On Thu, Apr 19, 2018 at 11:44 PM, Francois Gouget <fgou...@free.fr> wrote:
> Are DNS servers banning queries from some residential addresses or > something like this? I'm banning some, off and on, (I see massive hits from all over the globe on my DNS server -- ~100K hits a day above my rate limit). Have you tried to ping that unresponsive one to see if it's alive? Or a TCP Telnet connection to its port 53? Is it possible that you've exceeded their rate limit? -- Glenn English