Problem with multi-homing
bobvance at alumni.caltech.edu
bobvance at alumni.caltech.edu
Fri May 5 19:06:15 UTC 2000
How 'bout this:
Have the clients configured to request POP from a port specific to each
system, say 1110 and 1111, and have the firewall map the requested port
to 110 on the proper DMZ server.
-----------------------------------------------
Tks | BVance at sbm.com
BV | BobVance at alumni.caltech.edu
Sr. Tech. Consultant, SBM
Vox 770-623-3430 11455 Lakefield Dr.
Fax 770-623-3429 Duluth, GA 30097-1511
===============================================
-----Original Message-----
From: news at reader1.fr.uu.net [mailto:news at reader1.fr.uu.net]On Behalf Of
Thierry
Sent: Thursday, May 04, 2000 8:58 AM
To: comp-protocols-dns-bind at moderators.isc.org
Subject: Problem with multi-homing
I have a firewall (RH 6.2) with 3 NICs:
- one permanent connection to the Internet (A.B.C.237)
- one for DMZ (10.1.1.0)
- one for private LAN
Primary DNS & Mail server is on the DMZ and on the same server (running
RedHat 6.2 at 10.1.1.10)
Secondary DNS & Web server is on the same server (running NT 4 at 10.1.1.11)
Although these 2 servers have private IP addresses (10.1.1.10 and
10.1.1.11), I'm using IPMASQ on the firewall to redirect packets to those
servers. This works perfectly when pinging A.B.C.225 and A.B.C.226.
For virtual-hosting mail on RH6.2 (10.1.1.10), I'm using vpop and multiple
private IP addresses using "ifconfig eth0:x" on 1 NIC.
For virtual-hosting ftp on NT4 (10.1.1.11), I'm binding multiple private IP
addresses on 1 NIC.
Now, my question:
how (from the Internet) can I access the server mail.domain1.com (declared
at 10.1.1.50 in my DNS) or mail.domain2.com (declared at 10.1.1.51) without
having an official IP address for each virtual server ?
Thanks,
Thierry.
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