Windows 7 无法加入Linux Samba PDC的解决方法
1、确定Samba的版本，支持win7的版本如下：

Samba 3.4 or later
Samba 3.3.5 or later
Samba 3.3.2, 3.3.3 and 3.3.4 (with NOTES)
Samba 3.2.12 or later2、修改Windows 7 注册表
HKLM\System\CCS\Services\LanmanWorkstation\Parameters
            DWORD  DomainCompatibilityMode = 1
            DWORD  DNSNameResolutionRequired = 0
3、如果是Samba 3.3.2/3.3.3/3.3.4，将以下两个注册表键值设为"0"，其他版本设为"1”
HKLM\System\CCS\Services\Netlogon\Parameters
           DWORD  RequireSignOrSeal = 0
           DWORD  RequireStrongKey = 0