Date: Thu, 26 Jul 2018 09:31:40 -0500 From: Kyle Evans <kevans@freebsd.org> To: Shawn Webb <shawn.webb@hardenedbsd.org> Cc: "Rodney W. Grimes" <rgrimes@freebsd.org>, src-committers <src-committers@freebsd.org>, svn-src-projects@freebsd.org Subject: Re: svn commit: r336731 - projects/bectl/sbin/bectl Message-ID: <CACNAnaH9OABb5RTHZ%2BejWJ_Xib=HkUVB-VxtE8v6dK40sJc4kQ@mail.gmail.com> In-Reply-To: <20180726140749.k2zgrtbrmquawbhs@mutt-hbsd> References: <20180726131959.qplqj62fkjzcfyid@mutt-hbsd> <201807261332.w6QDWdQI045745@pdx.rh.CN85.dnsmgr.net> <CACNAnaGxqtr8P8_oway7OpTqh5O90zC79gE9WsACmd1PZP8FrQ@mail.gmail.com> <20180726140749.k2zgrtbrmquawbhs@mutt-hbsd>
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On Thu, Jul 26, 2018 at 9:07 AM, Shawn Webb <shawn.webb@hardenedbsd.org> wrote: > On Thu, Jul 26, 2018 at 08:47:30AM -0500, Kyle Evans wrote: >> On Thu, Jul 26, 2018 at 8:32 AM, Rodney W. Grimes >> <freebsd@pdx.rh.cn85.dnsmgr.net> wrote: >> > -- Start of PGP signed section. >> >> On Thu, Jul 26, 2018 at 04:07:37AM +0000, Kyle Evans wrote: >> >> > Author: kevans >> >> > Date: Thu Jul 26 04:07:36 2018 >> >> > New Revision: 336731 >> >> > URL: https://svnweb.freebsd.org/changeset/base/336731 >> >> > >> >> > Log: >> >> > bectl(8): Redo jail using jail(3) API >> >> > >> >> > The jail is created with allow.mount, allow.mount.devfs, and >> >> > enforce_statfs=1. Upon creation, we immediately attach, chdir to "/", and >> >> > drop the user into a shell inside the jail. >> >> > >> >> > The default IP for this is arbitrarily 10.20.30.40. >> >> >> >> It seems this would only allow working in a single jailed BE at a >> >> time, correct? >> > >> > Also it is just bad practice to use arbitrary IP's from >> > rfc1918 space. IMHO it would be better to pick a >> > rfc3927 link local address, or one of the rfc5737 test >> > network addresses. >> > >> > Please see RFC5735 page 6, table in section 4, no >> > place in FreeBSD base system should we be shipping >> > stuff that uses rfc1918, that is private space that >> > does not belong to the OS. >> > >> >> Right on both accounts (Shawn + Rod)... I changed it from an arbitrary >> IP in 192.168/16 space that was conflicting with my local network >> (heh... that was fun) with the intent of later changing it to just be >> configurable rather than hard-coding an IP [1] because I think that no >> matter what choice I try to go with, someone's going to want something >> else. I'd rather not make such choices at all and force you to instead >> specify an IP every time, a la "bectl jail testenv 10.8.0.100". > > Or perhaps to jail the BE without an IP at all. Sometimes all I want > to do before rebooting into a new BE is just set an rc.conf value > (disable a service, for example). > > Also, as we look forward to IPv6, it would be nice if IPv6 was > supported as well. > As I said in the e-mail you guys are replying to, I plan on getting out of the IP game because this game sucks. =) If it's useful, `bectl jail` could grow the ability to specify jail parameters via -o, e.g. `bectl jail -o ip4.addr=... -o ip6.addr=... -o allow.mount=false testenv ...`
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