samba - Sep 2003 - IP address restrictions and multiple interfaces

Using Samba (2nd edition) discusses using the "interfaces" network 
configuration option, along with "hosts allow", "hosts
deny", etc, to
provide support of multiple interfaces.  The examples cited only discuss the 
scenario in which the interfaces are on different subnets.

What about the case in which the interfaces of a multi-homed systems are on 
the same subnet?  Can Samba work in this configuration?  The book 
Understanding CIFS by Chris Hertel talks about NetBIOS name conflicts in 
this scenario (same name mapping to multiple IP addresses).

Thanks.

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Hi, Joseph Belesi,

23. September 2003 you wrote:

JB> Using Samba (2nd edition) discusses using the "interfaces"
network
JB> configuration option, along with "hosts allow", "hosts
deny", etc, to
JB> provide support of multiple interfaces.  The examples cited only discuss
the
JB> scenario in which the interfaces are on different subnets.

JB> What about the case in which the interfaces of a multi-homed systems are
on
JB> the same subnet?  Can Samba work in this configuration?  The book 
JB> Understanding CIFS by Chris Hertel talks about NetBIOS name conflicts in
JB> this scenario (same name mapping to multiple IP addresses).

Read the thread "Multiple NICs" from earlier today.
I just changed my smb.conf at my customer?s site to use 2 NICs.

Just leave the interfaces-option away and it will use all NICs except
127.0.0.1.

For "hosts allow" use something like:

hosts allow = 192.168.16.

to just let in the local C-class-hosts. (Note the trailing dot)

I?m right now monitoring the log.?mbd-files on that host and it works
like a charm.

You can verify the usage of both (or all) NICs via

"smbclient -L sambaserver"

it will list the used interfaces first. And you will hopefully notice
the increased performance ;-)

best regards,
Stefan G. Weichinger
mailto:monitor@oops.co.at

Joseph Belesi schrieb:
> Using Samba (2nd edition) discusses using the "interfaces"
network
> configuration option, along with "hosts allow", "hosts
deny", etc, to
> provide support of multiple interfaces.  The examples cited only discuss 
> the scenario in which the interfaces are on different subnets.
interfaces belongs to the interfaces on your server. (similar meaning of 
"ip address of the network card")
hosts allow and hosts deny belongs to the client interfaces...
also look at "bind interfaces only".
> 
> What about the case in which the interfaces of a multi-homed systems are 
> on the same subnet?  Can Samba work in this configuration?  The book 
> Understanding CIFS by Chris Hertel talks about NetBIOS name conflicts in 
> this scenario (same name mapping to multiple IP addresses).
we're working on a network with more than one ip address in the same 
segment, additionally our machines (even the clients) have more than one 
ip address in different segments. (this is nessecary because of costumer 
wks's)

e.g.
server has X.X.10.1 (eth0) X.X.10.254 (eth0:1) and X.X.30.1 (eth0:2)
the notebook has X.X.10.198(lan) X.X.30.198(wireless)

the configuration in this case means (the whole ..10 and ..30 has access)

interfaces = X.X.10.1 X.X.30.1
hosts allow = X.X.10 X.X.30
bind interfaces only = yes ##attention - no answer on localhost...

we're using only a nameserver. the nameserver has configured forward and 
reverse lookup zones.
we have no problems with samba 2.2.8a

i'm doing hard to understand your question exact, so i hope i'd gave u 
the right answer.

gk
> 
> Thanks.
> 
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