PPTP 和 OpenVPN 的区别

先决条件 – 虚拟专用网络 (VPN) 的类型
1. 点对点隧道协议(PPTP)：
PPTP 是微软推出的。它是一组实现虚拟专用网络的通信规则，它允许组织通过隧道将其专用网络扩展到公共 Internet。通过创建基于 TCP/IP 的网络(例如 VPN)，它可以创建从远程客户端到私有企业网络的数据传输的安全路由。

PPTP 提供以下优势 –

• 低硬件成本
• 安全增强
• 传输成本低
• 降低管理开销

2. OpenVPN :
OpenVPN 是由 James Yonan 介绍的。它是用于实现 VPN 连接的最先进、更可靠和更流行的开源软件应用程序。

它更灵活，在以下情况下使用 –

• 您想要高安全性的高级解决方案
• 您需要特殊功能，例如特定隧道
• Internet 提供商阻止了您或您想忽略限制性防火墙。

  PPTP 和 OpenVPN 的区别：

  S.NO	PPTP	OpenVPN
  1.	It is a type of protocol that help to implement VPNs.	Whereas OpenVPN is an open source software solution that help to implement VPNs.
  2.	Microsoft had introduced PPTP.	Whereas it was written by a man, James Yonan.
  3.	PPTP is very fast as compared to OpenVPN.	Whereas it is comparatively slow.
  4.	In PPTP, GRE protocol and port number 1723 are used.	While port number 1194 is used in this, it can be changed to anyone.
  5.	PPTP is less reliable on unstable network connections as compared to OpenVPN.	Whereas OpenVPN is comparatively more reliable on unstable network connections.
  6.	PPTP can’t be easily recovered compared to OpenVPN.	While comparatively it can be easily recovered.
  7.	PPTP has some major security weaknesses.	While in OpenVPN, there is no such known major weakness.
  8.	Firewalls can easily block PPTP.	Whereas it can bypass multiple firewalls by installing a port on some known port number like 443.
  9.	PPTP is less used world wide.	Whereas OpenVPN is more widely used.