PPTP or Point-to-Point Tunneling Protocol is a popular VPN protocol used to establish a secure and encrypted connection between two network devices. It has been widely used for years, but due to some security vulnerabilities, it has become less popular. However, there are several synonyms for PPTP that may be used in its place. Some of the most commonly used synonyms for PPTP include L2TP, SSTP, IKEv2, and OpenVPN. Each of these protocols has its own specific features and benefits, so it is important to choose the right one based on your specific needs. Ultimately, the goal is to ensure a safe and secure connection when browsing the internet.