Вот пример рабочего файла /etc/samba/smb.conf
[global]
workgroup = WORKGROUP
netbios name = ASTERSERVER
server string = %h (Ubuntu, Server)
enable privileges = yes
interfaces = lo,eth0
bind interfaces only = yes
loglevel = 1
syslog = 0
log file = /var/log/samba/samba.log
max log size = 50
wins support = yes
smb ports = 137 138 139 445
name resolve order = wins bcast hosts
time server = yes
dns proxy = yes
map to guest = Bad User
[FILESERVER]
browseable = yes
guest ok = yes
guest only = yes
path = /home/samba/fileserver
comment = Shared Files
Думаю, не надо объяснять, что надо ставить самбу и как это делать?