name_query failed to find name!!!!

UNIX2002

[globle]
workgroup = 0006
server string = samba server
netbios name = linuxserver
security = user
password level = 8
guest account = pcguest
logfile = /var/log/samba/%m.log
host allow = 192.168.0. 127.
dns proxy = no
[homes]
comment = home directory
browseable = no
writable = yes
create mode = 0664
directory mode = 0775

运行#nmblookup linuxserver
name_query failed to find name
#nmbd -n linuxserver
#nmblookup linuxserver
name_query failed to find name
为何？
请高手指点。