Re: cdn.debian.net not working in Germany
Axel Beckert (firstname.lastname@example.org) wrote on 29 July 2010 16:18:
>I'm also a little bit confused about cdn.debian.net's behaviour. I'd
>expect from the official primary mirror in a country to be returned at
>least if I query cdn.debian.net from the host itself or the same
>subnet. But that doesn't work on heustock.ethz.ch aka debian.ethz.ch
>root@heustock:~ # host cdn.debian.net
>cdn.debian.net is an alias for deb.cdn.araki.net.
>deb.cdn.araki.net has address 220.127.116.11
>root@heustock:~ # host 18.104.22.168
>22.214.171.124.in-addr.arpa domain name pointer kassia3.snt.utwente.nl.
>IIRC someone said that all official mirrors are included in
>cdn.debian.net's database. But what I get returned is
>ftp.ch.debian.org's upstream mirror instead.
>That's no big pitty though as the network connection between both is
>cheap and fast. But anyway, it's surely not optimal and I did expect
>to get the Swiss primary mirror, not the Dutch one.
>Same happens from a commercial Swiss ISP (well, belongs to UPC now)
>not connected to GEANT2 (as ethz.ch and utwente.nl are).
There is another problem: cdn probes mirrors by a URL constructed from
the IP. This doesn't always work, causing important mirrors to not be
listed. This is the case with ftp.br.d.o.
cdn should not make up urls; it should use those provided by the
mirror admins. Particularly for the primary mirrors.