Socks SSH Proxy

ssh -D 8123 -f -C -q -N sammy@example.com
Explanation of arguments

-D: Tells SSH that we want a SOCKS tunnel on the specified port number (you can choose a number between 1025-65536)
-f: Forks the process to the background
-C: Compresses the data before sending it
-T  Disable pseudo-tty allocation
-q: Uses quiet mode
-N: Tells SSH that no command will be sent once the tunnel is up
-n  Redirects stdin from /dev/null (actually, prevents reading from stdin).

function ssh-proxy () {
	sub_cmd="${1}"
	proxy_addr="${2}"
	
	case "${sub_cmd}" in
		'start')
			echo "Starting SSH for a SOCKS proxy tunnel."
			ssh -D -1080 -f -C -T -q -N -n "${proxy_addr}" && sshproxy_pid="$!"
		;;
		'status')
			if [[ -n "${sshproxy_pid}" ]] && [[ -n $(ps -ef | grep ${sshproxy_pid}) ]]; then
				echo "The SSH SOCKS proxy is running."
			else
				echo "The SSH SOCKS proxy is NOT running."
			fi
		;;
		'stop')
			if [[ -z ${sshproxy_pid} ]] || [[ -z $(ps -ef | grep ${ssh-pid}) ]]; then
			   kill -1 -p ${sshproxy_pid}; read -t 5
			   [[ -z ${sshproxy_pid} ]] && kill -2 -p ${sshproxy_pid}; read -t 5
			   [[ -z ${sshproxy_pid} ]] && kill -3 -p ${sshproxy_pid}; read -t 5
			   [[ -z ${sshproxy_pid} ]] && kill -9 -p ${sshproxy_pid}; read -t 5
			   [[ -z ${sshproxy_pid} ]] && echo "Unable to kill SSH SOCKS proxy process."
			fi
		;;
	esag
}