Default value for UIDs

[Chris Rees]

On 28 June 2011 20:57, Chris Rees <crees at freebsd.org> wrote:
> On 28 June 2011 20:50, jhell <jhell at dataix.net> wrote:
>> On Tue, Jun 28, 2011 at 06:30:23PM +0100, Chris Rees wrote:
>>> On 28 June 2011 17:59, Dan Nelson <dnelson at allantgroup.com> wrote:
>>> > In the last episode (Jun 28), Chris Rees said:
>>> >> Hi all,
>>> >>
>>> >> [crees at zeus]~% tail -n 2 /usr/ports/UIDs
>>> >> dbxml:*:949:949::0:0:dbXML user:/nonexistent:/sbin/nologin
>>> >> nobody:*:65534:65534::0:0:Unprivileged user:/nonexistent:/usr/sbin/nologin
>>> >> [crees at zeus]~% grep crees /etc/passwd
>>> >> crees:*:1001:1001:Chris Rees:/home/crees:/bin/tcsh
>>> >> chris:*:1001:1001:Chris Rees:/home/crees:/bin/tcsh
>>> >> [crees at zeus]~%
>>> >>
>>> >> I'm a little concerned at how close the ports UIDs are getting to the
>>> >> username space...
>>> >
>>> > There are only 216 entries in UIDs, though, so if people are just using
>>> > "last entry + 1" when adding new ones, they should probably start filling
>>> > the gaps instead.  The 100s and 200s are pretty dense, but 350-399 only has
>>> > 5 entries, 400-499 has 4, 600-699 has 7, 700-799 has 3, etc.
>>> >
>>>
>>> Thank you for pointing that out (d'oh).
>>>
>>> However, perhaps we could still address the *potential* problems. To
>>> use one example, Debian has (as long as I can remember) used 10001 for
>>> the first username. When we have 65535 - 99 UIDs to play with,
>>> expansion like this isn't a problem.
>>>
>>> Could it be worth it? Think of ten years down the line.
>>>
>>
>> Best part would be to find every port that doesnt need a statically
>> allocated UID/GID and just dynamically allocate them after a certain
>> range '30000-50000' or whatever for ~20,000 ports and divide that
>> namespace up by category.
>>
>>
>> dbxml really does it really need to be static ? it just needs to run.
>>
>> Also: (stable/8) /usr/ports/UIDs
>> dbxml:*:945:945::0:0:& user:/nonexistent:/sbin/nologin
>> dbxml:*:949:949::0:0:dbXML user:/nonexistent:/sbin/nologin
>>
>> Which one of these are we planning on actually using here ?
>>
>
> Interesting... glewis added the second one.
>
> Greg, what did the pointyhat say?
>
> http://www.freebsd.org/cgi/cvsweb.cgi/ports/UIDs.diff?r1=1.156;r2=1.155;f=h
>


Mystery solved.

http://www.freebsd.org/cgi/cvsweb.cgi/ports/UIDs

Chris