http://www.extmail.org/scuttle/ Recent bookmarks posted to Scuttle. 60 http://bbs.chinaunix.net/viewthread.php?tid=688447&extra=page%3D1 权作参考，信手粘来 hzqbbc Fri, 13 Jan 2006 01:37:25 +0000 cluster 高可靠 ha heartbeat linux linux-ha 心跳