Backup Central

Hello,

Our amanda server has 2 NICs in it, each with separate IPs. We're running 2.4.22 kernel, RedHat 9, Amanda 2.4.4p1.

We'd like to back up a particular machine over the second NIC exclusively; is there a way to do that? We want our 1 NIC to be dedicated for NFS, and the other NIC to be dedicated for Amanda traffic.

Both NICs on the server are on the same subnet, and the IP of our client systems are on that subnet as well.

Any hints, suggestions, or "point me at some docs" are appreciated.

Thanks!

-Rob

On Wed, 2004-06-02 at 11:35, Dege, Robert C. wrote:

We'd like to back up a particular machine over the second NIC exclusively; is there a way to do that? We want our 1 NIC to be dedicated for NFS, and the other NIC to be dedicated for Amanda traffic.

Both NICs on the server are on the same subnet, and the IP of our client systems are on that subnet as well.

Any hints, suggestions, or "point me at some docs" are appreciated.

Amanda just asks the system for a connection to IP <a.b.c.d>, and the
system sets it up over the shortest path in the routing table. And since
both NICs are on the same network, it's going to use the first one
listed in the routing table (and so will NFS).

I'd set up another network using private addresses for the amanda NIC,
with secondary IPs on the clients, and change the config files to the
new net. Then the best entry in the routing table to get to that net
would be your amanda NIX.

--
Glenn English <ghe < at > slsware.com>

Thank you all for the prompt replies. I was hoping that this would be a simple task of telling amanda what interface to communicate on. But because I have 2 interfaces on the same subnet, this forces me to alter how the system itself routes data using the 2 interfaces.

Right now, the system is currently in use by the company, so I can't start futzing with the networking on the machine. Instead, I'm going to keep this on the back-burner for a later time.

-Rob

-----Original Message-----
From: Nicki Messerschmidt, Linksystem Muenchen GmbH
[mailto:amanda-users < at > alienn.net]
Sent: Thursday, June 03, 2004 4:59 AM
To: Dege, Robert C.
Cc: amanda-users < at > amanda.org
Subject: Re: Multiple NICs


Dege, Robert C. said the following:
Our amanda server has 2 NICs in it, each with separate IPs. We're
running 2.4.22 kernel, RedHat 9, Amanda 2.4.4p1.
We'd like to back up a particular machine over the second NIC
exclusively; is there a way to do that? We want our 1 NIC to be
dedicated for NFS, and the other NIC to be dedicated for Amanda
traffic.
Both NICs on the server are on the same subnet, and the IP of our
client systems are on that subnet as well.
Any hints, suggestions, or "point me at some docs" are appreciated.

How about setting a host route via the one seperate
interface? Otherwise
there could be a possibility setting an extended route vi the
"ip route"
command (source routing).


Cheers
Nicki

--
Linksystem Muenchen GmbH info < at > link-m.de
Schloerstrasse 10 http://www.link-m.de
80634 Muenchen Tel. 089 / 890 518-0
We make the Net work. Fax 089 / 890 518-77
PGP Keys: https://www.link-m.de/pgp/

On Friday 04 June 2004 13:54, Dege, Robert C. wrote:
Thank you all for the prompt replies. I was hoping that this would
be a simple task of telling amanda what interface to communicate
on. But because I have 2 interfaces on the same subnet, this
forces me to alter how the system itself routes data using the 2
interfaces.

Right now, the system is currently in use by the company, so I can't
start futzing with the networking on the machine. Instead, I'm
going to keep this on the back-burner for a later time.

-Rob

Humm, a 'service network restart' only takes a couple of seconds per
NIC, and you should always make a backup of any file you modify
before you modify it just so the recovery is as simple as mv'ing the
original back, and doing a restart. Theres a fair chance nobody will
notice unless you have to resort to the recover and restart.

-----Original Message-----
From: Nicki Messerschmidt, Linksystem Muenchen GmbH
[mailto:amanda-users < at > alienn.net]
Sent: Thursday, June 03, 2004 4:59 AM
To: Dege, Robert C.
Cc: amanda-users < at > amanda.org
Subject: Re: Multiple NICs

Dege, Robert C. said the following:
Our amanda server has 2 NICs in it, each with separate IPs.
We're running 2.4.22 kernel, RedHat 9, Amanda 2.4.4p1.
We'd like to back up a particular machine over the second NIC
exclusively; is there a way to do that? We want our 1 NIC to be
dedicated for NFS, and the other NIC to be dedicated for Amanda
traffic.
Both NICs on the server are on the same subnet, and the IP of
our client systems are on that subnet as well.
Any hints, suggestions, or "point me at some docs" are
appreciated.

How about setting a host route via the one seperate
interface? Otherwise
there could be a possibility setting an extended route vi the
"ip route"
command (source routing).


Cheers
Nicki

--
Linksystem Muenchen GmbH info < at > link-m.de
Schloerstrasse 10 http://www.link-m.de
80634 Muenchen Tel. 089 / 890 518-0
We make the Net work. Fax 089 / 890 518-77
PGP Keys: https://www.link-m.de/pgp/

--
Cheers, Gene
"There are four boxes to be used in defense of liberty:
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Copyright 2004 by Maurice Eugene Heskett, all rights reserved.