SSH Tunnel / Port Forwarding

putty.txt

1. Run PuTTY
2. Go to "Connection" -> "SSH" -> "Tunnels"
3. Enter "Source Port" with local port number. e.g.: 10022
4. Enter "Destination" with remote IP address and port number. e.g.: 192.168.101.101:22
5. Click "Add"
6. Go to "Session"
7. Enter "Host Name (or IP address)" with remote intermediary server host/IP. e.g.: 192.168.100.100
8. Enter "Port" with remote intermediary server port. e.g.: 22
9. Click "Open"
10. Enter username
11. Enter password
12. Right click at PuTTY window top bar. Click "New Session"
13. Enter "Host Name (or IP address)" with "localhost".
14. Enter "Port" with port configured at step 3. e.g.: 10022
15. Click "Open"
16. Enter username
17. Enter password

tunnel.sh

ssh -f -N -T -M -L 10022:192.168.101.101:22 user1@192.168.100.100
ssh -p 10022 user3@localhost