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...agreed, a terrible idea.

________________________________
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> on behalf of Joe Pluta <joepluta@xxxxxxxxxxxxxxxxx>
Sent: 30 March 2020 14:28
To: midrange-l@xxxxxxxxxxxxxxxxxx <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: Re: IBM IP Addresses / Ports

Wow. That seems awfully Draconian as it defeats the purpose of DNS
entirely.

Perhaps a better answer might be to use a machine in a DMZ to access
those services, especially since IBM (or anybody else) could change
their IP addresses at any time.


On 3/30/2020 7:16 AM, midrangel@xxxxxxxxxxxxxxxxx wrote:
A couple of my customers have put requirements it to lock down
inbound/outbound communications in their firewalls to only known addresses.
I've been asked for a list of IBM IPs and ports that need to be open.

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