I am pretty sure this is a problem in your NFS setup. NFS limits the number of
groups transmitted to server to 16 by default. (Some newer implementations
extend the protocol to transmit 32 or more group memberships.)
To verify this is an NFS-related issue, try creating a local file (/tmp should
usually be a local FS) like this (as root):
echo hello /tmp/localtest
chown 0.3015 /tmp/localtest
chmod 0640 /tmp/localtest
su - ro2 # i assume this uses pam-ldap
cat /tmp/localtest
exit
if the cat works, this is a non-LDAP problem.
Also, while you're logged in as root, compare the output of
id ro2
with the output of just
id
when logged in as ro2. The former shows you what nss-ldap returns, the latter
what perms pam-ldap actually sets.The sets should be the same. :-)
--
using libnss-ldap, user can be member of max 16 groups
https://bugs.launchpad.net/bugs/140975
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