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If this option has been selected, the reverse proxy will choose a random backend
for every request. This setting is the best choice for serving simple static contents.
IP address
This is the simplest way to identify a session. Subsequent requests from the same
source IP will be served by the same backend. This method may be unreliable
with clients situated behind a proxy. Select this option if session detection is not
vital or if none of the following options are possible.
Basic auth
If a client has to authenticate itself using the so called "Basic Authentication", this
option is a good choice. With Basic Authentication the browser usually opens a
small popup window to prompt for the user's credentials. Subsequent requests
using the same credentials will always be sent to the same backend server. It
does not matter whether the backend or SX-GATE's reverse proxy requested the
authentication.
URL parameter
Select this option if a session id is passed along with every request as value
of a specific URL parameter. Enter the name of the respective parameter. The
parameter part of an URL starts with a question mark. Parameters are separated
by "&" characters and have the form "name=value". Subsequent requests with
the same parameter value will be served by the same backend.
Cookie
If the backend servers use cookies to identify a session you should select this
option. Fill in the name of the cookie. Requests with the same value for this cookie
will be forwarded to the same backend.
Session timeout
The life time of the client to backend mapping is controlled with this parameter. A
session which has not been in use for a longer period of time it will be deleted. In case
the client continues to send requests later, a new mapping to a random backend will
be created.
