Printers often handle RIT Confidential information, but they can easily be overlooked when securing a network. Use the following best practices to secure any printers you support:
- Update the firmware.
- Assign a password for web access to the printer.
- Change the SNMP community strings. (These are the equivalent of printer "passwords." "Public" and "private" are the defaults and are widely known.)
- Disable any unused protocols. (Do you really need Novell IPX enabled, etc?)
- If possible, change the default TCP port from 9100 to another port number. (Specific exploits target the default port and may cause the printers to print blank pages. However, ... ...