PPP over crypto pros
  Single TCP connection is very easy to tunnel though firewalls
  Can run on any port, if desired.
  Supports all protocols supported by PPP
  IPv4, IPv6, IPX (can disable protocols if desired)
  SSH Authentication
  OpenSSH supports many client authentication methods.
  OpenSSH host key authentication can be performed once at runtime
  SSL Authentication
  Stunnel supports standardized X.509 certificates, CAs, cert chains.

Copyright 2003, Bri Hatch of Onsight, Inc.

Presented at Real World Linux, 2003.

Presentation created using vim and MagicPoint.