Re: [gentoo-dev] Slapd calls nss_ldap before opening its ports

[Benjamin Smee <strerror@gentoo.org>]

On Monday 22 October 2007 13:12:29 Bertram Scharpf wrote:
> Hi,
>
> when setting up LDAP Pam authentication I encountered a
> problem that seems to be neither Slapd- nor
> nss_ldap-specific.
>
> When running the init script there comes up an error that
> clutters up my syslog with a lot of useless error messages:
>
>   @(#) $OpenLDAP: slapd 2.3.38 (Oct 18 2007 22:12:26) $
> 	root@myhost:/var/tmp/portage/net-nds/openldap-2.3.38/work/openldap-2.3.38/
>servers/slapd nss_ldap: failed to bind to LDAP server ldap://127.0.0.1:
> Can't contact LDAP server nss_ldap: failed to bind to LDAP server
> ldap://127.0.0.1/: Can't contact LDAP server nss_ldap: failed to bind to
> LDAP server ldapi://%2fvar%2frun%2fldapi_sock/: Can't contact LDAP server
> ...
>   nss_ldap: could not search LDAP server - Server is unavailable
>   WARNING: No dynamic config support for database ldbm.
>   slapd starting
>
> I found out that the Gentoo init script activates the
> options "-u ldap -g ldap". Without them, the error messages
> do not appear. Therefore I suppose the slapd daemon tries to
> obtain passwd/shadow information for ldap via nss_ldap. At
> least when I say "compat" in nsswitch.conf, the error
> message doesn't appear as well.

instead of -u ldap -g ldap, try putting in the UID and GID. This should stop 
the calls to the server.

> The files should be searched first. The "ldap" information
> is present in all three of them. I even tried to chown the
> shadow file to ldap but this didn't save me from the weird
> messages either.

Don't play with the perms on /etc/shadow, you're just openning up security 
holes.


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Benjamin Smee (strerror)
net-mail/netmon/forensics/crypto/ldap
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