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Point-to-Point Tunneling Protocol (PPTP) is a tunneling protocol for connecting Windows NT clients and servers over Remote Access Services (RAS). It can be used to create a virtual private network (VPN) between computers running NT.

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Apple[]

PPTP is no longer supported by Apple as of macOS Sierra (10.12) due to security issues.[1] More secure VPN protocols include L2TP, IKEv2, and Cisco IPSec.

Microsoft[]

PPTP is an extension of PPP supported by Microsoft. Microsoft Point-to-Point Encryption may be used with PPTP to provide an encrypted connection, as PPTP by itself does not use encryption. Compare: Layer Two Tunneling Protocol.[2]

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