安装openbsd-inetd
sudo apt-get install openbsd-inetd
安装telnetd
sudo apt-get install telnetd
vi /etc/inetd.conf 末尾手动添加 telnet stream tcp nowait root /usr/sbin/tcpd /usr/sbin/in.telnetd
重启openbsd-inetd
sudo /etc/init.d/openbsd-inetd restart
- 如下输出,说明服务启动成功:
- * Restarting internet superserver inetd [ OK ]
查看telnet运行状态
sudo netstat -a | grep telnet
- 如下输出,说明telnet服务运行正常:
- tcp 0 0 *:telnet *:* LISTEN
关闭服务:
sudo /etc/init.d/openbsd-inetd stop
/etc/inetd.conf 去掉 telnet stream tcp nowait root /usr/sbin/tcpd /usr/sbin/in.telnetd
修改telnet端口:
/etc/services 修改默认端口 23