>[global]
>workgroup = MAIN
>server string = Samba Server
>security = user
>hosts allow = 101.18.6. 101.18.3. 127.

Добавть в hosts allow 127.0.0.1

>log file = /usr/local/samba/var/log.%m
>socket options = TCP_NODELAY

смени на(у меня на серваке стоит так):
ocket options  = SO_KEEPALIVE SO_REUSEADDR SO_BROADCAST TCP_NODELAY IPTOS_LOWDELAY IPTOS_THROUGHPUT SO_SNDBUF=50000 SO_RCVBUF=50000

>
>; 101.18.1.6 - реальный IP, остальные алиасы
>interfaces = 101.18.1.6/24 101.18.3.251/24 101.18.6.251/24
Добавь в  interfaces 127.0.0.1

>
>local master = yes
>;   remote annaunce = 101.18.3.16
>   remote browse sync = 101.18.3.16 101.18.6.255
>os level = 255
>domain master = yes
>preferred master = yes
>domain logons = yes
>add machine script = /usr/local/samba/bin/addPC %u