What we want to achieve is user using services like OpenVPN, webproxy, emails, file sharing, etc will only need to remember their MS AD password and they will be able to login to the corresponding services they are entitle to used. In order to do so, we will need to configure OpenLDAP on Linux to authenticate with MS AD server. OpenLDAP will contain the user information but authentication will come from MS AD.
Sent from my iPad On Jul 18, 2010, at 11:31 PM, Dan White <dwh...@olp.net> wrote: > On 18/07/10 21:08 +0600, OSHIM wrote: >> Hi, >> I need a help from you guys. >> Anyone know how to customize Squid, Dansguardian, Postfix, Samba to use >> OpenLDAP and let OpenLDAP authenticate the username/password with MS-AD? > > When performing SASL binds against OpenLDAP, you can configure > /usr/lib/sasl2/slapd.conf with: > > pwcheck_method: saslauthd > mech_list: plain login > > and configure /etc/saslauthd.conf with: > > ldap_servers: ldap://192.0.2.1/ ldap_use_sasl: yes ldap_mech: DIGEST-MD5 > and consequently you would configure your /etc/postfix/sasl/smtpd.conf > with: > > pwcheck_method: saslauthd > mech_list: plain login > > Configuring identical contents for /etc/saslauthd.conf on your Postfix > server would authenticate directly to the MS-AD server. If you really do > wish to authenticate to the OpenLDAP server and have it re-authenticate to > AD, configure your /etc/saslauthd.conf with: > > ldap_servers: ldap://192.0.2.2/ > ldap_use_sasl: yes > ldap_mech: PLAIN > > Where 192.0.2.2 is the address of your slapd server. You would also want to > configure an SSL/TLS protection layer to protect the transmission of your > passwords to the slapd server. > > See Chapter 15 (Using SASL) of the OpenLDAP administrator's guide for > authz-regexp configuration that should be necessary to complete this > approach. Also, see saslauthd/LDAP_SASLAUTHD within the cyrus sasl source > tree for saslauthd.conf documentation. For trouble shooting, see > 'testsaslauthd', 'smtptest', and 'saslfinger'. The first two are > distributed with cyrus sasl, and the last is distributed by Patrick > Koetter. > > I'm not familiar with configuring Squid, Dansguardian, and Samba in a > scenario like this, but I would imagine doing what you want (proxying > authentication via slapd) is going to get exponentially complex. It may > make more sense to have those applications authenticate directly to the AD > server. > > -- > Dan White
