On 9/30/18, Alex <mysqlstud...@gmail.com> wrote: > Hi, > > On Sun, Sep 30, 2018 at 1:19 PM @lbutlr <krem...@kreme.com> wrote: >> >> On 30 Sep 2018, at 09:59, Alex <mysqlstud...@gmail.com> wrote: >> > It also tends to happen in bulk - there may be 25 SERVFAILs within the >> > same second, then nothing for another few minutes. >> >> That really makes it seem like either you modem or you ISP is interfering >> somehow, or is simply not able to keep up. > > I'm leaning towards that, too. The problem persists even when using > the provider's DNS servers.
Is this a personal project or can you get help from the network staff & open trouble tickets with the various providers? I'm making a big guess here, but you mentioned dnsbl.sorbs.net earlier so $ dig dnsbl.sorbs.net. <.. snip ..> ;; ANSWER SECTION: dnsbl.sorbs.net. 86400 IN A 113.52.8.154 dnsbl.sorbs.net. 86400 IN A 113.52.8.155 dnsbl.sorbs.net. 86400 IN A 208.43.139.188 dnsbl.sorbs.net. 86400 IN A 113.52.8.153 dnsbl.sorbs.net. 86400 IN A 208.43.110.204 go here: https://wq.apnic.net/apnic-bin/whois.pl and search for 113.52.8.154 which gives me inetnum: 113.52.8.0 - 113.52.8.255 netname: DIGITALSENSE descr: Digital Sense, Data Centres, Brisbane, Colocation country: AU on the other hand https://whois.arin.net/rest/net/NET-208-43-0-0-1/pft?s=208.43.139.188 gives ms City Dallas State/Province TX If this is a packet drop issue as well as a personal project, you might be stuck with figuring out just how fast you can send queries before things start to break and adjusting your setup accordingly. > I thought for sure I'd see some verifiable > info from other people having problems with cable, such as from > dslreports, etc, but there really hasn't been anything. The comment > made about DOCSIS earlier in this thread was helpful. > > Do you believe it could be impacting all data, not just bind/DNS/UDP? > > Do people not generally use cable as even a fallback link for > secondary services? I figured it was because there's no SLA, not > because it doesn't work well with many protocols. I think it's more of a you pay for what you get thing. "business class" cable costs more & might even be provisioned better, but at least the first question you get when calling support isn't "have you tried turning it off and on?" wrt your earlier I attempted to search github for query.c line 8580 there's probably a github answer; I went to https://ftp.isc.org/isc/bind9/ found my release and downloaded the BIND-xxx.tar.gz source code file. It'd be nice if ISC made no response to a query a separate error vs. lumping it in with all the other "Something has gone wrong." possibilities. Lee _______________________________________________ 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