ZENworks® ESM 3.5 Administrator’s Manual 67
Client Location Assurance Service
The Client Location Assurance Service
(CLAS) is an optional feature that provides a
cryptographically-hardened verification that a
pre-defined network environment, identified
by the ZENworks Security Client's location
verification process, is correct. This service is
only reliable in network environments that are
completely and exclusively under the control
of the ESM Administrator. CLAS should
always be installed behind the enterprise
firewall, yet be accessible to any endpoint.
The ZENworks Security Client uses a fixed port to send a challenge to CLAS. CLAS decrypts the
packet and responds to the challenge, proving that it has the private key matching the public key
forming the heart of the digital certificate.
Server Selection and Installation
Please refer to the Installation and Quick Start guide for selection and installation instructions.
Server Maintenance
It is recommended that regular Disk Cleanup tasks be configured to run on this server to remove
temporary files out of the Windows\temp folder. Under extreme load conditions windows can
generate an inordinate amount of temporary files that needlessly take up disk space.
Upgrading the Software
The CLAS software can be upgraded by running the new installation software.
Uninstall
To uninstall CLAS, use the Add/Remove Programs function in the Windows Control Panel.
