LDAP Integration

Obtaining Credential Information

To find the ldap-role-query-url and ldap-role-query-regex to use, query your user roles. For example, if there is a user named kiran on the IPA LDAP server ldap://myldapserver.mycompany.com, you could use the following curl command to get the role information:

$ curl --user "uid=kiran,cn=users,cn=accounts,dc=mycompany,dc=com" 
"ldap://myldapserver.mycompany.com/uid=kiran,cn=users,cn=accounts,dc=mycompany,dc=com?memberOf"

When successful, it returns information similar to the following:

DN: uid=kiran,cn=users,cn=accounts,dc=mycompany,dc=com
memberOf: cn=ipausers,cn=groups,cn=accounts,dc=mycompany,dc=com
memberOf: cn=MyCompany_SuperUser,cn=roles,cn=accounts,dc=mycompany,dc=com
memberOf: cn=test,cn=groups,cn=accounts,dc=mycompany,dc=com

• ldap-dn matches the DN, which is uid=kiran,cn=users,cn=accounts,dc=mycompany,dc=com.
• ldap-role-query-url includes the LDAP URI + the DN + the LDAP attribute that represents the role/group the member belongs to, such as memberOf.
• ldap-role-query-regex is a regular expression that matches the role names. The matching role names are used to grant and revoke privileges in OmniSci. For example, if we created some roles on an IPA LDAP server where the role names begin with MyCompany_ (for example, MyCompany_Engineering, MyCompany_Sales, MyCompany_SuperUser), the regular expression can filter the role names using MyCompany_.
• ldap-superuser-role is the role/group name for OmniSci users who are superusers once they log on to the OmniSci database. In this example, the superuser role name is MyCompany_SuperUser.

ldap-uri = "ldap://myldapserver.mycompany.com"
ldap-uri = ldap://myldapserver.mycompany.com

Setting Up LDAP with OmniSci

To integrate LDAP with OmniSci, you need the following:

• A functional LDAP server, with all users/roles/groups created (ldap-uri, ldap-dn, ldap-role-query-url, ldap-role-query-regex, and ldap-superuser-role) to be used by OmniSci. You can use the curl command to test and find the filters.
• A functional OmniSci server, version 4.1 or higher.

Once you have your server information, you can configure OmniSci to use LDAP authentication.

1. Locate the omnisci.conf file and edit it to include the LDAP parameter. For example:

   ldap-uri = "ldap://myldapserver.mycompany.com"
   ldap-dn = "uid=$USERNAME,cn=users,cn=accounts,dc=mycompany,dc=com"
   ldap-role-query-url = "ldap://myldapserver.mycompany.com/uid=$USERNAME,cn=users,cn=accounts,dc=mycompany,dc=com?memberOf"
   ldap-role-query-regex = "(MyCompany_.*?),"
   ldap-superuser-role = "MyCompany_SuperUser"

2. Restart the OmniSci server:

   sudo systemctl restart omnisci_server
   sudo systemctl restart omnisci_web_server

3. Log on to omnisql as MyCompany user, or any user who belongs to one of the roles/groups that match the filter.

   Important

   When you use LDAP authentication, the default omnisci user and password HyperInteractive do not work unless you create the omnisci user with the same password on the LDAP server. There is no authentication fallback.

If your login fails, inspect $OMNISCI_STORAGE/mapd_log/omnisci_server.INFO to check for any obvious errors about LDAP authentication.

Once you log in, you can create a new role name in omnisql, and then apply GRANT/REVOKE privileges to the role. Log in as another user with that role and confirm that GRANT/REVOKE works.

Using LDAPS

To use LDAPS, OmniSci must trust the LDAP server's SSL certificate. To achieve this, you must have the CA for the server's certificate, or the server certificate itself. Install the certificate as a trusted certificate.

IPA on CentOS

To use IPA as your LDAP server with OmniSci running on CentOS 7:

1. Copy the IPA server CA certificate to your local machine.

   scp root@myldapserver:/etc/ipa/ca.crt /etc/pki/ca-trust/source/anchors/ipa-ca.pem

2. Update the PKI certificates.

   update-ca-trust

3. Edit /etc/openldap/ldap.conf to add the following line.

   TLS_CACERT      /etc/pki/tls/certs/ca-bundle.crt

4. Locate the omnisci.conf file and edit it to include the LDAP parameter. For example:

   ldap-uri = "ldaps://myldapserver.mycompany.com"
   ldap-dn = "uid=$USERNAME,cn=users,cn=accounts,dc=mycompany,dc=com"
   ldap-role-query-url = "ldaps://myldapserver.mycompany.com/uid=$USERNAME,cn=users,cn=accounts,dc=mycompany,dc=com?memberOf"
   ldap-role-query-regex = "(MyCompany_.*?),"
   ldap-superuser-role = "MyCompany_SuperUser"

5. Restart the OmniSci server:

   sudo systemctl restart omnisci_server
   sudo systemctl restart omnisci_web_server

IPA on Ubuntu

To use IPA as your LDAP server with OmniSci running on Ubuntu:

1. Copy the IPA server CA certificate to your local machine.

   mkdir /usr/local/share/ca-certificates/ipa
   scp root@myldapserver:/etc/ipa/ca.crt /usr/local/share/ca-certificates/ipa/ipa-ca.pem

2. Rename ipa-ca.crm to ipa-ca.crt so that the certificates bundle update script can find it:

   mv /usr/local/share/ca-certificates/ipa/ipa-ca.pem /usr/local/share/ca-certificates/ipa/ipa-ca.crt

3. Update the PKI certificates:

   update-ca-certificates

4. Edit /etc/openldap/ldap.conf to add the following line:

   TLS_CACERT      /etc/ssl/certs/ca-certificates.crt

5. Locate the omnisci.conf file and edit it to include the LDAP parameter. For example:

   ldap-uri = "ldaps://myldapserver.mycompany.com"
   ldap-dn = "uid=$USERNAME,cn=users,cn=accounts,dc=mycompany,dc=com"
   ldap-role-query-url = "ldaps://myldapserver.mycompany.com/uid=$USERNAME,cn=users,cn=accounts,dc=mycompany,dc=com?memberOf"
   ldap-role-query-regex = "(MyCompany_.*?),"
   ldap-superuser-role = "MyCompany_SuperUser"

6. Restart the OmniSci server:

   sudo systemctl restart omnisci_server
   sudo systemctl restart omnisci_web_server

Active Directory

1. Locate the omnisci.conf file and edit it to include the LDAP parameter. For example:

   ldap-uri = "ldap://myldapserver.mycompany.com"
   ldap-dn = "cn=$USERNAME,cn=users,dc=qa-mycompany,dc=com"
   ldap-role-query-url = "ldap:///myldapserver.mycompany.com/cn=$USERNAME,cn=users,dc=qa-mycompany,dc=com?memberOf"
   ldap-role-query-regex = "(OMNISCI_.*?),"
   ldap-superuser-role = "OMNISCI_SuperUser"

2. Restart the OmniSci server:

   sudo systemctl restart omnisci_server
   sudo systemctl restart omnisci_web_server