[Samba] name query returning all ip addresses for server instead of
primary one
Antony Sargent
antony at asargent.com
Fri Feb 9 18:49:47 GMT 2007
Our server is multihomed, and I've been finding that sometimes clients
doing a NetBIOS Name Service (NBNS) query to our samba server sometimes
end up getting and using one of the non-primary addresses. I used
ethereal to look at the actual NBNS response from the server and notice
that all of its ip addresses are listed, with the primary one first but
all the others as well. I guess the client somehow picks randomly among
them? Clients picking the wrong one seems to happen particularly often
on vpn connections via the pptpd server running on the same machine.
I've perused the samba o'reilly book, online documentation, and the
mailing list archives, and I had thought that the "interfaces" and "bind
interfaces only" commands in smb.conf should restrict the samba server
to only vending the ip address of the primary interface eth0, but that
doesn't seem to work. Does anyone know how to get samba to only reply
with one of its ip addresses to NBNS queries?
Thanks!
Antony
System info:
CentOS 4, Linux 2.6.9-42.0.3.ELsmp
Samba rpm's installed:
samba-common-3.0.10-1.4E.9
samba-3.0.10-1.4E.9
Here is our smb.conf:
(I've changed the actual server name changed to "servername", and
workgroup changed to "serverworkgroup")
[global]
netbios name = servername
server string =
workgroup = serverworkgroup
encrypt passwords = yes
domain master = yes
local master = yes
preferred master = yes
os level = 33
security = user
domain logons = yes
# We set these to empty so that we don't use roaming profiles
logon path =
logon home =
time server = yes
admin users = root
wins support = yes
# only bind to the loopback and first ethernet interfaces
interfaces = lo eth0
bind interfaces only = yes
socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
[home]
path = /home/
veto files = /lost+found/
writeable = yes
browseable = yes
guest ok = no
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