Vahan Yerkanian kirjoitti:

Hi,

I've just noticed that our local mirror, centos.mirrors.arminco.com is not being included in the mirrorlist script's output, f.e. http://mirrorlist.centos.org/?release=6&arch=x86_64&repo=os

I believe something's wrong with the geomirror rules, as I've tried several Armenian IP ranges, and none get the local mirror in the output.

I can see the mirror in the output of

curl -4 'http://mirrorlist.centos.org/?release=6&arch=x86_64&repo=os&cc=a...'

so the IPv4 mirrorlist server knows that your mirror is an Armenian mirror. Some examples of those several Armenian IP ranges might be helpful in diagnosing the problem. The IPv4 address 195.250.65.20 of centos.mirrors.arminco.com seems to be properly registered as an Armenian IP on MaxMind, based on http://www.maxmind.com/en/geoip_demo

I believe the mirrorlist service uses the MaxMind database for determining the country. I don't know how often the mirrorlist server fetches updates to the database, though.

It also looks like your mirror has an IPv6 address, 2001:4d00:10:7:195:250:65:20. Oddly enough your mirror seems to serve different content depending on IP version:

$ curl -4 http://centos.mirrors.arminco.com/ (a directory listing of CentOS version 2.1 through 6.4)

$ curl -6 http://centos.mirrors.arminco.com/ Welcome to ARMINCO Global Telecom's public mirror services Currently this server provides public Armenian mirrors for the following projects: ...

$ curl -4 http://centos.mirrors.arminco.com/TIME 1380626641

$ curl -6 http://centos.mirrors.arminco.com/TIME 404 Not Found The requested URL /TIME was not found on this server.

Because the IPv6 mirror checker has been unable to retrieve any files from the mirror over IPv6, your mirror does not get listed in the output of

curl -6 'http://mirrorlist.centos.org/?release=6&arch=x86_64&repo=os&cc=a...'

Fixing this problem might help with your mirror not showing up on the list of mirrors. You can see on http://miuku.net/ipv6reach/ that your mirror is unreachable from all locations (=monitoring modes are unable to fetch the TIME file).