将1号机的文件分发给4号机:scp id_dsa.pub w04:`pwd`/w01.pub
报错:ssh: connect to host w04 port 22: Connection refused lost connection
但1号机可以把文件分发给2,3号机
xshell能连4号机
报错:ssh: connect to host w04 port 22: Connection refused lost connection
但1号机可以把文件分发给2,3号机
xshell能连4号机
执行:telnet 192.168.*。*
报错:Connection closed by foreign host.