Mobility And Security Part 1 SSL Based VPN s
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Mobility and Security Part 1: SSL-Based VPNs
Understanding SSL and VPN
What is SSL?
SSL (Secure Sockets Layer) is a protocol developed by Netscape to ensure secure data transmission between a client and a server. Widely adopted by web browsers like Microsoft Internet Explorer, SSL enables encrypted data transactions over the internet, making it integral to e-commerce sites that handle credit card transactions.
What is a VPN?
A VPN (Virtual Private Network) is a private communication network used by companies or groups to share information securely over public networks. VPN traffic typically travels over the Internet, using standard protocols that are often insecure.
The Rise of SSL VPNs
While SSL VPN technology has existed for several years, its popularity has surged recently with the introduction of affordable, purpose-built devices. Companies like Juniper, Nortel, and Cisco have developed cost-effective SSL-based VPN solutions catering to various businesses, including small and medium enterprises.
Unlike IPSEC VPNs, SSL VPNs function at the application layer, making them simpler to set up, support, and maintain. These VPNs work seamlessly with most modern web browsers without needing specific software, allowing them to be accessed from any computer. Furthermore, since most corporate networks permit web traffic, including SSL ports, SSL VPNs are highly effective for mobile workers across different environments. This flexibility addresses issues faced by IPSEC VPNs in NAT environments.
One of the significant advantages of SSL VPNs is per-user access control, allowing administrators to specify which applications users can access.
Key Benefits
1. Low Total Cost of Ownership: Affordable solutions for businesses.
2. Endpoint Security: Offers security in various environments, such as limiting access when antivirus protection is absent on mobile devices.
3. Clientless Access: Utilizes web browsers for accessing shared folders, applications, and extranet resources.
4. On-Demand Access: Provides full network layer access when needed.
5. Secure Public Domain Access: Enhances security for thin-client access over the web (e.g., Citrix).
6. Customizable Control: Allows per-user or per-group application list control.
Next Steps
1. Understand Company Goals: Determine what your business aims to achieve with a VPN solution.
2. Identify Applications and Services: Consider what you want to offer over your VPN and explore available options.
3. Assess Security and Service Needs: Identify which VPN products meet these needs.
4. Implement Additional Safeguards: Consider extra security measures to protect your VPN.
SSL-based VPN solutions are now affordable and ensure that mobile workers can access essential company information from virtually any device, anywhere. They offer ease of use, accessibility, and a reliable way for remote access to critical data.
Should you need assistance, SSI's mobile and security specialists are available to provide comprehensive solutions, including consultancy, planning, deployment, support, and user training for companies of all sizes.
You can find the original non-AI version of this article here: Mobility And Security Part 1 SSL Based VPN s.
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