This is a discussion on Problems with Heimdal, OpenLDAP, Cyrus SASL, GSSAPI, and Active Directory within the Linux Networking forums, part of the Linux Forums category; Hello, I'm not sure if this is the correct newsgroup for this question, but I would appreciate any help ...
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Hello,
I'm not sure if this is the correct newsgroup for this question, but I would appreciate any help in getting it where it needs to be. I'm running into an issue with binding to an Active Directory server using SASL and GSSAPI. I have followed the instructions on The Hut on how to set up a Linux workstation to authenticate to an AD server, but I keep getting the same error message: SASL/GSSAPI authentication started ldap_sasl_interactive_bind_s: Local error (82) additional info: SASL(-1): generic failure: GSSAPI Error: Miscellaneous failure (see text) (Message stream modified) I followed the instructions on http://www.hut.fi/cc/docs/kerberos/nss_ldap.html, but they cover using MIT Kerberos instead of using Heimdal Kerberos. I am running SuSE 9.0 on the workstation, and using all of the packages included with SuSE (which, other than Heimdal, exceeded the minimum version number required). The version numbers for the packages I'm using are: Heimdal: 0.6-75 i586 OpenLDAP: 2.1.22-73 i586 cyrus-sasl: 2.1.15-65 i586 cyrus-sasl-gssapi: 2.1.15-65 i586 OpenSSL: 0.9.7b-74 i586 nss_ldap: 207-88 i586 Here is my /etc/ldap.conf ---------------------------------------------------------------- # @(#)$Id: ldap.conf,v 1.8 2002/02/26 08:50:37 root Exp $ # Configuration for pam_ldap # # Modified for MS Active Directory # Active directory servers host 192.168.0.1 # Search base base DC=mydomain,DC=com # LDAP version 3 ldap_version 3 # Configure the CA Certificate file tls_cacert /etc/ssl/certs/ca-bundle.crt # Configure the CA Certificate directory tls_cacertdir /etc/ssl/certs # Use SASL for all authentications use_sasl on # SASL authorization ID sasl_auth_id nssldap/meatwad@MYDOMAIN.COM # Bind DN (this might not be needed at all?). # This should the the DN of the account you made # for your workstation. binddn CN=ldap,CN=Users,DC=mydomain,DC=com bindpw <secret> # Search scope scope sub # Break of the connection after one hour of idle time idle_timelimit 3600 pam_filter objectclass=user pam_login_attribute sAMAccountName pam_password ad # Bases for the searches. These should be the OU's # you create the user accounts in. nss_base_passwd cn=Users,dc=mydomain,dc=com nss_base_shadow cn=Users,dc=mydomain,dc=com nss_base_group cn=Users,dc=mydomain,dc=com nss_map_objectclass posixGroup Group nss_map_attribute cn sAMAccountName # SSL enabled ssl start_tls ------------------------------------------------------------------ And here is my /etc/krb5.conf ------------------------------------------------------------------ [logging] default = FILE:/var/log/krb5libs.log kdc = FILE:/var/log/krb5kdc.log admin_server = FILE:/var/log/kadmind.log [libdefaults] ticket_lifetime = 24000 default_realm = MYDOMAIN.COM dns_lookup_realm = false dns_lookup_kdc = false [realms] MYDOMAIN.COM = { kdc = ad.mydomain.com:88 admin_server = ad.mydomain.com:464 } [domain_realm] ..mydomain.com = MYDOMAIN.COM mydomain.com = MYDOMAIN.COM [kdc] profile = /var/kerberos/krb5kdc/kdc.conf [appdefaults] pam = { debug = false ticket_lifetime = 36000 renew_lifetime = 36000 forwardable = true krb4_convert = false } -------------------------------------------------------------- The only thing that isn't working is the SASL/GSSAPI authentication. I am able to bind to and search the AD LDAP directory using simple binding, but I keep getting the local config error whenever I try using SASL/GSSAPI. Using kinit, I am able to successfully obtain a Kerberos 5 ticket. I have also imported the keytab from the AD server (using ktpass on the AD server), and doing at 'ktutil list', it shows the machine's principal in the keytab. For the life of me I can't figure out what is going on with this issue. I have not been able to find any information on this issue. Any help will be GREATLY appreciated. Thanks, Mike Hilty |