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Date:      Wed, 30 Aug 2000 14:14:20 -0500 (CDT)
From:      BWS - Offwhite <brennan@offwhite.net>
To:        freebsd-questions@FreeBSD.ORG
Subject:   3 NICs in 1 server
Message-ID:  <Pine.BSF.4.21.0008301355470.44358-100000@home.offwhite.net>

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I need to get 3 NICs running at once and the networking logic escapes me.

I basically need to link a database server directly to the web
server.  The database server it a dual PIII with a RAID drive and it will
act as the all powerful database.  It is running mysql.

In it (A Dell PowerEdge 2450) there is one onboard NIC and card which is a
dual port NIC.  So I have 3 NICs.  They are running under the fxp device
as fxp0, fxp1, fxp2.  I can set up them up to work just fine and here is
what I have set.

fxp0 is 192.168.1.10
fxp1 is 192.168.1.11
fxp2 is 192.168.1.12

I have the gateway all set and I can ping inside the private network.  I
also happen to have natd set up on the gateway to route public traffic to
these addresses in case I want to download source or pull files from a
remote server.

Where I get confused is when I try to connect to another machine.  I will
have a perl DBI script talking to the datbase server and the client
machine will have a very similar setup. It will have the same dual NIC
card in it running on another set of addresses.

fxp0 is 192.168.1.20
fxp1 is 192.168.1.21

So if there is a cross-over cable going from fxp0 to fxp0, logically .10
to .20, will the mysql client be able to connect?  I am not sure how I can
can tell the DBI to use a specific interface or how to tell mysql to
listen on multiple addresses.  Before I determine that I need to know if
this way of networking will work.

Is anyone else currently linking a database server directly to a web
server or other box?  If so, could you give me some tips?

Brennan Stehling - web developer and sys admin
projects: www.greasydaemon.com | www.onmilwaukee.com | www.sncalumni.com



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