Hello again, On Mon, 1 Oct 2018, Alex wrote:
> Are your requests being dropped by the service(s)? > > (Or: are you inadvertently abusing the said service(s)?) I don't believe so - often times a follow-up host query succeeds without issue. It's also failing for invaluement and spamhaus, both of which we subscribe. [...] It also tends to happen in bulk - there may be 25 SERVFAILs within the same second, then nothing for another few minutes.
Hmmm. If it isn't the modem and it isn't the BLs then it more or less has to be the service, no? I'd be tempted by Mr. Clegg's suggestion to spin up a VPS somewhere with decent connection, which will at least offload a lot of retries. Talk to it through OpenVPN, which is very easy to set up, and it can (a) put the VPS on your LAN (b) take much unreliablility out of the presumably unreliable connection between you and the VPS and (c) write very verbose logs if you wish. On occasion on unreliable connections I've had to use TCP for the VPN link but UDP is the norm - OpenVPN has its own ways of dealing with lost packets. Then you'll probably have a whole new can of worms to investigate, but the worms will definitely tell you something. :) -- 73, Ged. _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
