[CentOS-mirror] check our mirror status

Nethub Online - Ming kirjoitti 11.8.2018 klo 6.03:
> Thanks Anssi. Reason of redirecting requests to other mirror because we 
> found there are lots of non local traffic incoming, we thought those 
> traffic were abnormal. Anyway we have canceled the redirecting already, 
> would you check again? Thank you.

OK, looks good, I've re-enabled the mirror now.

mirrorlist.centos.org will primarily direct clients to use a mirror in 
the same country, but if there arent't enough up-to-date mirrors in the 
same country, mirrors from other nearby countries can be included in the 
mirrorlist.centos.org output as well.