Hi Per, It appears not yet: https://gitlab.isc.org/isc-projects/kea/-/issues/3286
You can configure a percentage which was implemented in #225: https://gitlab.isc.org/isc-projects/kea/-/issues/225 Documentation is found here: https://kea.readthedocs.io/en/kea-2.4.1/arm/dhcp4-srv.html#ddns-for-dhcpv4 where it says: "The parameter ddns-ttl-percent, when specified, causes the TTL to be calculated as a simple percentage of the lease's lifetime, using the parameter's value as the percentage. It is specified as a decimal percent (e.g. .25, .75, 1.00) and may be specified at the global, shared-network, and subnet levels. By default it is unspecified." There isn't an example, but it would be specified like this: `"ddns-ttl-percent": .75` for example. Thank you, Darren Ankney On Thu, Sep 26, 2024 at 8:01 AM Per Weisteen via Kea-users <kea-users@lists.isc.org> wrote: > > Hi > > Was this feature of setting DNS TTL to a specific value ever impemented? > Can't seem to find any mention in the docs - I've discovered a setting called > ddns-ttl-percent but can't find any description on how to use it. > > ./PerW > > > -----Original Message----- > > From: Kea-users <kea-users-boun...@lists.isc.org> On Behalf Of Weisteen Per > > Sent: torsdag 23. mars 2023 10:29 > > To: kea-users@lists.isc.org > > Subject: Re: [Kea-users] Lease time and DNS TTL (OPEN) > > > > That feature would be most welcome 😊. > > > > ./PerW > > > > > > Sensitivity: Internal > > > > > -----Original Message----- > > > From: Kea-users <kea-users-boun...@lists.isc.org> On Behalf Of Darren > > > Ankney > > > Sent: onsdag 22. mars 2023 10:52 > > > To: kea-users@lists.isc.org > > > Subject: Re: [Kea-users] Lease time and DNS TTL (OPEN) > > > > > > Not yet but there is an issue open for such a configuration option: > > > https://gitlab.isc.org/isc-projects/kea/-/issues/225 > > > > > > On Wed, Mar 22, 2023 at 3:43 AM Weisteen Per <per.weist...@telenor.no> > > > wrote: > > > > > > > > Hi > > > > > > > > I'm using DDNS for updating both forward and reverse zones. > > > > According to > > > the docs the TTL value is calculated based on RFC 4702, which suggests > > > that the TTL value be 1/3 of the lease's lifetime, with a minimum > > > value of 10 minutes. > > > > > > > > The clients (IP-cameras) involved will normally have long leases > > > > like one day > > > or even one week, but due to reasons which I'm not going to delve > > > into, clients may occasionally be assigned another address in another > > > IP-range. > > > When this occurs the old DNS record may still be cached with a rather > > > long TTL which makes accessing the client for reconfiguration purposes > > > problematic. > > > > > > > > Is it possible to override the DNS TTL value within KEA? > > > > > > > > ./PerW > > > > > > > > > > > > Sensitivity: Internal > > > > -- > > > > ISC funds the development of this software with paid support > > > subscriptions. Contact us at https://www.isc.org/contact/ for more > > > information. > > > > > > > > To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users. > > > > > > > > Kea-users mailing list > > > > Kea-users@lists.isc.org > > > > https://lists.isc.org/mailman/listinfo/kea-users > > > -- > > > ISC funds the development of this software with paid support > > > subscriptions. > > > Contact us at https://www.isc.org/contact/ for more information. > > > > > > To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users. > > > > > > Kea-users mailing list > > > Kea-users@lists.isc.org > > > https://lists.isc.org/mailman/listinfo/kea-users > > -- > > ISC funds the development of this software with paid support subscriptions. > > Contact us at https://www.isc.org/contact/ for more information. > > > > To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users. > > > > Kea-users mailing list > > Kea-users@lists.isc.org > > https://lists.isc.org/mailman/listinfo/kea-users > > Sensitivity: Internal > -- > ISC funds the development of this software with paid support subscriptions. > Contact us at https://www.isc.org/contact/ for more information. > > To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users. > > Kea-users mailing list > Kea-users@lists.isc.org > https://lists.isc.org/mailman/listinfo/kea-users -- ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users. Kea-users mailing list Kea-users@lists.isc.org https://lists.isc.org/mailman/listinfo/kea-users
