A Practical Guide to SSH Tunnels: Local and Remote Port Forwarding
a day ago
- #Port Forwarding
- #Networking
- #SSH
- SSH tunnels allow secure remote access to services through port forwarding using standard SSH tools.
- Local port forwarding (ssh -L) forwards a local port to a remote service, making remote resources accessible locally.
- Remote port forwarding (ssh -R) exposes a local service on a remote port, often requiring GatewayPorts configuration on the SSH server.
- Dynamic port forwarding (ssh -D) creates a local SOCKS proxy, allowing flexible access to multiple remote hosts.
- SSH tunnels can traverse bastion hosts or jump hosts to access private networks, such as VPCs or home networks.
- Background execution options (e.g., -f -N) enable persistent tunnels without an interactive shell.
- The tutorial includes practical labs to demonstrate local, remote, and dynamic forwarding scenarios.