VPS配置OpenVPN，安全、高效的数据传输方案

在现代网络安全日益严格的背景下，数据传输的安全性变得尤为重要，无论是个人用户还是企业，都需要确保数据在传输过程中的安全性，VPS（虚拟专用服务器）作为一个轻量级的服务器虚拟化解决方案，为用户提供了高性价比的服务器资源，而OpenVPN作为一种强大的VPN技术，能够为VPS环境提供额外的安全保障，本文将详细介绍如何在VPS上配置OpenVPN，帮助用户构建一个安全、高效的网络传输方案。

什么是OpenVPN？

OpenVPN是一种基于IPsec的虚拟专用网络协议，用于在用户和服务器之间建立安全的隧道连接，通过OpenVPN，用户可以将VPS连接到互联网，实现数据的加密传输，OpenVPN的优势在于其高度的安全性,能够有效防止数据被中间人窃听或篡改。

VPS配置OpenVPN的步骤

1. 准备环境

   • 确保VPS已安装Linux操作系统。
   • 确认VPS已安装OpenVPN服务，如果尚未安装，可以通过以下命令在终端中安装：

     sudo apt-get install opensystemd openvpn-server opensystemd-config

   • 登录VPS的root账户,获取root用户的权限。

2. 配置OpenVPN服务

   • 打开终端，进入VPS的配置目录，VPS的配置文件位于/etc OpenVPN目录下。
   • 编辑config/opensystemd.conf文件，添加以下内容：

     [global]
     log_file=/var/log/apache2/openvpn.log
     log_level=DEBUG
     log retention=14 days
     log rotation=hourly
     [system]
     openvpn-server=on
     [firewall]
     interface=eth0
     firewall=stateful
     [ipsec]
     protocol=IPSec
     [ipsec.tun]
     interface=eth0
     tunnel=on
     [ipsec Dummy tunnel]
     dummy interface=eth0
     [ipsec Dummy tunnel] interface=eth0
     [ipsec Dummy tunnel] protocol=IPSec
     [ipsec Dummy tunnel] tunnel=on
     [ipsec Dummy tunnel] name=OpenVPNDummy
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] ciphers=CCMP
     [ipsec Dummy tunnel] cipher=CCMP
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PEM
     [ipsec Dummy tunnel] keysource=PEM
     [ipsec Dummy tunnel] key=OpenVPNKey
     [ipsec Dummy tunnel] pre-master secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] premaster secret=OpenVPNMasterSecret
     [ipsec Dummy tunnel] key_mgmt=PE