[Bug 254741] jail(8) fails with "Usage" message when invocation is like it suggests

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Sun Apr 4 17:48:26 UTC 2021


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254741

Jamie Gritton <jamie at FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|jail at FreeBSD.org            |jamie at FreeBSD.org
             Status|New                         |In Progress
                 CC|                            |jamie at FreeBSD.org

--- Comment #1 from Jamie Gritton <jamie at FreeBSD.org> ---
The program is correct, and the problem is just in the usage message (also in
the man page).  The "old-style" command line is four fixed arguments, with the
non-optional IP address being one of them.  You can specify '' as the IP
address, but there has to be an argument.

By the way, that will make a jail with no internet access at all; to make one
without IP address restrictions, you'll need something like :

jail -c path=/disk/jail host.hostname=testjail ip4=inherit command=/etc/rc

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