CentOS安裝telnet

-1，先檢查是否安裝了telnet ：

  rpm -qa | grep telnet
-2. 然后檢查yum列表里面有什么

[root@slave01 ~]# yum list | grep telnet
telnet-server.x86_64                       1:0.17-48.el6                 @base  
telnet.x86_64                              1:0.17-48.el6                 base 

-3、安裝

yum install -y telnet-server.x86_64
yum install -y telnet.x86_64

-4.執行telnet ip port