very limited environment.”

  Or even smart-service usage detection:

  “The open gajim process appears to be a XMPP client* but you have not
  opened the relevant service ports. Would you like to create rules for
  that?”

  * Based on open ports/sockets mapped against registered TCP port
  usage.

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