.LPD File Extension

Configuration file used by LabVIEW, an engineering software used for interfacing measurement and control hardware devices with software; saves an OPC (OLE for Process Control) server configuration and provides the setup data for interfacing with a PLC, RTU, or a HMI/SCADA application.

File used by IBM AIX systems and other UNIX systems; has the filename hosts.lpd and specifies print permissions for individual computers or groups of computers; allows system administrators to create fine-grained access control policies for networked printers.

LPD files are used by the lpd daemon, a service that processes print requests. When a print request arrives, the lpd daemon creates a process that checks both the hosts.lpd file and the hosts.equiv file in the /etc/ directory. Using these files, the daemon determines whether the print request is allowed.

NOTE: LPD files can be edited with any text editor.