> On 30 Sep 2022, at 07:50, Mike Hodson <myst...@gmail.com> wrote:
>
> I'm attempting to figure out how/why my reverse DNS delegation is broken.
> I've already deleted systemd-resolved's temporary resolv.conf and added in an
> immutable single line
> nameserver 1.1.1.1
> resolv.conf.
>
> I can dig +trace forward hostnames fine.
> I cannot dig -x an ip +trace.
> All I get is the root-servers instead of any sort of reverse looking up
> happening at all.
> What am I doing wrong?
Hiding the actual address you are wanting the reverse lookups for. Really you
have an incredible resource here of knowledgeable people with millennia of
experience between them who would have looked at every delegation and then
would have told you what they saw that was wrong.
Not installing maintenance releases when they are released. dig +trace is a
little fragile in 9.18.1 following the change to libuv. Upgrade to a current
release.
> Thanks,
>
> Mike
>
> $ dig -x 208.x.x.x +trace
>
> ; <<>> DiG 9.18.1-1ubuntu1.1-Ubuntu <<>> -x 208.x.x.x +trace
> ;; global options: +cmd
> . 509855 IN NS a.root-servers.net.
> . 509855 IN NS b.root-servers.net.
> . 509855 IN NS c.root-servers.net.
> . 509855 IN NS d.root-servers.net.
> . 509855 IN NS e.root-servers.net.
> . 509855 IN NS f.root-servers.net.
> . 509855 IN NS g.root-servers.net.
> . 509855 IN NS h.root-servers.net.
> . 509855 IN NS i.root-servers.net.
> . 509855 IN NS j.root-servers.net.
> . 509855 IN NS k.root-servers.net.
> . 509855 IN NS l.root-servers.net.
> . 509855 IN NS m.root-servers.net.
> . 509855 IN RRSIG NS 8 0 518400 20221012170000
> 20220929160000 20826 .
> FkcsBmNz2oK02ARhYfNSfxbnEL93RITDteQtHQoPn8zHZg9B6BRXqkH9
> +UpAEViDraX+4l8YJiUvYzrHh9twpQry0vv7xgDLoDdU9kRqokG5DEoq
> Ueqph6qleC6Vylga4f1MzW
> N+Dh9zK9/eCSp6WxwgbnW53a9GMDbI5KWZ
> WkcWw3IPHVvVwDZfWhrKJtKZ3hafsGgmigm9F01Xk17prOAS6jBbvYjT
> jCUyTl3UZJ+bAKS4tkpFdjp78raxBKBQPN6TzdLjtxYQrhriZZ3Gjdcg
> dT+WQkLGYuyeakm2JqVe9vXGMGn0XkZEGMYnh7iW80N1XHyBMfhzGO+s 61zvWA==
> ;; Received 1097 bytes from 1.1.1.1#53(1.1.1.1) in 12 ms
>
>
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