buer.blog.chinaunix.net is an alias for wildcard.blog.chinaunix.net.qingcdn.com.
wildcard.blog.chinaunix.net.qingcdn.com is an alias for upichq.v.qingcdn.com.
upichq.v.qingcdn.com has address 117.187.40.216
upichq.v.qingcdn.com has address 36.156.185.50