每天一个linux命令---telnet

执行telnet指令开启终端机阶段作业，并登入远端主机。

telnet的命令的格式：

telnet  ip port

例1：  建立连接不成功

[richmail@portal bin]$ telnet 192.168.9.177
Trying 192.168.9.177...
telnet: connect to address 192.168.9.177: Connection refused

检查ip和端口是否正常

例2：建立链接成功

[richmail@portal bin]$ 
[richmail@portal bin]$ 
[richmail@portal bin]$ 
[richmail@portal bin]$ telnet 192.168.9.198   61616
Trying 192.168.9.198...
Connected to 192.168.9.198.
Escape character is '^]'.
ActiveMQ
 MaxFrameSize@   CacheSize
                                 CacheEnabledSizePrefixDisabled MaxInactivityDurationInitalDelay'TcpNoDelayEnabledMaxInactivityDurationu0TightEncodingEnabledStackTraceEnabled