linux：telnet服务器搭建

1.安装相关包

yum -y instll telnet-server
yum -y instll telnet
yum -y instll xinetd

2.设置开机自启动

systemctl enable xinetd.service
systemctl enable telnet.socket

3.启动服务

systemctl start telnet.socket
systemctl start xinetd（或service xinetd start）