... remote user sends the SVN5800 a request for a web page hosted on the intranet, the SVN58050 forwards the request ... server to the user. The content of the web page is transmitted through SSL-encrypted tunnels to ensure data integrity ... password (VPNDB), AD, RADIUS, LDAP, SecurID, X.509 digital certificate, USB key, SMS, device ID, and CAPTCHA authentication. Supports hierarchical authentication, single ...