[HECnet] All gone silent

(If "DIG" was used to produce output's this would be easier to debug...) Here i my 5-cents, DNS servers/DNS revolvers do nowadays not respond if the indirect bit is set in a query. This might be the thing we are seeing? -P ----- Original Message ----- > On 2021-08-17 03:04, Paul Koning wrote: >> >> >>> On Aug 16, 2021, at 6:36 PM, Mark <mwjr at protonmail.com> wrote: >>> >>> Mystery solved (or at least the mystery of no response) - I used to have some >>> issues when I ran authoratitive DNS and mail directly from our school's IP >>> addresses rather than an 'established' (big tech co) source >> >> Why would that explain the failure to answer DNS queries? DNS servers are >> supposed to answer queries from everyone. I've never heard of failing to do >> so. FWIW, I just tried asking ns1.protonmail.ch about mail.protonmail.ch, and >> it was happy to answer me (to my random Comcast client addresses, IPv4 and IPv6 >> both work). > > I think the comment should be read as "that explains the failure of the > mail being delivered". > > Why the DNS queries are blocked from my mail server remains a mystery, > but it is a fact that they are. > > I could/should update that machine, in case there is something in my > whole setup that is a reason, but right now I can't really understand > what that would be... > > If I explicitly give the IP address of ns1.protonmail.ch as the name > server, I do get a response. Not sure if it might in the end be some > other name server that is refusing me, and I don't really feel like > trying to figure out where things are going wrong right now. > But maybe updating my system will help. We'll see. Something I'll try in > the next day or two. > > Johnny > > -- > Johnny Billquist || "I'm on a bus > || on a psychedelic trip > email: bqt at softjar.se || Reading murder books > pdp is alive! || tryin' to stay hip" - B. Idol