Re: Fail to test uid of OpenLDAP with TLS...

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On 24/05/11 20:50 +0700, Nguyen, Quoc Khanh wrote:
Hi all,
I'm trying to get SASL working with OpenLDAP + TLS. I got it
working without TLS with these settings:


TLSCACertificateFile /var/myCA/cacert.crt
TLSCertificateFile /var/myCA/server_crt.pem

TLSCertificateKeyFile /var/myCA/server_key.pem

# Use the following if client authentication is required
#TLSVerifyClient demand
# ... or not desired at all
TLSVerifyClient never

What '-h' parameter are you starting slapd with?

ldap_servers: ldaps://localhost
ldap_bind_dn: cn=admin,dc=abc,dc=com
ldap_bind_pw: 123456789
ldap_search_base: dc=abc,dc=com

This works great with testsaslauthd:
root@ldap:/usr/local/sasl2/sbin# ./testsaslauthd -u khanhnq
-p 1234560:
OK "Success."

However, when I add these lines to saslauthd.conf, it fails:
ldap_start_tls: yes
ldap_tls_cacert_dir: /var/myCA
ldap_tls_cacert_file: /var/myCA/cacert.crt
ldap_tls_cert: /var/myCA/server_crt.pem
ldap_tls_key: /var/myCA/server_key.pem

You should change:
    ldap_servers: ldaps://localhost
    ldap_servers: ldap://localhost

when using starttls, and you should verify that you're starting slapd with
'ldap:///' as one of your -h URLs.

In your slapd config, you specified 'TLSVerifyClient never' (no client
authentication), but in your saslauthd.conf, you've specified a cert and a
key. Do you intend to do client TLS authentication? If not, those two lines
should not be needed.

For more information, see 'saslauthd/LDAP_SASLAUTHD' within the cyrus sasl
source, and slapd.conf(5).

root@ldap:/usr/local/sasl2/sbin# ./testsaslauthd -u khanhnq -p 123456
NO "authentication failed"

When i checked /var/log/auth.log, i got a messages:
May 24 16:27:49 ldap saslauthd[870]: detach_tty : master pid is: 870
May 24 16:27:49 ldap saslauthd[870]: ipc_init : listening on socket:
May 24 16:28:13 ldap saslauthd[870]: start tls failed (Can't contact LDAP
May 24 16:28:13 ldap saslauthd[870]: Authentication failed for khanhnq:
Cannot connect to ldap server (configuration error) $

May 24 16:28:13 ldap saslauthd[870]: do_auth : auth failure: [user=khanhnq]
[service=imap] [realm=] [mech=ldap] [reason=Unknown]

Dan White

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