Description of problem: We have a setup here where every fedora desktop system has a partion shared over nfs, giving access to machines in a certain netgroup, which is defined in ldap. Up to Fedora 12 and RHEL 5.5, it works to have netgroup: files ldap in /etc/nsswitch.conf and the netgroup is automatically picked up and used. Contents of /etc/exports: /data1 @netname(rw,root_squash,sync,secure) Now with Fedora 14 beta, the nfs share is not accessible from other computers, error is: Oct 22 10:54:45 eendracht rpc.mountd[1354]: refused mount request from xx.xx.xx.xx for /data (/data): unmatched host (where xx is ip address of nfs client attempting to acces the disk). Temporary workaround: a small script which uses ldapsearch to retrieve the netgroup from ldap, and write it to /etc/netgroup . So that also shows, that netgroup support in the nfs server is not the issue, it must be something in nss_ldap that fails to read the netgroup and pass it on to programs that request it. Apart from some sanity checking, my script does this to create the netgroup file: ldapsearch -LLL -x 'cn=netname'|egrep '^cn:|^nisNetgroupTriple:' | awk -F: 'ORS=" " {print $2}' Version-Release number of selected component (if applicable): nss_ldap-265-6.fc14.i686
Can you attach a copy of your /etc/ldap.conf? I'm wondering if you're using TLS and are running into a problem stemming from the switch from OpenSSL to NSS for the crypto.
Created attachment 455107 [details] /etc/nss_ldap.conf There is no /etc/ldap.conf. Do you mean /etc/nss_ldap.conf? I'll attatch that file, just to be sure. Anyway, TLS is being used, and all other information from ldap is working (users, passwords, groups, automount info)
(In reply to comment #2) > Created attachment 455107 [details] > /etc/nss_ldap.conf > > There is no /etc/ldap.conf. Do you mean /etc/nss_ldap.conf? I'll attatch that > file, just to be sure. Yes, that's right. I can't believe I forgot that I changed the name of the configuration file to remove that ambiguity. > Anyway, TLS is being used, and all other information from ldap is working > (users, passwords, groups, automount info) TLS makes this sound vaguely like bug #636956, also in part because rpc.mountd uses fork(). Does the workaround from https://bugzilla.redhat.com/show_bug.cgi?id=636956#c36, made to the "nfs" init script, make a difference?
Also just FYI. SSSD has released 1.4 that will be available as a 0 day errata for F14 that will support netgroups. Would you mind considering it as an alternative to using nss_ldap in your deployment?
The workaround in the nfs init script doesn't seem to make a difference. But if SSSD can do netgroups, that would be fine too.
I wasn't sure if its better to post here or to create a bug report against the rawhide package: The field ldap_netgroup_search_base does not get evaluated. in /etc/sssd/sssd.conf: ... ldap_search_base = ou=isg,ou=inf,ou=auth,o=ethz,c=ch ldap_netgroup_search_base = ou=netgroup,ou=inf,ou=auth,o=ethz,c=ch ... and /var/log/sssd/sssd_D.ETHZ.CH.log shows after a "getent netgroup baumanmo": (Sun Oct 31 10:25:14 2010) [sssd[be[D.ETHZ.CH]]] [sdap_get_generic_send] (6): calling ldap_search_ext with [(&(cn=baumanmo)(objectclass=nisNetgroup))][ou=isg,ou=inf,ou=auth,o=ethz,c=ch]. How to reproduce (was running on RHEL6 Beta 2 refresh): * rebuild ding-libs-0.1.2-3.fc15.src.rpm, sssd-1.4.0-2.fc15.src.rpm on system and install it. * configure sssd.conf with the lines above (+ have a otherwise running config) * in /etc/nsswitch.conf change settings to netgroup: files sss * restart service sssd * do your netgroup query and watch how it uses ldap_search_base rather than ldap_netgroup_search_base.
(In reply to comment #6) > I wasn't sure if its better to post here or to create a bug report against the > rawhide package: > BZ #648150 is tracking this issue in SSSD.
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