[CentOS] Another samba problem

Sat Apr 19 16:12:17 UTC 2008
Anne Wilson <cannewilson at googlemail.com>

On Saturday 19 April 2008 16:51:42 Craig White wrote:
> On Sat, 2008-04-19 at 16:24 +0100, Anne Wilson wrote:
> > On Saturday 19 April 2008 16:05:09 Craig White wrote:
> > > On Sat, 2008-04-19 at 15:46 +0100, Anne Wilson wrote:
> > > > On Saturday 19 April 2008 14:40:36 Craig White wrote:
> > > > > On Sat, 2008-04-19 at 13:55 +0100, Anne Wilson wrote:
> > > > > > My server is CentOS with samba 3.0.25b.  One client box runs
> > > > > > Mandriva 2007.1 with samba 3.0.24.  I can see the client box from
> > > > > > the server, but the client box can't see the server.  It can see
> > > > > > the laptop on the same lan, though.
> > > > > >
> > > > > > Any suggestions as to what I could check?  I know Craig said
> > > > > > there had been some significant changes in recent versions.  Are
> > > > > > any of those changes likely to have an impact on this?
> > > > >
> > > > > ----
> > > > > are they on the same subnet?
> > > > >
> > > > > it almost sounds like firewall rules are in the way.
> > > > >
> > > > > Always check first from localhost and then from another machine...
> > > > >
> > > > > from localhost...
> > > > >
> > > > > smbclient -L localhost
> > > > > smbclient -L NETBIOSNAME # which is the hostname unless you set
> > > > > something
> > > > >                          # different in smb.conf
> > > > >
> > > > > then from another computer...
> > > > >
> > > > > smbclient -L IP_ADDRESS_OF_SYSTEM
> > > > > smbclient -L NETBIOSNAME
> > > > >
> > > > > if localhost & IP_ADDRESS_OF_SYSTEM work but NETBIOSNAME doesn't
> > > > > work, you've got a problem with name resolution.
> > > >
> > > > All four requested the user password, then returned a summary of the
> > > > shares. The LAN name is correct.  The client in question, though, is
> > > > names as master, which it shouldn't be.
> > >
> > > ----
> > > LAN NAME? what's a LAN NAME?
> >
> > OK - workgroup name, if you prefer it.
> >
> > > There's a WORKGROUP concept in samba...
> > >
> > > any machine on the subnet should give the same answer with the
> > > following command...
> > >
> > > nmblookup -M WORKGROUP # obviously substitute for the 'WORKGROUP'
> > > whatever name
> > >                        # you use for workgroup
> > >
> > > This is a live broadcast poll of the subnet and reply should come from
> > > the 'Browse Master' from the most recent 'election' - elections occur
> > > every 15 minutes by design.
> > >
> > > If you are getting different results from the same subnet on different
> > > machines then, as I suggested on the thread on fedora-list, make sure
> > > that all the Linux systems on the LAN set os level = 20 (the default)
> > > except for the one you want to be the master where it's set to os level
> > > = 65
> >
> > The laptop I'm working from and the client in question both return
> > exactly the same -
> >
> > nmblookup -M lydgate.lan
> > querying lydgate.lan on 192.168.0.255
> > 192.168.0.30 lydgate.lan<1d>
> >
> > The server has os level = 66 set.  The client doesn't have any setting at
> > all for os level so should be working at the default.  192.168.0.30 is
> > the badly behaved client, not the server.
>
> ----
> ok, just had another thought...
>
> on each machine that has nmb running...
>
> # cat /var/cache/samba/wins.dat
> on other distributions, the location of wins.dat will surely change
>
Neither the client in question nor this one have wins.dat, according to 
locate.

> the entire discussion of network browsing can be found here...
> http://samba.org/samba/docs/man/Samba-HOWTO-Collection/NetworkBrowsing.html
>
> and specific information on how to 'game' the various systems to
> influence the outcome of Network Browsing is here...
> http://samba.org/samba/docs/man/Samba-HOWTO-Collection/NetworkBrowsing.html
>#id2579338
>
I have to leave this for a couple of hours, but I'll read them when I get 
back.

Anne
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