Basic ConceptsDell 7330 Mono Laser Printer System Administrator Guide4-4If you want to use HTTPS, each printer must have a unique certificate that is accepted by eachbrowser used to access the printer. This allows the printer web server to use HTTPS andencrypt data between the web browser and the printer. In addition, because each printer’scertificate is unique, you must load a different certificate into the browser for each printer thebrowser will access.See also:Self-Signed Certificates on page 4-3Root-Signed CertificatesRoot-signed certificates are from a trusted Certificate Authority (CA). Using a certificatesigned by a CA enables you to load one certificate into each browser, allowing access to allprinters. Certificates from a trusted third party are considered more secure than self-signedcertificates. Unlike self-signed certificates, root-signed certificates are not susceptible toman-in-the-middle attacks.See also:Root-Signed Certificates on page 4-4Managing Certificates on page 4-6Configuring SSL on page 4-7About Access Control ListsAccess control lists enable you to limit access to devices, as well as device configuration andmanagement features. By default, access control lists are unrestricted, which means allcomputers and host systems are allowed access.The printer has four access control lists that may be configured using the EWS: Print Host Access List: The computers from which users can print. For information onsetting up the Print Host Access List, see Configuring the Print Host Access List onpage 4-9. Administrator Access List: The computers from which you can change printer settings.For information on setting up the Administrator Access List, see ConfiguringAdministrator and Key User Settings on page 4-8. 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 Administratorand Key User Settings on page 4-8. SNMP Access Control List: The host machines that are authorized to access the printerusing SNMP. For information on setting up the SNMP Access List, see Configuring theSNMP Access Control List on page 4-21.