Gönderim Listesi ecs-isp@2rosenthals.com Arşvli İleti #112

Gönderen: "Paul Smedley" <ecs-isp@2rosenthals.com> Tam Başlıklar
Çözülmemiş İleti
Konu: Re: [eCS-ISP] [BULK] [eCS-ISP] Bind 9.11.20
Tarih: Wed, 15 Jul 2020 09:48:41 +0930
Alacak: eCS ISP Mailing List <ecs-isp@2rosenthals.com>

Hi Dan,

Sorry for confusing you relating to IPV6..

The ipv6 support I'm referring to relates to code that allows the daemon to listen/bind to an ipv6 address. Clearly this cannot work on OS/2 as our tcpip stack is only ipv4.

Nothing prevents the daemon on OS/2 returning an ipv6 address - although of course any ipv6 clients need to be requesting those addresses from an ipv4 daemon, so you couldn't use it in a pure ipv6 environment.

Hope this makes sense..

Cheers,

Paul

On 15/7/20 9:18 am, Dan Napier wrote:
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 <mailto: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
    <http://www.2rosenthals.com>
    visit my IT blog www.2rosenthals.net/wordpress
    <http://www.2rosenthals.net/wordpress>
    -------------------------------------------------------------


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-- Cheers,

Paul

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