I'm not sure why this is a problem now as the old archive servers were doing the same thing. In any case, I've added the following to apache2 configs:
| AddType application/pgp-signature .gpg
Testing without:
> GET /ubuntu/dists/focal-updates/main/dist-upgrader-all/current/focal.tar.gz.gpg HTTP/1.1 > Host: archive.ubuntu.com > ... < Last-Modified: Thu, 16 Jul 2020 08:58:10 GMT < ETag: "612-5aa8b3d596c80" < Accept-Ranges: bytes < Content-Length: 1554 < Content-Type: application/x-gzip
Testing with:
> GET /ubuntu/dists/focal-updates/main/dist-upgrader-all/current/focal.tar.gz.gpg HTTP/1.1 > Host: archive.ubuntu.com >... < Last-Modified: Thu, 16 Jul 2020 08:58:10 GMT < ETag: "612-5aa8b3d596c80" < Accept-Ranges: bytes < Content-Length: 1554 < Content-Type: application/pgp-signature
I'm not sure why this is a problem now as the old archive servers were doing the same thing. In any case, I've added the following to apache2 configs:
| AddType application/ pgp-signature .gpg
Testing without:
> GET /ubuntu/ dists/focal- updates/ main/dist- upgrader- all/current/ focal.tar. gz.gpg HTTP/1.1
> Host: archive.ubuntu.com
> ...
< Last-Modified: Thu, 16 Jul 2020 08:58:10 GMT
< ETag: "612-5aa8b3d596c80"
< Accept-Ranges: bytes
< Content-Length: 1554
< Content-Type: application/x-gzip
Testing with:
> GET /ubuntu/ dists/focal- updates/ main/dist- upgrader- all/current/ focal.tar. gz.gpg HTTP/1.1 pgp-signature
> Host: archive.ubuntu.com
>...
< Last-Modified: Thu, 16 Jul 2020 08:58:10 GMT
< ETag: "612-5aa8b3d596c80"
< Accept-Ranges: bytes
< Content-Length: 1554
< Content-Type: application/