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[Cyberpedia](https://www.paloaltonetworks.cn/cyberpedia?ts=markdown) 2. [Network Security](https://www.paloaltonetworks.com/cyberpedia/network-security?ts=markdown) 3. [VPN 有哪些不同类型?](https://www.paloaltonetworks.cn/cyberpedia/types-of-vpn?ts=markdown) 目錄 * [站点到站点 VPN](#site-to-site) * [远程访问 VPN](#remote-access-vpn) * [云 VPN](#cloud-vpn) * [SSL VPN](#ssl-vpn) * [双 VPN](#double-vpn) * [如何为企业选择合适的 VPN](#choose) * [VPN 类型常见问题](#faq) # VPN 有哪些不同类型? 目錄 * [站点到站点 VPN](#site-to-site) * [远程访问 VPN](#remote-access-vpn) * [云 VPN](#cloud-vpn) * [SSL VPN](#ssl-vpn) * [双 VPN](#double-vpn) * [如何为企业选择合适的 VPN](#choose) * [VPN 类型常见问题](#faq) 1. 站点到站点 VPN * [1. 站点到站点 VPN](#site-to-site) * [2. 远程访问 VPN](#remote-access-vpn) * [3. 云 VPN](#cloud-vpn) * [4. SSL VPN](#ssl-vpn) * [5. 双 VPN](#double-vpn) * [6. 如何为企业选择合适的 VPN](#choose) * [7. VPN 类型常见问题](#faq) VPN 的类型包括 * 站点到站点 VPN * 远程访问 VPN * 云 VPN * SSL VPN * 双 VPN ## 站点到站点 VPN ![站点到站点 VPN 通过互联网将一个总办事处与三个分支办事处安全地连接起来。](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/cyberpedia/site-to-site-vpn-image.png "站点到站点 VPN 通过互联网将一个总办事处与三个分支办事处安全地连接起来。") 站点对站点 *[VPN](https://www.paloaltonetworks.cn/cyberpedia/what-is-a-vpn?ts=markdown)* 在两个或多个不同的网络(如公司的主网络和卫星办公室网络)之间建立链接。许多组织采用站点到站点 VPN,利用互联网通道而不是专用 MPLS 通道来传输机密数据。 拥有分布在不同地区的多个分支机构的组织经常使用站点到站点 VPN。通过这种设置,企业可以安全地将其中央网络与远处的办事处整合在一起,实现无缝通信和资源共享,就好像它们是一个统一的网络。当公司将自己的网络连接到合作伙伴、供应商或客户的网络时,可以将站点到站点解决方案部署为基于外网的 VPN。 **进一步阅读:** [*什么是站点到站点 VPN?*](https://www.paloaltonetworks.cn/cyberpedia/what-is-a-site-to-site-vpn?ts=markdown) ## 远程访问 VPN ![远程访问 VPN 允许远程用户安全地连接和使用公司主数据中心的应用程序和信息,并对传输和接收的所有用户数据进行加密。](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/cyberpedia/remote-access-vpn.png "远程访问 VPN 允许远程用户安全地连接和使用公司主数据中心的应用程序和信息,并对传输和接收的所有用户数据进行加密。") 远程访问 VPN 允许远程用户安全地连接和使用公司主数据中心的应用程序和信息,并对传输和接收的所有用户数据进行加密。 远程访问 VPN 通过在企业网络和远程用户之间使用隧道形成虚拟专用连接,确保安全,无论用户身处何地。 这是通过加密数据来实现的,使潜在拦截者无法破译。用户可以像在现场一样与公司网络进行交互,确保数据传输安全,无需担心外部干扰或数据泄露。 **进一步阅读:** [*什么是远程访问 VPN?*](https://www.paloaltonetworks.cn/cyberpedia/what-is-a-remote-access-vpn?ts=markdown) ## 云 VPN ![远程用户使用 VPNaaS 通过 VPN 隧道通过私有云设置访问内部网络。](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/cyberpedia/cloud-remote-access-vpn.png "远程用户使用 VPNaaS 通过 VPN 隧道通过私有云设置访问内部网络。") 云 VPN,有时也称为托管 VPN 或 VPN 即服务(VPNaaS),是一种专为云环境定制的 VPN 方法。这种 VPN 允许用户通过 Web 界面或台式机或移动设备上的专用应用程序,安全地访问云中的企业资源、数据和应用程序。 传统 VPN 需要用户所在地的特定基础设施,而云 VPN 则不同,它可以无缝集成到公司的云分布框架中。云 VPN 的一个显著优势是在全球范围内快速配置和部署。 与传统的 VPN 相比,使用云 VPN 可增强安全性,并有助于为企业提供更具适应性、灵活性和可扩展性的云设置。 **进一步阅读:** *[什么是云 VPN](https://www.paloaltonetworks.cn/cyberpedia/what-is-a-cloud-vpn?ts=markdown)?* ## SSL VPN ![SSL VPN,远程用户通过 SSL/TLS 隧道连接,通过防火墙到 SSL VPN 网关,链接到服务器。](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/cyberpedia/ssl-vpn.png "SSL VPN,远程用户通过 SSL/TLS 隧道连接,通过防火墙到 SSL VPN 网关,链接到服务器。") SSL VPN,即安全套接字层虚拟专用网络,允许远程用户以安全的方式连接到专用网络。它采用 SSL 安全协议或其继任者传输层安全(TLS)安全协议,确保在用户设备和 VPN 网关之间加密传输数据。这种加密技术可保障数据的完整性和保密性,确保未经授权的实体无法截获或篡改数据。 与某些 VPN 解决方案不同,SSL VPN 无需在用户设备上安装专门的 VPN 客户端软件。相反,它使用标准的网络浏览器,使其更易于访问,并降低了部署的复杂性。用户的网络浏览器和 VPN 设备之间的所有通信都经过加密,因此可以安全地在潜在的不安全网络中传输数据。 SSL VPN 有两种类型: ### SSL 门户 VPN 在这种模式下,用户只需访问一个网页或门户网站,即可链接到其他专用网络资源。通过访问特定网站并输入凭据,用户可以启动安全 SSL 连接。然后,该门户会根据组织的预先定义,授予访问指定应用程序或网络服务的权限。 ### SSL 隧道 VPN 这种变体更加全面,使用户能够安全地访问多种网络服务,而不仅仅是那些基于网络的服务。它通过 SSL 建立加密隧道,允许安全访问各种资源。SSL 隧道 VPN 可能要求浏览器配备额外的应用程序,如 JavaScript 或 Flash,以实现最佳功能。 ## 双 VPN ![Double VPN setup with data traveling encrypted through multiple VPN servers before reaching the internet.](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/cyberpedia/double-vpn.png "Double VPN setup with data traveling encrypted through multiple VPN servers before reaching the internet.") 双 VPN 更像是一种配置,而不是一种 VPN 技术。这种设置包括通过两个连续的 VPN 服务器引导用户流量,提供两层加密。在标准的 VPN 使用中,数据从用户的设备流向一个 VPN 服务器,然后再流向在线目的地。使用双 VPN 配置时,用户的数据首先经过加密,然后发送到初始 VPN 服务器。然后再次加密,并在到达最终在线目的地之前将其导向第二个 VPN 服务器。 虽然双重 VPN 方法通过增加额外的加密层提高了安全性,但也会导致连接速度变慢。速度减慢的原因是数据要经过两个独立的服务器,并经过双重加密处理。虽然对那些寻求增强安全性的人来说是有益的,但由于潜在的性能影响,它可能并不是所有人的理想选择。 **进一步阅读:** *[什么是双重 VPN?](https://www.paloaltonetworks.cn/cyberpedia/what-is-a-double-vpn?ts=markdown)* ## 如何为企业选择合适的 VPN | VPN 类型 | 连接类型 | 软件类型 | 使用案例 | | 远程访问 VPN | 用户连接到专用网络 | 同时安装在专用设备和专用网络上的软件 | 从家中或个人位置连接到专用网络 | | 站点到站点 VPN | 专用网络连接到另一个专用网络 | 两个网络上都有软件,用户不需要应用程序 | 在两个专用网络之间创建安全隧道 | | SSL VPN | 设备通过网络浏览器建立安全的远程访问 VPN 连接 | 可直接访问网络的现代网络浏览器或客户端应用程序。主要有两种类型:VPN 门户和 VPN 隧道 | 企业使用 SSL VPN 使远程用户能够安全访问组织资源,并确保用户互联网会话的安全 | | 基于云的远程访问 VPN | 用户在云中连接公司的应用程序、数据和文件 | 可通过网站或桌面/移动应用程序访问;用户端无需 VPN 基础设施 | 安全访问公司基于云和数据中心的应用程序和数据 | | 双 VPN | 同时使用两个 VPN,尽管实际上具有挑战性 | 专用软件配置或实用程序,但往往会导致冲突 | 通过多层 VPN 增强安全性,尽管正确实施具有挑战性 | |--------------|---------------------------|------------------------------------------------|--------------------------------------------| 在现代商业环境中,远程工作的数量激增。现在,许多公司都采用分布式团队运作。这种转变增加了对安全远程访问公司资源的需求。虚拟专用网络(VPN)可以满足这一需求。它们在远程用户和公司网络之间提供加密连接。 然而,选择 VPN 不仅仅是选择一种产品那么简单。它是更大的网络安全策略的一部分。不同的 VPN 满足不同的业务需求。有些是连接分支机构的理想选择,有些则是为个别远程工作者设计的。不同 VPN 提供商的安全功能各不相同。加密强度、日志记录策略和服务器位置都是必须考虑的因素。企业必须评估自己的具体需求,研究可用的选项,并选择符合其整体安全策略的 VPN。 *[什么是 VPN](https://www.paloaltonetworks.cn/cyberpedia/what-is-a-vpn?ts=markdown)?* ## VPN 类型常见问题 ### 有哪些不同的 VPN 类型? 不同类型的 VPN 连接包括站点到站点、远程访问、云 VPN、SSL 和双 VPN。 ### VPN 和 VPN 隧道有什么区别? VPN 是一种通过公共网络提供安全网络连接的技术,可确保数据的保密性和完整性。另一方面,VPN 隧道是数据在 VPN 内传输的加密途径。VPN 指的是整个安全连接系统,而 VPN 隧道则具体指该系统内的加密数据通道。 ### 什么是最安全的 VPN 类型? 最安全的 VPN 类型通常取决于具体的使用情况和要求。VPN 的安全性还取决于其实施、使用的加密方法以及定期更新和维护。 ### 哪种类型的 VPN 最好? 最佳 VPN 连接类型通常取决于规模和目的。在为企业选择 VPN 类型时,一定要考虑安全要求、可扩展性和易管理性等因素。不同类型的 VPN 适合不同的使用情况。 ### 如何为企业选择 VPN? 在为企业选择 VPN 时,应考虑其安全功能、可扩展性、易用性、支持和成本。确保 VPN 提供强大的加密功能、多因素身份验证和无日志政策。选择一个能满足您的业务需求、拥有直观界面、提供全天候客户支持并符合您的预算的解决方案。研究审查并寻求建议。 ### 虚拟专用网络的例子是什么? 企业场景中 VPN 的一个例子是远程访问 VPN。在家工作或出差的员工可以安全地连接到公司的内部网络,像在办公室一样访问共享文件和应用程序,确保数据安全并保持工作效率。这种 VPN 设置在远程工作人员和公司资源之间架起了一座安全的桥梁。 ### VPN 如何使用 IP 地址? VPN 使用 IP 地址在设备和专用网络之间建立安全连接。当用户连接到 VPN 服务器时,其原始 IP 地址会被屏蔽,取而代之的是服务器的 IP 地址。这可以隐藏用户的身份和位置,提供匿名在线服务。VPN 服务器会处理请求,确保数据通信保持加密和私密。 ### VPN 和 VPN 协议有什么区别? VPN 是一个整体系统或服务,而 VPN 协议则是一组指令,规定 VPN 应如何确保传输数据的安全。 相关内容 [用于远程访问的 VPN 替代方案 随着应用程序和远程用户无处不在,对新型安全 VPN 替代方案的需求变得更加迫切。](https://www.paloaltonetworks.cn/cyberpedia/vpn-alternatives-for-remote-access?ts=markdown) \[GlobalProtect GlobalProtect 不仅仅是一个 VPN。它为各地的所有用户提供灵活、安全的远程访问。\](https://www.paloaltonetworks.cn/sase/globalprotect ?ts=markdown) [利用 SD-WAN 打造未来分支机构 了解如何利用像 Prisma SD-WAN 这样的下一代 SD-WAN 解决方案为未来的分支机构提供动力。](https://www.paloaltonetworks.com/resources/videos/branch-of-the-future-with-sd-wan) [2025 年 Gartner^®^ SASE 平台魔力象限^™^ Palo Alto Networks 荣膺 2025 年 Gartner^®^ SASE 平台魔力象限^™^ 领导者称号,实现三度蝉联](https://start.paloaltonetworks.cn/gartner-sase-mq-2025.html) ![Share page on facebook](https://www.paloaltonetworks.com/etc/clientlibs/clean/imgs/resources/facebook-circular-icon.svg) ![Share page on linkedin](https://www.paloaltonetworks.com/etc/clientlibs/clean/imgs/resources/linkedin-circular-icon.svg) [![Share page by an email](https://www.paloaltonetworks.com/etc/clientlibs/clean/imgs/resources/email-circular-icon.svg)](mailto:?subject=VPN%20%E6%9C%89%E5%93%AA%E4%BA%9B%E4%B8%8D%E5%90%8C%E7%B1%BB%E5%9E%8B%EF%BC%9F&body=%E4%B8%8D%E5%90%8C%E7%B1%BB%E5%9E%8B%E7%9A%84%E8%99%9A%E6%8B%9F%E7%A7%81%E6%9C%89%E4%BA%91%E7%BD%91%E7%BB%9C%E5%8C%85%E6%8B%AC%E7%AB%99%E7%82%B9%E5%88%B0%E7%AB%99%E7%82%B9%E3%80%81%E8%BF%9C%E7%A8%8B%E8%AE%BF%E9%97%AE%E3%80%81%E4%BA%91%E3%80%81SSL%20%E5%92%8C%E5%8F%8C%20VPN%E3%80%82%E6%AF%8F%E4%B8%80%E7%A7%8D%E9%83%BD%E5%8F%AF%E7%94%A8%E4%BA%8E%E4%B8%8D%E5%90%8C%E7%9A%84%E7%94%A8%E9%80%94%E3%80%82%20at%20https%3A//www.paloaltonetworks.com/cyberpedia/types-of-vpn) 返回页首 {#footer} ## 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