Isn't this sort of dynamic functionality (real-time presence or absence of SRV records) what mDNS and the avahi daemon are for?
________________________________________ From: bind-users <bind-users-boun...@lists.isc.org> on behalf of Matus UHLAR - fantomas <uh...@fantomas.sk> Sent: Wednesday, January 6, 2021 8:51 AM To: bind-users@lists.isc.org Subject: Re: SRV Record Server Availability On 06.01.21 21:41, Wilfred Sarmiento via bind-users wrote: >Your understanding is correct, i just thought that SRV can detect whose >server is alive so it can choose and provide an answer with the available >Server. DNS is not designed to provide this functionality. While technically you can change contents of DNS depending on which servers are alive and which are not, it's almost never a good idea. That means, BIND has nothing like this built in. >> On Tue, Jan 5, 2021 at 4:30 AM Wilfred Sarmiento via bind-users >> <bind-users@lists.isc.org> wrote: >> > Is DNS Bind SRV record can detect the Server's availability? If yes, how? >On Tue, 5 Jan 2021, 23:53 tale <d.lawre...@salesforce.com> wrote: >> Could you provide more information about your goal? I don't fully >> understand the question. >> >> For my reading, the answer is basically no, in that an SRV record just >> provides data about where.a particular service can be found. It's up >> to other systems to fetch that data and interpret it, including >> whether that service is actually available at the given endpoint. In >> its typical operation, BIND will just take whatever name and port the >> zone administrator said to provide for that SRV record, and not do any >> sort of availability checks on it. >> >> However, if you go deep into a far more complicated, custom use of >> BIND, you could set up a process that monitors the availability and >> changes the SRV record accordingly. -- Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. Microsoft dick is soft to do no harm _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
