OpenVPN

VPN is an acronym for Virtual Private Networks. For the non-geek, this is the way you log into your corporate network from home and still be able to see everyone’s computer as if you’re plugged into the network at work. Unfortunately, corporate/enterprise level VPNs are extremely expensive to operate.
OpenVPN is an open-source VPN implementation that is licensed under the GPL license. For the technically minded, here are a list of the features:

  • tunnel any IP subnetwork or virtual ethernet adapter over a single UDP or TCP port,
  • configure a scalable, load-balanced VPN server farm using one or more machines which can handle thousands of dynamic connections from incoming VPN clients,
  • use all of the encryption, authentication, and certification features of the OpenSSL library to protect your private network traffic as it transits the internet,
  • use any cipher, key size, or HMAC digest (for datagram integrity checking) supported by the OpenSSL library,
  • choose between static-key based conventional encryption or certificate-based public key encryption,
  • use static, pre-shared keys or TLS-based dynamic key exchange,
  • use real-time adaptive link compression and traffic-shaping to manage link bandwidth utilization,
  • tunnel networks whose public endpoints are dynamic such as DHCP or dial-in clients,
  • tunnel networks through connection-oriented stateful firewalls without having to use explicit firewall rules,
  • tunnel networks over NAT,
  • create secure ethernet bridges using virtual tap devices, and
  • control OpenVPN using a GUI on Windows or Mac OS X.

Crazy isn’t it. Sure you need some people that actually know what they’re doing to implement this. But then again, isn’t that what you pay your system adminstrator the $$$ for?
Via OpenVPN

  • fasteddie

    Want even easier to setup and use? Try http://www.hamachi.cc

  • fasteddie

    Want even easier to setup and use? Try http://www.hamachi.cc

  • Hamachi – secure mediated peer to peer

    Not open-source, but this is a no-configuration VPN for small sized networks. While many would just say this would be great, I tend to look to this on a small scale base. I would never implement this tool in anything…

  • Hamachi – secure mediated peer to peer

    Not open-source, but this is a no-configuration VPN for small sized networks. While many would just say this would be great, I tend to look to this on a small scale base. I would never implement this tool in anything…