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http://www.stunnel.org/ - http://www.stunnel.org/
A GNU program allowing to encrypt arbitrary TCP connections inside Secure Sockets Layer (SSL). |
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PPTP Client - http://pptpclient.sourceforge.net/
A Linux, FreeBSD and NetBSD client for the Microsoft Point-to-Point Tunneling Protocol. |
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Point to Point Protocol Extensions Working Group (PPPEXT ) - http://www.ietf.org/html.charters/pppext-charter.html
An IETF group working on PPP's extensions. |
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PPTP Crack - http://www.schneier.com/pptp.html
Counterpane Systems has exposed insecurities in Microsoft's Point to Point Tunneling Protocol. |
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http://www.poptop.org/ - http://www.poptop.org/
PPTP server solution for Linux. Includes downloads, documentation and news. |