Ubuntu: 12.04 x64

PBIS: Linux 2.4/2.6 kernel 64-bit DEB (from BeyondTrust website)

Samba: 3.6.3 (from Ubuntu repo)

We are having problems getting samba to integrate with PowerBroker (aka PBIS/LikeWise-Open). We followed these instructions:

https://help.ubuntu.com/12.04/serverguide/samba-ad-integration.html

PBIS is working. Users are able to SSH and TELNET into the machine and login using AD credentials. However, we cannot get SAMBA to authenticate against the AD. Here is the log output:

[2013/05/31 09:36:38.385857,  0] rpc_client/cli_pipe_schannel.c:54(get_schannel_session_key_common)

  get_schannel_session_key: could not fetch trust account password for domain 'EXAMPLE'

[2013/05/31 09:36:38.386170,  0] rpc_client/cli_pipe_schannel.c:184(cli_rpc_pipe_open_schannel)

  cli_rpc_pipe_open_schannel: failed to get schannel session key from server DC2.EXAMPLE.COM for domain EXAMPLE.

[2013/05/31 09:36:38.386228,  0] auth/auth_domain.c:193(connect_to_domain_password_server)

  connect_to_domain_password_server: unable to open the domain client session to machine DC2.EXAMPLE.COM. Error was : NT_STATUS_CANT_ACCESS_DOMAIN_INFO.

[2013/05/31 09:36:38.388088,  0] rpc_client/cli_pipe_schannel.c:54(get_schannel_session_key_common)

  get_schannel_session_key: could not fetch trust account password for domain 'EXAMPLE'

[2013/05/31 09:36:38.388378,  0] rpc_client/cli_pipe_schannel.c:184(cli_rpc_pipe_open_schannel)

  cli_rpc_pipe_open_schannel: failed to get schannel session key from server DC2.EXAMPLE.COM for domain EXAMPLE.

[2013/05/31 09:36:38.388435,  0] auth/auth_domain.c:193(connect_to_domain_password_server)

  connect_to_domain_password_server: unable to open the domain client session to machine DC2.EXAMPLE.COM. Error was : NT_STATUS_CANT_ACCESS_DOMAIN_INFO.

[2013/05/31 09:36:38.390201,  0] rpc_client/cli_pipe_schannel.c:54(get_schannel_session_key_common)

  get_schannel_session_key: could not fetch trust account password for domain 'EXAMPLE'

[2013/05/31 09:36:38.390491,  0] rpc_client/cli_pipe_schannel.c:184(cli_rpc_pipe_open_schannel)

  cli_rpc_pipe_open_schannel: failed to get schannel session key from server DC2.EXAMPLE.COM for domain EXAMPLE.

[2013/05/31 09:36:38.390549,  0] auth/auth_domain.c:193(connect_to_domain_password_server)

  connect_to_domain_password_server: unable to open the domain client session to machine DC2.EXAMPLE.COM. Error was : NT_STATUS_CANT_ACCESS_DOMAIN_INFO.

[2013/05/31 09:36:38.390831,  0] auth/auth_domain.c:292(domain_client_validate)

domain_client_validate: Domain password server not available.

Anyone have any ideas where to begin?