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Paul

I just installed the 9.11 Porsche it does report ipv6 even in the OS2 command line The server is reporting ipv6 addresses, so I guess if the system is able to do with it it runs. So far I have not seen any 100 CPU usage. I will keep a close watch. Thanks for all your effort.

Dan

From: eCS ISP Mailing List [mailto:ecs-isp@2rosenthals.com]
Sent: Monday, July 13, 2020 3:02 PM
To: eCS ISP Mailing List <ecs-isp@2rosenthals.com>
Subject: Re: [eCS-ISP] [BULK] [eCS-ISP] Bind 9.11.20

Hi Dan and Lewis,

In addition to Lewis's comments - as I recall - newer bind versions don't provide the options of disabling ipv6 support - so we need to provide enough stubs of ipv6 headers to let it compile and work.

I did this for openvpn (which similarly doesn't give an option to disable ipv6) - but ironically, it was this added header support that was causing the 100% cpu usage with Bind 9.11.x.

For the above reasons, I focussed on maintaining 9.11.x as this is EOL December 2021 - which gives us plenty of time to come up with a solution for the next ESV version.

Cheers,

Paul

On Tue, 14 Jul 2020 at 02:05, Lewis G Rosenthal <ecs-isp@2rosenthals.com> wrote:

Hi, Dan...

On 07/13/20 12:01 pm, Dan Napier wrote:
> Hello Friends
>
> Did I miss something, I seem to be way ahead of the curve. Running 9.12.4 I am not a Math Major, so I might be wrong, but isn’t 9.11.20 a lower rev?
> 9.12.4 seems to run dandy, reports ip4 and ip6 addresses, does not hog cpu. Did I do something wrong?
>

As you will note here:

https://bind.isc.org/

9.11 is an ESV (Extended Service Release). 9.11.20 is indeed newer than 9.12.4.

BIND 9.12.4 was a maintenance release, specifically to address issues
disclosed in CVE-2018-5744, CVE-2018-5745, and CVE-2019-6465.

9.11.20, OTOH, addresses all security issues up through CVE-2020-8619:

https://gitlab.isc.org/isc-projects/bind9/-/blob/v9_11/README.md

Not every higher version number necessarily denotes a *newer* or more secure
one. 9.12 was a development branch; 9.11 is a stable one.

9.16 is current, and will eventually become an ESV (I believe), so at some
point, that should become our target.

GL HTH

--
Lewis
-------------------------------------------------------------
Lewis G Rosenthal, CNA, CLP, CLE, CWTS, EA
Rosenthal & Rosenthal, LLC www.2rosenthals.com
visit my IT blog www.2rosenthals.net/wordpress
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Cheers,

Paul