TL;DR: -L / -R / -D and how each maps to attacker workflow; ProxyJump for chains.

Stub — to be filled in.

What it is

TODO

Preconditions / where it applies

TODO

Technique

TODO

Detection and defence

TODO

References

• https://book.hacktricks.wiki/en/generic-methodologies-and-resources/tunneling-and-port-forwarding.html