Encrypted forwarding series of ssh tunnel [reverse forwarding] for penetration into a certain 60-year-old intranet

Intranet penetration

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Encrypted forwarding series ssh tunnel [reverse forwarding]

Purpose of the experiment
Let the students master through the practice of this system: the reverse forwarding function of using SSH encrypted tunnel to forward data.

lab environment

operating machine

u200b Kali, IP: 10.100.1.1, username: user, password: password

target machine

u200b CentOS 7, IP: 10.100.1.4, username: root, password: password

u200b Windows Server 2003 R2，IP：10.100.