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Today's Topics:
1. New security vulnerability announcement (CVE-2021-25217) and
releases of ISC DHCP (4.4.2-P1 and 4.1-ESV-R16-P1) (Michael McNally)
2. OMAPI Reservations and peer/failover (Gregory Sloop)
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Message: 1
Date: Wed, 26 May 2021 13:30:38 -0800
From: Michael McNally <mcna...@isc.org>
To: dhcp-users@lists.isc.org
Subject: New security vulnerability announcement (CVE-2021-25217) and
releases of ISC DHCP (4.4.2-P1 and 4.1-ESV-R16-P1)
Message-ID: <985c53ea-aa0c-542e-1831-5f3701f59...@isc.org>
Content-Type: text/plain; charset=utf-8; format=flowed
Hello dhcp-users subscribers -
It has been a long time since we last announced a security vulnerability
in ISC DHCP or since we published new releases of the software.
Our practice is to announce such events on the dhcp-announce list and
operate this list to host community discussion, but because of the length
of time since the last such announcements we believe it's quite conceivable
that there are subscribers here who are not subscribed to the announcement
list as well.
If you are such a person, we encourage you to subscribe to dhcp-announce
(it's VERY low traffic, the most recent messages before today were sent
in January 2020) but it is where we make important announcements about
the products.
Subscription can be accomplished via the list's main page:
https://lists.isc.org/mailman/listinfo/dhcp-announce
and if you missed today's messages you can find them in the list archives:
CVE-2021-25217 announcement:
https://lists.isc.org/pipermail/dhcp-announce/2021-May/000431.html
DHCP 4.4.2-P1 and 4.1-ESV-R16-P1 release announcement:
https://lists.isc.org/pipermail/dhcp-announce/2021-May/000432.html
Sincerely,
Michael McNally
Internet Systems Consortium
------------------------------
Message: 2
Date: Wed, 26 May 2021 15:04:04 -0700
From: Gregory Sloop <gr...@sloop.net>
To: Users of ISC DHCP <dhcp-users@lists.isc.org>
Subject: OMAPI Reservations and peer/failover
Message-ID: <654688848.20210526150...@sloop.net>
Content-Type: text/plain; charset="iso-8859-15"
I finally got around to attempting to set the reservation flag on some dhcp
leases using omapi.
(I'd asked about how to do this with OMAPI ages ago ... since I can do it live
and not have to stop the DHCP servers and hand edit the leases file.)
I'm running a pair of peers/failover/load-balance machines for dhcp.
So, I set the reserved flag on one server, but the leases file on the other
server doesn't see/reflect the reservation for that same lease.
(I see the lease on both machines, but there's no reservation on the second
server. The one I didn't target with the omapi connection/change.)
Do I have to run OMAPI against both servers?
(I guess I kind of thought since it's a change to the lease, it would get
communicated between the peers. That looks like a bad assumption.)
Can someone, (probably ISC) confirm the "right" way to do this?
TIA
-Greg
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