I'm not an admin, but I would use a text editor to configure it as that would give _me_ full control over it.
Best to learn & understand what & why you are doing these sorts of thing concerning security.
Forums such as these will have experienced admins on who are the best people to ask for advice, as they actually use these tools on a daily basis to keep their machines secure.
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Linux since 1999, & also a BSD user.
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