How the endpoint and update server communicate

When the endpoint sends a GET request URL to the auto-update server, the URL contains many pre-defined parameters.

For example:

<UpdateServer URL= "http://download.forcepoint.com/update" />

GET/update?Bits=64bit&Platform=Windows&Domain=forcepoint.com&User=EPUser&SID=xxxxxx& LocalVersion=7.6.1218& LocalDSSVersion=7.6.3.16&ProtocalVersion=1.2&WSCookie=4f3h&DLP=Yes& WEB=Yes&RF=No&CI=No HTTP/1.1

Host: download.forcepoint.com

These parameters provide local information about the endpoint machine. The table below lists the parameters in the GET request URL sent by the endpoint and their description:

Name	Type	Description
Bits	String	Type of OS: 64-bit
Platform	String	Windows
User	String	First log on user name
Domain	String	Domain name
SID	String	Session ID of the first log on user
LocalVersion	String	Version number of the local Forcepoint F1E or Forcepoint DLP Endpoint
LocalDSSVersion	String	Version number of Forcepoint DLP
ProtocolVersion	String	Protocol version of the proxy server
WSCookie	String	Data received from the server
DLP	String	Whether the local machine has Forcepoint DLP Endpoint installed or not: Yes or No
WEB	String	Whether the local machine has Forcepoint Web Security Endpoint installed or not: Yes or No
RF	String	Whether the local machine has Remote Filtering Client installed or not: Yes or No
CI	String	Whether the local machine has the Citrix Integration service installed or not: Yes or No

Similarly, when the auto-update server returns a string in XML-like format, it also includes many pre-defined parameters. For example:

<?xml version="1.0" encoding="utf-8" ?>

<UpdateServer>

<CurrentVersion="7.6.1219">

<CurrentDSSVersion="7.6.3.17">

<CheckSum="A15BCDE9393288EFACDB3493827ABEFD">

<URL="http://download.forcepoint.com/upgrade/installpackage_1219.exe">

<IncludeEP="Yes">

<IncludeDSS="Yes">

</UpdateServer>

The table below provides descriptions of the elements in the XML-like file returned by the auto-update server:

Name	Type	Description
CurrentVersion	String	Version number of the designated installation package on server
CurrentDSSVersion	String	Version number of the designated installation package on the server
CheckSum	String	MD5 checksum of the designated installation package on the server
URL	String	The URL of the installation package on server (maximum size: 2K)
IncludeEP	String	Whether the installation package shouldinclude endpoint software or not: Yes or No
IncludeDSS	String	Whether the installation package should include Forcepoint DLP software or not: Yes or No

Depending on the response of the update server, endpoints can retrieve the install package and install it silently.