yum -y install telnet-server.x86_64yum -y install telnet.x86_64yum -y install xinetd.x86_64
设置开机自启：
systemctl enable xinetd.servicesystemctl enable telnet.socket
开启service：
systemctl start telnet.socketsystemctl start xinetd
netstat -nltp看一下是否开启了23端口，如果开启代表成功了
Centos7-安装telnet服务
原文地址：https://www.cnblogs.com/cx850116/p/9957278.html