Joining a Solaris system to a Windows Active Directory (AD)

This is a simple post providing instructions on how to join a Solaris™ based system to a Windows AD.

1. Create configuration file (/etc/samba/krb-samba.conf):

   root@sol11# cat >/etc/samba/krb-samba.conf <<_EOT_
   [global]
      workgroup = TEST
      password server = 10.10.1.101
      realm = ad.church1e.test
      security = ads
      kerberos method = system keytab
   _EOT_

2. Join the domain

   root@sol11# net ads join --configfile /etc/samba/krb-samba.conf -U mchurchi
   Enter mchurchi's password:
   Using short domain name -- TEST
   Joined 'sol11' to dns domain 'ad.church1e.test'
   No DNS domain configured for sol11. Unable to perform DNS Update.
   DNS update failed: NT_STATUS_INVALID_PARAMETER
   

   NOTE: The DNS error is normal and can safely be ignored.

Troubleshooting

If you receive the following error:

Failed to join domain: failed to lookup DC info for domain 'AD.CHURCH1E.TEST' over rpc: 
   The attempted logon is invalid. This is either due to a bad username or 
   authentication information.

Based on the Oracle Doc (Samba 'net ads join' Fails After Upgrade to Samba 4.4.x - Doc ID 2301495.1), we can simply add the following to the samba configuration file:

include system krb5 conf = no