From the course: Learning VPN
Join today to access over 22,500 courses taught by industry experts or purchase this course individually.
PPTP
- [Instructor] PPTP, or Point-to-Point Tunneling Protocol, is one of the oldest VPN protocols out there, and if you're setting up a new VPN system, you really probably shouldn't used it, if you can help it. It's considered obsolete, and for a fairly motivated attacker, it's pretty easy to break, though it does show up in a lot of legacy systems. So it's important to be aware of. But modern operating systems have been removing support because it's considered such a risk to use. The PPTP protocol itself doesn't define any specific encryption or protection, so the security of the connection is reliant on a separate mechanism configured by settings on the server and the client. These mechanisms rely on a transfer back and forth of security key information, and most of these mechanisms are fairly easily broken, and most of them top out at 128 bit encryption. PPTP uses TCP port 1723 to set up a GRE, or generic routing encapsulation tunnel between the client and the host, and the tunnel…
Download courses and learn on the go
Watch courses on your mobile device without an internet connection. Download courses using your iOS or Android LinkedIn Learning app.