Secure Intranet Servers and VPN

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SSL Certificates for Secure Intranet Servers and VPN
Intranet Servers and Virtual Private Networks require the highest level of security, as sensitive personal and financial information is sent to users across the world. Are your users accessing these servers securely? Does your company use browser-based or SSL-enabled applications (like PeopleSoft, Microsoft Access, or SAP) to access information on a server? Unless your users are accessing your applications using a strong 2048-bit encryption SSL certificate, your company’s information could be available to hackers all over the Web. Ensure that your internal servers, Intranets, and Virtual Private Networks (VPN) are secured.

Secure Server Names or IP Addresses
Internal server certificates can normally be issued in a matter of minutes. Mango CA SSL certificates can also secure your enterprise’s IP Addresses and internal server names. Take advantage of the highest level of encryption offered by us for your internal Web sites, testing servers, development Web sites, and virtual private networks.

A VPN (Virtual Private Network) simulates a private network over the public Internet by encrypting communications between the two end-points. An SSL VPN is a type of VPN that are normally accessed with a Web browser rather than special client software. It allows you to create a separate, virtual network on top of a physical network. For example, you can connect your home computer to the network at your office and have the same connectivity and privacy as if your computer were physically at the office.
Common application used with SSL VPN servers include e-mail, file sharing, remote backup, and remote system management. With SSL VPN security you can securely access your files and applications anywhere in the world.

An SSL VPN server works by creating a virtual channel over the public Internet using symmetric encryption. Both sides of the channel have keys that are used to encrypt and decrypt the traffic. Because symmetric encryption algorithms (AES, Blowfish, etc.) are so fast, they are used to encrypt the majority of the traffic. However, a different method must be used, at first, in order to transfer the keys to the correct parties. This ensures that you are talking with who you think you are talking to. This is where SSL certificates come into play. SSL certificates use Public Key Cryptography using a public and a private key. Any data encrypted with the public key can only be decrypted with the private key, and vice versa. Once identities are verified, a symmetric key is generated and used to encrypt the rest of the data.

To set up an SSL VPN you will need to use a special device or software. If you’ve budget constraint, we recommend the excellent, free SSL VPN solution OpenVPN. You can also check out one of the following commercial solutions:
Windows Server 2008 with ISA 2006

SSL VPN Server Links:
How Virtual Private Networks Work
Moving to SSL VPN
Secure that line!
Guide to SSL VPNs (US National Institute of Standards and Technology)