Xerox 7500DX System Administrator Guide (English Only) - Page 40

Security Features Root-Signed Certificates Root-signed certificates are from a trusted Certificate Authority (CA). Using a certificate signed by a CA enables you to load one certificate into each browser, allowing access to all printers. Certificates from a trusted third party are considered more secure than self-signed certificates. Unlike self-signed certificates, root-signed certificates are not susceptible to man-in-the-middle attacks. See also: Managing Certificates on page 42 Configuring SSL on page 43 Access Control Lists Access control lists enable you to limit access to devices, as well as device configuration and management features. By default, access control lists are unrestricted, which means all computers and host systems are allowed access. The printer has four access control lists that may be configured using CentreWare IS: • Print Host Access List: The computers from which users can print. For information on setting up the Print Host Access List, seeConfiguring the Print Host Access List on page 45. • Administrator Access List: The computers from which you can change printer settings. For information on setting up the Administrator Access List, see Configuring Administrator and Key User Settings on page 44. • Key User Access List: The computers from which key users can change printer settings. For information on setting up the Key User Access List, see Configuring Administrator and Key User Settings on page 44. • SNMP Access Control List: The host machines that are authorized to access the printer using SNMP. For information on setting up the SNMP Access List, see Configuring the SNMP Access Control List on page 57. 40 Phaser 7500 Color Printer System Administrator Guide