I’m on at least 2 blocklists at this point for the crime of not having reverse DNS set up. I don’t know how rDNS works. No amount of reading Wikipedia is helping me understand what I have to do.

  • I have a domain at a registrar which gives me bog standard DNS.
  • I have Apache running on my network.
  • I have PiHole running on my network.

My understanding is that rDNS is not set up at my registrar, but somewhere in my network. What do I do?

Thank you for your time.

  • Shadow@lemmy.caEnglish
    1·
    1 year ago

    Your ISP may block 80 / 443. Try moving your webserver to an alternate high port and ask the users to test with that.

    • drkt@feddit.dkOPEnglish
      1·
      1 year ago

      But it’s only very few people. If my ISP blocks these ports, why 99% of people have no issues?

      • Shadow@lemmy.caEnglish
        1·
        1 year ago

        At this point I’d install wireshark and see if I’m getting their TCP connections at all.

        Given your other routing issues though, I would guess you have another config issue on your firewall.