gpg: error retrieving 'erich at eckner.net' via WKD: Connection closed in DNS

[Ángel]

On 2021-01-19 at 17:24 +0100, Erich Eckner via Gnupg-users wrote:
> What can cause a "Connection closed in DNS" error? (Maybe the error 
> message can be improved: Doesn't dns use udp by default, which is 
> connectionless?)

I think it means dns.c returned DNS_ECONNFIN [1], which gets converted
to GPG_ERR_DNS_CLOSED in dns-stuff.c and is then libgpg-error describes
as "Connection closed in DNS"

I'm not sure if this error can happen when using UDP, but do note that
you can also (and in some cases must) perform DNS queries using tcp.

Best regards

1- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git;a=blob;f=dirmngr/dns.c;h=3ac6a2d021288bf4124745b6e9567e665e09fe49;hb=93d5d7ea2a8b110b3ad88be25f2f67d706361e44#l360
2- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git;a=blob;f=dirmngr/dns-stuff.c;h=cdda86d63086184bf09e8dce7d946989a61d14d0;hb=93d5d7ea2a8b110b3ad88be25f2f67d706361e44#l394