Group permissions are broken?
Dan Nelson
dnelson at allantgroup.com
Mon Aug 15 20:10:51 UTC 2011
In the last episode (Aug 15), Yuri said:
> User john is a member of both webcamd and vboxusers:
> # grep john /etc/group
> webcamd:*:145:john
> vboxusers:*:920:john
>
> When the file /tmp/my-test is owned by webcamd, user john can touch it ok:
> $ ls -l /tmp/my-test ; touch /tmp/my-test
> -rw-rw---- 1 vboxusers vboxusers 0 Aug 15 12:54 /tmp/my-test
>
> But when /tmp/my-test is owned by webcamd, user john gets an error:
> $ ls -l /tmp/my-test ; touch /tmp/my-test
> -rw-rw---- 1 webcamd webcamd 0 Aug 15 13:02 /tmp/my-test
> touch: /tmp/my-test: Permission denied
>
> Why does this error occur? Two groups seem identical. Just different group
> ids.
>
> Filesystem is UFS: /dev/ad10s1a on / (ufs, NFS exported, local)
As a sanity check, what is the output of the "groups" command? If you
recently edited /etc/group, maybe you need to log out and back in to a
credential with the new group list?
--
Dan Nelson
dnelson at allantgroup.com
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