MySQLのミラー
http://ftp.iij.ad.jp/pub/db/mysql/Downloads/MySQL-5.5/
$ wget http://ftp.iij.ad.jp/pub/db/mysql/Downloads/MySQL-5.5/MySQL-client-5.5.6_rc-1.rhel5.x86_64.rpm $ wget http://ftp.iij.ad.jp/pub/db/mysql/Downloads/MySQL-5.5/MySQL-server-5.5.6_rc-1.rhel5.x86_64.rpm