You can use Microsoft Internet Security and Acceleration (ISA) Server 2006 as your SharePoint front end, providing load balancing, wildcard certificate management, and forms-based authentication. ISA Server monitors server connectivity within the SharePoint server farm for load balancing and to ensure reliability. You can use a wildcard certificate to publish multiple websites with a single web listener, which lets you choose the most cost-effective method of certificate use. ISA Server 2006 supports forms-based authentication to published SharePoint servers, and you can customize the forms for corporate branding and to improve the user experience.
Microsoft Internet Security and Acceleration (ISA) Server 2006 is the security gateway that helps protect your mission-critical applications from Internet-based threats. ISA Server enables your business to do more, with secure access to Microsoft applications and data. Secure your Microsoft application infrastructure by protecting your corporate applications, services, and data across all network layers with stateful packet inspection, application-layer filtering, and comprehensive publishing tools. Now, Forefront TMG and Forefront UAG are used more.
Websoft Solutions will help you in deploying ISA Server/Forefront TMG/Forefront UAG and thus help in protecting and authenticating the access to your corporate environment in SharePoint.