From mboxrd@z Thu Jan 1 00:00:00 1970 From: erik quanstrom Date: Mon, 3 Nov 2014 23:12:10 -0500 To: 9fans@9fans.net Message-ID: <0d8c0240f33dd5ccd2c595b17ae02c84@ladd.quanstro.net> In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Setting up Mail in Acme on the Raspberry Pi. Topicbox-Message-UUID: 22ffb208-ead9-11e9-9d60-3106f5b1d025 On Sat Nov 1 08:25:30 EDT 2014, charles.forsyth@gmail.com wrote: > On 27 October 2014 19:10, erik quanstrom wrote: > > > it's not complicated. permissions work like unix. > > > It's actually simpler but more powerful: groups are just users with members > instead of a distinct thing; membership of a group is checked > by the relevant file server and not the local kernel; group membership > depends on the user name at the file server, not a separate group ID or > list of current groups; and permission is allowed by the first of owner, > group and other in that order. like being a lazy term of art meaning similar, but not the same as. :-) i was being lazy about explaining the fact that groups have been implemented as you mention is not essential. a file server can do this any way it pleases. the kernels are famous (or notorious) for not doing group permissions at all. - erik