mod_auth_isilon is an Apache module for authenticating web clients

Authentication may be performed via form based auth, Basic Auth, or
SPNEGO (HTTP Negotiate auth protocol) to perform a GSSAPI/Kerberos or
NTLM authentication from the user's browser.

In the all cases an HTTP session id is generated and returned to the
client as an HTTP cookie.  This allows the server to cache the
authentication credentials for a set period of time.
