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Advantages of SSL VPN
Support for various application protocols
Any application can be secured by SSL VPN without knowing the details. SSL VPN classifies the
service resources provided by applications into three categories:
• Web proxy server resources—Web-based access enables users to establish HTTPS
connections to the SSL VPN gateway through a browser and thereby access the Web proxy
server resources of the servers.
• TCP application resources—TCP-based access allows users to use their applications to
access the open service ports of the server securely. Such resources include remote access
services, desktop sharing services, email services, and common application service resources.
• IP network resources—IP-based access allows user hosts to communicate with servers at
Layer 3 securely, supporting all IP-based applications to communicate with the servers.
Simple deployment
SSL has been integrated into most browsers, such as IE. Almost every PC installed with a browser
supports SSL. To access Web-based resources, users only need to launch a browser that supports
SSL. When a user tries to access TCP-based or IP-based resources, the SSL VPN client software
runs automatically, without requiring any manual intervention.
Support for multiple authentication methods
In addition to the certificate authentication method provided by SSL, SSL VPN also supports the
following authentication methods and any combination of two of the following methods:
• Local authentication
• RADIUS authentication
• LDAP authentication
• AD authentication
Granular access control of network resources
On the SSL VPN gateway, you can configure multiple resources and users, add resources to
resource groups, add users to user groups, and assign resource groups to user groups. After a user
logs in, the SSL VPN gateway finds the user groups to which the user belongs, and checks the
resource groups assigned to the user groups to determine which resources to provide for the user.
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