hi: we notice some ip address can not access scientific linux servers (web or ftp). I don't know why. for example default sl7.repo list content below: baseurl=http://ftp.scientificlinux.org/linux/scientific/$slreleasever/$basearch/os/ http://ftp1.scientificlinux.org/linux/scientific/$slreleasever/$basearch/os/ http://ftp2.scientificlinux.org/linux/scientific/$slreleasever/$basearch/os/ ftp://ftp.scientificlinux.org/linux/scientific/$slreleasever/$basearch/os/ but they resolve to only 1 ip address: 131.225.105.11 so some of our servers can not get yum update working with the default configuration. this happen about a year ago. and it seems more and more ip are banned..