Answers below.
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-----Original Message-----
From: Michael Stowe [mailto:mst...@chicago.us.mensa.org]
Sent: Thursday, March 18, 2010 12:04 PM
To: dwilli...@dtw-consulting.com; General list for user discussion,
questions and support
Subject: Re: [BackupPC-users] Communicating with a windows laptop on my
workgroup
> I posted this to a Linux forum but also wanted to post it here since this
> is also relates to backuppc.
Only peripherally, in the sense that if you're using smb and smb doesn't
work, backuppc won't work.
> I did post something a while back and some mentioned about modifying
> Samba so that it became a local master. Anyway, I
> made the changes to my smb.conf file with the following:
>
> local master = yes
> preferred master = yes
> wins support = yes
>
> That said, I still cannot seem to perform a nmblookup on a windows laptop
> that is connected to my network that has a dynamic IP address L
I'm not entirely sure why you'd want to use NMB rather than DNS; then
again, I don't recommend SMB since rsync is available.
I am by no means an expert in this area at all, and I am open to looking at
other options. I know that I had the smb method working a while back on a
fixed IP address windows machine. The last time I posted on here with this
issue, albeit with less information, I was asked to make the changes to
Samba that I indicated above. I don't pretend to always understand the ins
and outs, just as long as I can get it working J
> I have just noticed something in my syslog, which I believe is related to
> a change in my Samba setup. I am using Backuppc to perform backups on my
> linux server and I was (and still am) having a problem in that I wasn't
> able to back up any machine that had a dynamic IP address, namely my
> laptop.
Does it actually resolve via DNS?
This is a home network so to be honest, I wouldn't even know how to go about
testing this. My laptop is associate to a Workgroup and my Linux server has
a static IP address within the 192.168.15.x range. I can ping the laptop by
ip address but I am not sure what it's normal address would be. For
example, would it be laptop1.workgroup.com ?
> It
> seems that nmblookup will not resolve the ip address from any machines on
> my
> network. Really not sure what the problem is since I have very little
> experience with this. Also, I don't remember what change I made to the
> samba configuration (I had a look but nothing jumped out) other than it
> had to do with enforcing Samba to act as a Domain Master if that makes
> sense.
No, it doesn't make sense. What you want (and need) is a master browser,
which (on a workgroup, not a Windows domain) is elected from computers on
the segment. N.B.: if you're not on the same segment and don't have a
domain controller, you can't browse or use nmblookup.
> The errors I am getting in my syslog are as follows:
> nmbd[4123]: find_domain_master_name_query_fail:
> nmbd[4123]: Unable to find the Domain Master Browser name XXXXXX<1b> for
> the workgroup XXXXX.
> nmbd[4123]: Unable to sync browse lists in this workgroup.
That's normal. The local master browser is looking for a domain master
browser. Which you apparently don't have. This is indicating that for
whatever reason, samba is not functioning as the LMB. There may be better
clues when it starts up, since typically that's when the elections are
held.
In your log.nmbd, you should see this sort of thing:
become_domain_master_browser_bcast:
Attempting to become domain master browser on workgroup XXXXX on subnet
10.168.0.1
If you're not seeing this, then something's funny with your smb.conf.
After a restart to Samba here's what's in my log:
[2010/03/18 13:06:58, 0]
nmbd/nmbd_become_lmb.c:395(become_local_master_stage2)
*****
Samba name server LINUXPC is now a local master browser for workgroup
WORKGROUP on subnet 192.168.15.2
*****
[2010/03/18 13:06:58, 0]
nmbd/nmbd_browsesync.c:350(find_domain_master_name_query_fail)
find_domain_master_name_query_fail:
Unable to find the Domain Master Browser name WORKGROUP<1b> for the
workgroup WORKGROUP.
Unable to sync browse lists in this workgroup.
> I'd really appreciate any help that would allow me to be able to use
> nmblookup (which is what backuppc uses to resolve client names to an IP
> address) and work out just what I did to samba.
Can you actually browse any windows shares at all?
I'm not at my Linux box right now, but I'm pretty sure that I can. For
example, from my laptop I can browse the Samba shares that I setup on the
Linux box.
> If I try and do a nmblookup for a client I get the following error
> message:
> nmblookup laptop1
> querying laptop1 on 192.168.15.255
> name_query failed to find name laptop1
Without a local master browser, this is to be expected. It's roughly
equivalent to doing an nslookup without a DNS server.
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