Shell (38): SSH port forwarding

Reference resources : Mac terminal /Iterm Forward the port through the springboard _CS Dien community area grass blog -CSDN Blog _mac Springboard machine

notes : The current example is a two-tier springboard , You need to log in layer by layer to access the last machine

1=> This machine

2=> [email protected]

3=> [email protected]

4=> [email protected]

This machine needs access [192.168.3.1] Services provided , Need to be in [192.168.1.1] The machine does port forwarding , hold [192.168.3.1] The port of is forwarded to the local port , The order is as follows

[192.168.1.1]

ssh [email protected] -L 192.168.1.1:8080:192.168.3.1:8080 -N

Local access : [192.168.1.1:8080]