centos7 安装telnet服务

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• 1，检查是否安装 telnet-server和xinetd
  • rpm -qa telnet-server
  • rpm -qa xinetd

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• 2，如果没有安装过就安装 查找yum
  • yum list |grep telnet
  • yum list |grep xinetd

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• 3,执行安装语句
  • yum -y install telnet-server.x86_64
  • yum -y install telnet.x86_64
  • yum -y install xinetd.x86_64

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• 4,设置开机自启：
  • systemctl enable xinetd.service
  • systemctl enable telnet.socket

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• 5,开启service：
  • systemctl start telnet.socket
  • systemctl start xinetd

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