Hello all,
Regarding the mirror fedora.is, it's sponsor is incorrectly listed as "Siminn" and should be "Opin Kerfi" [ https://opinkerfi.is/ | https://opinkerfi.is/ ] (This can be verified with a quick whois of the IP address) Also the rsync URL is missing: rsync://rsync.fedora.is/CentOS/
Also, this mirror also works identically if you do 's/fedora/centos/g' on the config.
[ http://www.fedora.is/CentOS/ | http://www.centos.is/CentOS/ ] [ https://www.fedora.is/CentOS/ | https://www.centos.is/CentOS/ ] rsync://rsync.centos.is/CentOS/ [ ftp://ftp.centos.is/pub/CentOS/ | ftp://ftp.centos.is/pub/CentOS/ ]
So maybe centos.is is better than fedora.is for CentOS? :)