老站友，很久没有用term了。今天用端口23连bbs.pku.edu.cn，显示“Connection Closed”。端口22也没法访问，只有一行字“SSH-2.0-libssh_0.10.4”。求助一下。
签名档
I dream of Jeannie with the light brown hair
Borne, like a vapor, on the summer air
I see her tripping where the bright streams play
Happy as the daisies that dance on her way
