修改ssh、telnet端口 修改ssh监听端口： 修改/etc/ssh/sshd_config

What ports, IPs and protocols we listen for

Port 22 Port 9999 … sudo service ssh restart

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修改telnet监听端口： 直接修改/etc/services 找到telnet =23并修改之

sudo /etc/init.d/openbsd-inetd restart