Avast SecureLine VPN

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OpenVPN

TunnelBear encrypts your internet connection to keep your online activity private on any network. It's one of the few VPN providers in the world that publish regular security audits of their network and applications, by a third-party security auditor.

With Norton Secure VPN you can even access your favorite websites, videos or apps when travelling. Norton Secure VPN offers non-log VPN protection when surfing the web. Norton Secure VPN also blocks ad-tracking cookies, which stops annoying ads and enables faster browsing.

VPN.

OpenConnect is an open-source SSL VPN client for Linux and Windows. OpenConnect is based upon SSL security protocol and was built as a replacement VPN client for Cisco’s AnyConnect SSL VPN. With support from the open source community it has now become the standard underlying technology for many VPN providers. With OpenConnect you can implement your own server, initiate data encryption, and import and manage server configurations.

Openswan has been a popular VPN alternative for Linux users since2005. It is an IPsec implementation with support for most of its extensions (RFC and IETF drafts), even IKEv2, NAT Traversal, X.509 Digital Certificates and more. Openswan comes packages with various Linux distributions, including Gentoo, Fedora, Ubuntu, Red Hat and others.

SocialVPN or IPOP (IP-Over-P2P) is a user-centric, open-source software virtual network that lets end users build their own VPNs. SocialVPN is capable of establish peer-to-peer (P2P) virtual private networks with the help of a social backend like XMPP server (Jabber-Net or Google chat). Such reliable backend can securely authenticate users, maintain a list of each party and establish secure TLS for X.509 certificate exchange.