Date: Tue, 12 Oct 2021 14:42:48 +0200 From: Guido Falsi via freebsd-current <freebsd-current@freebsd.org> To: freebsd-current@freebsd.org Subject: Re: [HEADSUP] making /bin/sh the default shell for root Message-ID: <b6475d11-97c2-fae6-0086-2e0de0404180@madpilot.net> In-Reply-To: <20211012142126.66036897@ernst.home> References: <CAD2Ti28tkY=Fyz-OrTjxQVwrNaDxitO_bn29TxoM=9WoP1ON5Q@mail.gmail.com> <6B2E21D5-0DF1-4BCC-A27C-DFFBB201FB52@gmail.com> <CAD2Ti29q8J6rLGPjLthxgfUiYR48kiQ9SiAf%2BSc_zVcsT5Ks6g@mail.gmail.com> <20211012142126.66036897@ernst.home>
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On 12/10/21 14:21, Gary Jennejohn wrote: > On Tue, 12 Oct 2021 06:59:00 -0400 > grarpamp <grarpamp@gmail.com> wrote: > >>> No. The system shell is supposed to make the system usable >>> by the users. Actually, the real problem is that the easiest way >>> to shoot one's own foot is by changing the language (say, the >>> shell) spoken by default by FreeBSD. >> >> Well, the FreeBSD system speaks sh for its own use, this is clearly >> documented as the shell called by init(8), and later by rc(8), >> it should probably be the root:0 entry at least for consistancy. >> No other shell is called by the FreeBSD system there. >> Whatever the users want for their own shells is really up >> to them to decide after that. >> >> "Default" is bit of low context word, as there is no falling >> back to some shell occuring, no filling in for some missing >> option, etc. Maybe use word "shipped" or "root" instead. >> >> Everyone said they already do, and will continue to, >> exec whatever shell they like, whether after login, >> or by changing the entry. So in addition to the user >> being ultimately responsible for their own box and usage, >> this well announced entry for UPDATING cannot therein >> really be responsible for any user self-shooting. >> >>> This is non-sense. >> >> Well, FreeBSD does not add every shell in base, >> does not add every app to base, etc. >> Some reasons for those limits should be obvious. >> This update gives further distilling clarity by >> limiting the number of shipped uid 0 entries to 1, >> with that 1 being sh. >> >>> Every unix user should know that it's >>> possible to changing the used shell by using >>> chsh and this includes root. >> >> Then for every user, this update is not a problem. >> > > I've been using UNIX both privately and professionally since 1984 > and I must admit that I never heard of chsh before seeing this > e-mail. I simply use vipw; it's the logical way to do this sort > of thing IMHO. But I suppose that this is the way to go for users > who don't have root access (which I always have). AFAIK only root can use vipw, while chsh is usable by all system users. Guess you've been root since 1984 :) -- Guido Falsi <mad@madpilot.net>
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