On Аўт, 12 жні 2025, Thomas Boroske via FreeIPA-users wrote:
Dear FreeIPA experts,
I am trying to get the "subid" feature of my FreeIPA managed
installation working to use on some Debian 12 workstations (ultimately
to use rootless docker).
The Server is IPA, Version: 4.12.2
The debian 12 freeipa-client package is 4.9.11-1
The systems were originally not installed with the "--subid" option, I
therefore added the line
"subuid: sss"
manually to /etc/nsswitch.conf.
However, I also did an ipa-client-install with --force-join --subid on
one system to see if it changed something.
With the nsswitch.conf setup like that, I can do:
dockeruser@stu-workstation2:~$ ipa subid-find dockeruser
------------------------
1 subordinate id matched
------------------------
Eindeutige ID: bdd556b6-1bb1-4d4f-a2a0-aab35108dcb2
Eigentümer: dockeruser
SubUID range start: 2147549184
SubUID range size: 65536
SubGID range start: 2147549184
SubGID range size: 65536
-------------------------------------
Anzahl der zurückgegebenen Einträge 1
-------------------------------------
This looks fine.
The problem is, that this will not work:
dockeruser@stu-workstation2:~$ getsubids dockeruser
Error fetching ranges
If I enter a line for "dockeruser" into /etc/subuid, the getsubuids command
will display it.
This means the setting in /etc/nsswich.conf seems to be ignored or something
else
causes it to fall back to looking in the file.
What does strace tell when you run getsubids?
$ strace -e trace=file getsubids dockeruser
--
/ Alexander Bokovoy
Sr. Principal Software Engineer
Security / Identity Management Engineering
Red Hat Limited, Finland
--
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