PortFlash is a tool for network administrators and computer security professionals. It scans through a list or range of IP addresses and ports looking for running services such as FTP or HTTP. This is useful for determining if authorized services are functioning and if there are unauthorized services running. If someone on the network has set up a rogue FTP or HTTP server, PortFlash can detect it. This version features added DNS reverse lookup support, added ping support, and GUI enhancements.