HP LaserJet M5000 LaserJet MFP - Imaging and Printing Security Best Practices - Page 87
File System, Password, Secure File Erase Mode, Secure Fast Erase, Secure Sanitizing Erase
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NOTE: Some storage management tools, such as the Web Jetadmin Device Storage Manager (a Web Jetadmin add-on available in the Product Update navigation mode), use some of these protocols to access the file system. You might consider enabling these protocols only to update configurations and then disable them during normal MFP operation. Also, note that disabling PJL and PML only affects file system access, but disabling NFS shuts down the protocol for the entire MFP. • Disable PJL access. PJL (Printer Job Language) includes capabilities to manage configurations in the form of commands inside print jobs. Some of these commands can access MFP storage devices. Disabling PJL access to the file system disables only the commands that affect the file system. This will not affect the preferences available for normal print jobs. With PJL access disabled, the MFPs will ignore PJL commands that attempt to access the file system. • Disable PostScript access. The PostScript protocol enables programs such as Adobe® products to access the MFPs directly for printing and for access to fonts. Some of the commands it uses can access MFP storage devices. Disabling PostScript access to the file system disables only the commands that affect the file system. This will not affect the preferences available for normal print jobs, but could affect interoperability with third party products. • Disable PML access. PML (Printer Management Language) is an HP proprietary protocol that manages MFPs. Web Jetadmin uses PML for many of its configuration settings. Disabling this PML access eliminates the PML commands that affect access to the storage devices even for Web Jetadmin. If you wish to make changes to the file system, enable PML access to make the changes, and disable it again. With this setting, MFPs will ignore PML commands that attempt to access the file system. • Disable NFS access. The NFS protocol is used by UNIX, and Linux, and Norton systems. Disabling it disables the entire protocol for the MFPs. With this setting, MFPs will ignore all NFS requests. If your network uses these protocols, you should enable NFS. • Configure the File System Password. The File System password feature restricts access to the Secure File Erase Mode, Secure Storage Erase, and External File System Access Settings. This setting is important because it helps protect data stored on the MFPs. It does not affect normal use of the MFPs such as job storage. Users attempting to make changes to the file system settings or attempting to access data through network ports will be required to provide this password. Without the password, the MFP denies access to the File System and to File System configurations. Web Jetadmin stores the file system password in its encrypted device cache. It automatically provides the password when the MFPs request it. • Set the Secure File Erase Mode to Secure Fast Erase or to Secure Sanitizing Erase. Secure File Erase enables the MFPs to overwrite storage space whenever files are deleted. This Chapter 7 HP LaserJet and Color LaserJet MFP Security Checklist 83
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