一个开源的VPN原码

				#!/bin/bash								#				# Sign a certificate signing request (a .csr file)				# with a local root certificate and key.				#								if test $# -ne 1; then				        echo "usage: sign-req ";				        exit 1				fi                                                                             								if test $KEY_DIR; then					cd $KEY_DIR && \					openssl ca -days 3650 -out $1.crt -in $1.csr -config $KEY_CONFIG				else					echo you must define KEY_DIR				fi