Date: Mon, 25 Jun 2018 14:03:47 -0500 From: Valeri Galtsev <galtsev@kicp.uchicago.edu> To: freebsd-questions@freebsd.org Subject: Re: FreeBSD-11.1 - symbolic links in jails Message-ID: <cfde43f4-8c18-2b87-4f3c-b39870b8be23@kicp.uchicago.edu> In-Reply-To: <5c01d3596c548d3bac00e22ff2fcd2a5.squirrel@webmail.harte-lyne.ca> References: <5c01d3596c548d3bac00e22ff2fcd2a5.squirrel@webmail.harte-lyne.ca>
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On 06/25/18 11:59, James B. Byrne via freebsd-questions wrote: > I am curious about the following observed behaviour: > > On the host I see this: > > ll /usr/jails/mx32/etc/a* > lrwxr-xr-x 1 root wheel 17 Jun 25 12:45 > /usr/jails/mx32/etc/aliases -> /etc/mail/aliases > > more /usr/jails/mx32/etc/aliases > # $FreeBSD: releng/11.1/etc/mail/aliases 243752 2012-12-01 15:11:46Z > rwatson $ > # @(#)aliases 5.3 (Berkeley) 5/24/90 > # > . . . > > On the jail I see this: > > ll /etc/alias* > lrwxr-xr-x 1 root wheel 17 Jun 25 12:45 /etc/aliases -> > /etc/mail/aliases Inside jail this is exactly what I would expect. Namely, leading slash is root directory of the jail. This is "filesystem part" of intended jail behavior, which you also can call chroot behavior. And therefore symlink pointing to absolute path is different inside and outside of jail. Valeri > > # $FreeBSD: releng/11.0/etc/mail/aliases 243752 2012-12-01 15:11:46Z > rwatson $ > # @(#)aliases 5.3 (Berkeley) 5/24/90 > # mx32 > # > . . . > > I wish to confirm that this is intended behaviour; that a single > symbolic link can have differing target files depending whether one is > in a jail or not. > > -- ++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++
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