Patches to head (become_root and some RPC stuff)

[Luke Kenneth Casson Leighton]

> I don't know LDAP, so please, could you tell me how the LDAP server is
> secured, because that is the key to what smbd is doing wrong.
>

the ldap server should be run on loopback or over an sshd-proxy to the
ldap server.  in either case, the connection from samba should be to
127.0.0.1