我用bbs.ppunion.org的网路服务。。。

Forgot to mention, port 8888.

thanks, ayanami, I tried, but it looks stange. first, it seems they don't have that service under www; second, when I try "网路连线" service under telnet, the system says "一次穿梭200元"!

and more: is MIT down recently?

mit好的呀，可能就是国内上不了。