Re: Change DNS servers on IBM i

[Bradley Stone <bvstone@xxxxxxxxx>]

Yes, it's instant.  I've been using Googles public DNS servers for years
now with zero issues ever.

I have used them for customers too who for some reason have them pointing
to old in house NT servers from the 20th century or something.  What?  You
can't ping Google.com and get a IP resolution?  Or you can only because you
added a host table entry?  *facepalm*

I don't see why anyone would use in house DNS (except for possible Intranet
things).  Just one less thing to worry about.

But, I'm sure there's a reason.  :)

Good tip, Rob.

Bradley V. Stone
www.bvstools.com
MAILTOOL Benefit #16 <https://www.bvstools.com/mailtool.html>: No external
"helper" PC system required. 100% IBM i native!

On Wed, Aug 30, 2017 at 2:13 PM, Rob Berendt <rob@xxxxxxxxx> wrote:

> Want to test your dns servers even before you change to them?  No problem.
>
> First, you have to have the following on your system:
> 5770SS1   31       5050    Domain Name System
>
>
> NSLOOKUP HOSTNAME(nra.org) DMNNAMSVR('8.8.8.8')
>
> Now just replace nra.org with some piece of equipment that should be found
> on your new dns at the address you enter at DMNNAMSVR.
>
> Now, we only put
> 5770SS1   31       5050    Domain Name System
> on our "hosting" lpars because if you start the DNS server (which we
> don't) on your IBM i you will fail any audit because the binds are ALWAYS
> obsolete.  Well there is a stream file you can hack to indicate you're
> running a higher bind than you are.
> I opened up a ticket with IBM to update the bind level.  They refuse
> except at new releases of IBM i.  Their arguement is that they fix any
> CVE's discovered with PTF's but leave it at the old bind.  I told them
> that was nice but I still fail the audit.
> And the audit is done by IBM.
>
> Rob Berendt
> --
> IBM Certified System Administrator - IBM i 6.1
> Group Dekko
> Dept 1600
> Mail to:  2505 Dekko Drive
>           Garrett, IN 46738
> Ship to:  Dock 108
>           6928N 400E
>           Kendallville, IN 46755
> http://www.dekko.com
>
>
>
>
>
> From:   Jeff Crosby <jlcrosby@xxxxxxxxxxxxxxxx>
> To:     Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
> Date:   08/30/2017 02:46 PM
> Subject:        Change DNS servers on IBM i
> Sent by:        "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>
>
>
>
> All,
>
> If I change the DNS servers on my IBM i via CHGTCPDMN and leave the old
> DNS
> servers running tonight, will:
>
> 1) My IBM i continue to send emails for now, then
> 2) enter restricted state at 3am for BRMS backup, and
> 3) when restarting after the restricted state backup, be using the new DNS
> servers
>
> Thanks.
>
>
> --
>
>
> Jeff Crosby
> VP Information Systems
> UniPro FoodService/Dilgard
> P.O. Box 13369
> Ft. Wayne, IN 46868-3369
> 260-422-7531
> www.dilgardfoods.com
>
> The opinions expressed are my own and not necessarily the opinion of my
> company.  Unless I say so.
> --
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