* [ptxdist] [PATCH 2/2] avahi: add user to /etc/passwd @ 2014-12-16 22:20 Robert Schwebel 2014-12-17 8:30 ` Alexander Dahl 0 siblings, 1 reply; 4+ messages in thread From: Robert Schwebel @ 2014-12-16 22:20 UTC (permalink / raw) To: ptxdist; +Cc: Robert Schwebel We re-use the uids from Debian. Signed-off-by: Robert Schwebel <r.schwebel@pengutronix.de> --- generic/etc/passwd | 1 + 1 file changed, 1 insertion(+) diff --git a/generic/etc/passwd b/generic/etc/passwd index 49c13c6..f5f5c41 100644 --- a/generic/etc/passwd +++ b/generic/etc/passwd @@ -4,6 +4,7 @@ ftp:x:11:101:ftp user:/home:/bin/false www:x:12:102:www user:/home:/bin/false sshd:x:100:65534:SSH Server:/var/run/sshd:/bin/false messagebus:x:103:104:messagebus:/dev/null:/bin/false +avahi:x:107:115:Avahi mDNS daemon:/var/run/avahi-daemon:/bin/false systemd-network:x:202:202:systemd-network:/dev/null:/bin/false systemd-resolve:x:203:65534:systemd-resolve:/dev/null:/bin/false systemd-timesync:x:203:65534:systemd-timesync:/dev/null:/bin/false -- 2.1.3 -- ptxdist mailing list ptxdist@pengutronix.de ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [ptxdist] [PATCH 2/2] avahi: add user to /etc/passwd 2014-12-16 22:20 [ptxdist] [PATCH 2/2] avahi: add user to /etc/passwd Robert Schwebel @ 2014-12-17 8:30 ` Alexander Dahl 2014-12-17 9:31 ` Robert Schwebel 0 siblings, 1 reply; 4+ messages in thread From: Alexander Dahl @ 2014-12-17 8:30 UTC (permalink / raw) To: ptxdist Hei hei, Am 2014-12-16 23:20, schrieb Robert Schwebel: > We re-use the uids from Debian. Which are not fixed. See from the desktop I'm working on: % grep avahi /etc/passwd avahi:x:105:112:Avahi mDNS daemon,,,:/var/run/avahi-daemon:/bin/false Same for messagebus btw: % grep messagebus /etc/passwd messagebus:x:101:105::/var/run/dbus:/bin/false Or systemd (on another machine): % grep systemd /etc/passwd systemd-timesync:x:107:112:systemd Time Synchronization,,,:/run/systemd:/bin/false systemd-network:x:108:113:systemd Network Management,,,:/run/systemd/netif:/bin/false systemd-resolve:x:109:114:systemd Resolver,,,:/run/systemd/resolve:/bin/false systemd-bus-proxy:x:110:115:systemd Bus Proxy,,,:/run/systemd:/bin/false AFAIK Debian uses the next free uid when a service is installed for the first time and creates its system users. See `man 8 adduser`. > sshd:x:100:65534:SSH Server:/var/run/sshd:/bin/false Three different UIDs on three different Debian machines: 100, 103, 114 … I would probably find even more. > messagebus:x:103:104:messagebus:/dev/null:/bin/false > +avahi:x:107:115:Avahi mDNS daemon:/var/run/avahi-daemon:/bin/false > systemd-network:x:202:202:systemd-network:/dev/null:/bin/false > systemd-resolve:x:203:65534:systemd-resolve:/dev/null:/bin/false > systemd-timesync:x:203:65534:systemd-timesync:/dev/null:/bin/false Long story short: there are no fixed UIDs in Debian, just something like classes. See "9.2.2 UID and GID classes" on https://www.debian.org/doc/debian-policy/ch-opersys.html for details. Of course its fine to choose any default uid/gid for ptxdist, but re-using them from Debian is misleading. ;-) HTH & Greets Alex -- »With the first link, the chain is forged. The first speech censured, the first thought forbidden, the first freedom denied, chains us all irrevocably.« (Jean-Luc Picard, quoting Judge Aaron Satie) *** GnuPG-FP: 02C8 A590 7FE5 CA5F 3601 D1D5 8FBA 7744 CC87 10D0 *** -- ptxdist mailing list ptxdist@pengutronix.de ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [ptxdist] [PATCH 2/2] avahi: add user to /etc/passwd 2014-12-17 8:30 ` Alexander Dahl @ 2014-12-17 9:31 ` Robert Schwebel 2014-12-17 15:29 ` Uwe Kleine-König 0 siblings, 1 reply; 4+ messages in thread From: Robert Schwebel @ 2014-12-17 9:31 UTC (permalink / raw) To: ptxdist On Wed, Dec 17, 2014 at 09:30:13AM +0100, Alexander Dahl wrote: > Am 2014-12-16 23:20, schrieb Robert Schwebel: > > We re-use the uids from Debian. > > Which are not fixed. See from the desktop I'm working on: Uuuh, bad. Is there any distro out there with fixed numbers? Oterwhise we might just invent our own scheme. rsc -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | -- ptxdist mailing list ptxdist@pengutronix.de ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [ptxdist] [PATCH 2/2] avahi: add user to /etc/passwd 2014-12-17 9:31 ` Robert Schwebel @ 2014-12-17 15:29 ` Uwe Kleine-König 0 siblings, 0 replies; 4+ messages in thread From: Uwe Kleine-König @ 2014-12-17 15:29 UTC (permalink / raw) To: ptxdist On Wed, Dec 17, 2014 at 10:31:21AM +0100, Robert Schwebel wrote: > On Wed, Dec 17, 2014 at 09:30:13AM +0100, Alexander Dahl wrote: > > Am 2014-12-16 23:20, schrieb Robert Schwebel: > > > We re-use the uids from Debian. > > > > Which are not fixed. See from the desktop I'm working on: > > Uuuh, bad. Is there any distro out there with fixed numbers? Oterwhise > we might just invent our own scheme. Debian has (some) fixed uids. But this only applies to the ranges 0-99 and 60000-64999. See /usr/share/doc/base-passwd/README and /usr/share/base-passwd/passwd.master. (Fun fact: mysql has uid 106 on my vserver even though it has been granted a fixed uid.) Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ | -- ptxdist mailing list ptxdist@pengutronix.de ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2014-12-17 15:29 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2014-12-16 22:20 [ptxdist] [PATCH 2/2] avahi: add user to /etc/passwd Robert Schwebel 2014-12-17 8:30 ` Alexander Dahl 2014-12-17 9:31 ` Robert Schwebel 2014-12-17 15:29 ` Uwe Kleine-König
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