Re: need help with ldapdb plugin

From: Igor Brezac (igor at ipass dot net)
Date: Tue Jun 15 2004 - 18:16:51 EDT

  • Next message: Andreas Winkelmann: "Re: need help with ldapdb plugin"

    On Tue, 15 Jun 2004, Guillaume Rousse wrote:

    > I'm trying to setup smtp auth with ldapdb plugin, but I'm quite lost
    > with LDAP details...
    >
    > First, I build and installed the ldapdb plugin sucessfully:
    > katu3:/etc/postfix/sasl# ls /usr/lib/sasl2/libsasldb.*
    > /usr/lib/sasl2/libsasldb.a /usr/lib/sasl2/libsasldb.so.2@
    > /usr/lib/sasl2/libsasldb.la* /usr/lib/sasl2/libsasldb.so.2.0.18*
    > /usr/lib/sasl2/libsasldb.so@
    >
    > Then, I created /etc/postfix/sasl/smtpd.conf with the following entries:
    > pwcheck_method: auxprop
    > auxprop_plugin: ldapdb
    > ldapdb_id: cn=admin,dc=zarb,dc=org
                 ^^^^^^^^^^^^^^^^^^^^^^^
    This needs to be a username, not a dn. (admin?)

    > ldapdb_pw: *passwd*
    > ldapdb_mech: DIGEST-MD

    Try DIGEST-MD5

    >
    > The first two lines make sasl use the plugin, and seems to be OK (except
    > that I still have tons of messages "OTP unavailable because can't
    > read/write key database /etc/opiekeys: No such file or directory" in my
    > auth.log, how can I disable them ?)
    >
    > The following three configure the plugin to bind to slapd as the admin.
    > From OpenLDAP manual, I understand I could have used a less
    > privilegiated account, and then dropped privilege to user level, but
    > courier-imap authentication already use this kind of access, so it's OK
    > for me currently, and avoid to configure proxy authorisation.

    You cannot avoid proxy authorization setup.

    > However,
    > It doesn't work:
    >
    > Jun 15 23:12:57 katu3 slapd[5347]: conn=30 fd=37 ACCEPT from
    > IP=127.0.0.1:53435 (IP=0.0.0.0:389)
    > Jun 15 23:12:57 katu3 slapd[5353]: conn=30 op=0 BIND dn="" method=163
    > Jun 15 23:12:57 katu3 slapd[5356]: conn=30 op=1 BIND dn="" method=163
    > Jun 15 23:12:57 katu3 slapd[5356]: SASL [conn=30] Failure: Invalid syntax
    > Jun 15 23:12:57 katu3 slapd[5356]: SASL [conn=30] Failure: unable
    > canonify user and get auxprops
    > Jun 15 23:12:57 katu3 slapd[5356]: conn=30 op=1 RESULT tag=97 err=50
    > text=SASL(-14): authorization failure: unable canonify user and get auxprops
    > Jun 15 23:12:57 katu3 slapd[5362]: conn=30 op=2 UNBIND
    > Jun 15 23:12:57 katu3 slapd[5362]: conn=30 fd=37 closed
    >
    >
    > Last, and even if i'm still unable to check, I have to map authorisation
    > request using some sasl-regexp directive. As I want to use a specific
    > 'clearPassword' attribute (already used by courier-imap), I guess I have
    > to use something as:
    > sasl-regexp
    > uid=(.*),cn=digest-md5,cn=auth
    > ldap:///ou=users,dc=zarb,dc=org?userPassword?sub?(&(uid=$1)(objectClass=CourierMailAccount))

    sasl-regexp is used to map authorization usernames to ldap dns.

    Only userPassword and cmusaslsecretMECHNAME properties can be
    used for storing secrets.

    -- 
    Igor
    

  • Next message: Andreas Winkelmann: "Re: need help with ldapdb plugin"





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