[Samba] Name lookup failure - NetBIOS lookup administratively
angus.monro at s4b.com.au
Thu Jan 27 06:49:34 GMT 2005
I’m a Samba newbie trying to set-up a test system with a Redhat samba server
and a WinXP laptop. As much as I’ve worked throught the troubleshooting
guide and setup info in the Samba HOWTO, I’m not winning. I’ll describe my
setup first, then my symptoms along with what I’ve found when I’ve tried to
The Redhat and the WinXP boxes are communicating via a wireless router, with
the Redhat having a physical connection to the router and the WinXP having a
wireless connection via WEP. Firewalls are disabled. DHCP is the order of
The Redhat’s smb.conf is
workgroup = s4b
netbios name = s4bServer
security = SHARE
hosts allow = 192.168.0. 127.
path = /shareds4b
comment = testfiles
read only = Yes
guest ok = Yes
guest only = Yes
/shareds4b exists and has 0777 permissions.
The Redhat’s IP is 192.168.0.132.
The WinXP is configured with workgroup s4b.
Its IP is 192.168.0.122. Its name is ‘S4B-2-TOSHIBA’
The router has IP 192.168.0.1.
The units can ‘see’ each other when I use IP addresses, but names are not
On the Redhat box
I eventually got smbclient –L s4bServer to work by explicitly putting
s4bserver in my /etc/hosts, so it works now.
BUT it doesn’t list the WinXP box under the SERVER heading (although I can
ping the WinXP box by IP address)
Doing nmblookup –B S4B-2-TOSHIBA ‘*’ fails to print the laptop’s ip
Doing nmblookup –B 192.168.0.122 ‘*’ fails, saying “name_query failed to
find name *”.
On the WinXP box
s4bServer isn’t appearing in My Network Places. If I try to add it
explicitly via Add a Network Place, s4bServer is indeed appearing under the
s4b workgroup (that’s one good thing!), but no share folders are being
listed under it.
Doing net use e: \\s4bServer\share1 complains “The network name cannot be
If I run ethereal on the Redhat box and do a ping s4bServer on the WinXP
box, ethereal shows that the Redhat is indeed picking-up the NetBIOS NBNS
broadcast message, but is responding with ICMP Type 3 Code 10 (“Host
OK, I can see that there’s some sort of name lookup problem going on here;
but I’m surprised by the ICMP response, since I thought that nmbd’s purpose
in life was to respond correctly to these messages. What have I missed?
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