Two mailing lists handle general questions about FreeBSD,
      FreeBSD-questions and
      FreeBSD-hackers.  In some cases, it is not really
      clear which group you should ask.  The following criteria should help
      for 99% of all questions, however:
If the question is of a general nature, ask
	  FreeBSD-questions.  Examples might be questions
	  about installing FreeBSD or the use of a particular UNIX®
	  utility.
If you think the question relates to a bug, but you are not sure,
	  or you do not know how to look for it, send the message to
	  FreeBSD-questions.
If the question relates to a bug, and you are
	  sure that it is a bug (for example, you can
	  pinpoint the place in the code where it happens, and you maybe have
	  a fix), then send the message to
	  FreeBSD-hackers.
If the question relates to enhancements to FreeBSD, and you
	  can make suggestions about how to implement them, then send the
	  message to FreeBSD-hackers.
There are also a number of other specialized mailing lists, which caters to more specific interests. The criteria above still apply, and it is in your interest to stick to them, since you are more likely to get good results that way.
All FreeBSD documents are available for download at https://download.freebsd.org/ftp/doc/
Questions that are not answered by the
    documentation may be
    sent to <freebsd-questions@FreeBSD.org>.
    Send questions about this document to <freebsd-doc@FreeBSD.org>.