# chisel > Create TCP tunnels. Includes both client and server. > More information: . - Run a Chisel server: `chisel server` - Run a Chisel server listening to a specific port: `chisel server -p {{server_port}}` - Run a chisel server that accepts authenticated connections using username and password: `chisel server --auth {{username}}:{{password}}` - Connect to a Chisel server and tunnel a specific port to a remote server and port: `chisel client {{server_ip}}:{{server_port}} {{local_port}}:{{remote_server}}:{{remote_port}}` - Connect to a Chisel server and tunnel a specific host and port to a remote server and port: `chisel client {{server_ip}}:{{server_port}} {{local_host}}:{{local_port}}:{{remote_server}}:{{remote_port}}` - Connect to a Chisel server using username and password authentication: `chisel client --auth {{username}}:{{password}} {{server_ip}}:{{server_port}} {{local_port}}:{{remote_server}}:{{remote_port}}`