Not really. The jump host main purpose usually is to establish an SSH session "on behalf" of "jumper". It's a "-J" option (or I just usually put "ProxyJump" directives in the config file). The purpose of the "-D" is to establish the "listener" to be ready to proxy the traffic by some other application.
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You're basically talking about what is referred to as a jumpserver / jumpbox. It's widely used
Not really. The jump host main purpose usually is to establish an SSH session "on behalf" of "jumper". It's a "-J" option (or I just usually put "ProxyJump" directives in the config file). The purpose of the "-D" is to establish the "listener" to be ready to proxy the traffic by some other application.