On 05/12/2025 15:34, Alexander V. Makartsev wrote:
On 05.12.2025 07:24, Max Nikulin wrote:
    dig -t SRV _http._srv.deb.debian.org.

This command doesn't return anything useful.
You probably meant it to be:
     dig -t SRV _http._tcp.deb.debian.org.

My bad, I am sorry.

$ dig -t SRV _http._tcp.deb.debian.org.
[...]
;; ANSWER SECTION:
_http._tcp.deb.debian.org. 30   IN      SRV     10 1 80 debian.map.fastlydns.net.

$ dig -t A debian.map.fastlydns.net.
[...]
debian.map.fastlydns.net. 34    IN      A       151.101.194.132
debian.map.fastlydns.net. 34    IN      A       151.101.2.132
debian.map.fastlydns.net. 34    IN      A       151.101.66.132
debian.map.fastlydns.net. 34    IN      A       151.101.130.132

Last-Modified headers for Release files are the same from my location

for ip in \
    151.101.194.132 151.101.2.132 151.101.66.132 151.101.130.132; do
  curl --resolve "deb.debian.org:80:$ip" -Is -o /dev/null \
    -w '%{remote_ip}: %header{last-modified}\n' \
    'http://deb.debian.org/debian/dists/trixie/Release';
done
151.101.194.132: Sat, 15 Nov 2025 10:37:37 GMT
151.101.2.132: Sat, 15 Nov 2025 10:37:37 GMT
151.101.66.132: Sat, 15 Nov 2025 10:37:37 GMT
151.101.130.132: Sat, 15 Nov 2025 10:37:37 GMT

I do not see any issue with deb.debian.org.

Is there a chance that other mirror was actually used due to e.g. the auto-apt-proxy package installed on your machine? Do you have http_proxy environment set? I would not exclude ISP provider's mirror forced through a transparent proxy.

By the way, you may specify deb.debian.org in addition to the selected mirror, so if one mirror is not updated, files may be fetched from another source.

There was a thread on hiding security updates by serving old files, but the main repository, unlike security, is not updated frequently enough require fresh enough files through apt configuration:

Vincent Lefevre. Re: apt config options to specify the CA of the https repository? Sun, 21 Sep 2025 23:51:17 +0200.
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