Date: Mon, 01 Mar 2010 13:16:50 -0800 From: Xin LI <delphij@delphij.net> To: Pawel Jakub Dawidek <pjd@freebsd.org> Cc: freebsd-current@freebsd.org, Subbsd <subbsd@gmail.com> Subject: Re: check for jailed environment for adjkerntz Message-ID: <4B8C2EC2.8070200@delphij.net> In-Reply-To: <20100301205520.GB1946@garage.freebsd.pl> References: <8237b2241002281515q5e953a48l4ac8a981fed407ab@mail.gmail.com> <20100301205520.GB1946@garage.freebsd.pl>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, On 2010/03/01 12:55, Pawel Jakub Dawidek wrote: > On Mon, Mar 01, 2010 at 02:15:41AM +0300, Subbsd wrote: >> jail with "complete" type have standard crontab a file of tasks. However not >> all standard task are adapted for work in jail an environment. For example >> adjkerntz which generates >> >> adjkerntz [46733]: sysctl (set: "machdep.wall_cmos_clock"): Operation not >> permitted >> >> I suggest to give adjkerntz concept about jail in which to it it is not >> necessary to work: > [...] > > I also always was finding that annoying, but only your e-mail made me to > think about ways to fix it and that maybe simple patch like the one > below will do? > > --- etc/crontab (wersja 204363) > +++ etc/crontab (kopia robocza) > @@ -22,4 +22,4 @@ > # > # Adjust the time zone if the CMOS clock keeps local time, as opposed to > # UTC time. See adjkerntz(8) for details. > -1,31 0-5 * * * root adjkerntz -a > +1,31 0-5 * * * root [ `sysctl -n security.jail.jailed` -eq 0 ] && adjkerntz -a I wouldn't mind if someone is willing to teach adjkerntz about the knowledge but I really think we should document explicitly somewhere that a jail host machine should have CMOS time set to UTC, which would avoid the whole codepath. Cheers, - -- Xin LI <delphij@delphij.net> http://www.delphij.net/ FreeBSD - The Power to Serve! Live free or die -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (FreeBSD) iQEcBAEBAgAGBQJLjC7CAAoJEATO+BI/yjfBMvoIALhi3ByqQUWUKT7Ebjaqro6f tvm5ZMc/S0ao67qbAqEfLuhKw+mdD0FFwRK5V02wrFk6WA/505fHWbO16FwNlsq0 5QoTEwM5NGkjouAPE8rk5cMH2Tx3/ImsAcNczqlQbEluwPx57fvp4mc06OEYMTQw IPYs756f71nBfmE8c4I7RKRXAFtiUJEhPH2g0LpeOi7AUhjcmpNBpTlQdzOuy4GK og0xL1+0GRC9ooYFMwd6RlsXOPZAkdvSt2PiCNnyN5+giQcK3ZvWo6+StGZwOB/z fS4bF6zJxJ2kfj/QPEBj54Axb9+IQbHlTA1rp6lRkMLi4NomCaZCWiD7FIAhaTs= =fPoZ -----END PGP SIGNATURE-----
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