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 to in determining both if authorized services are functioning, and also if there are unauthorized services running. If someone on the network has setup a rogue FTP or HTTP server, PortFlash can detect it. PortFlash is straightforward and easy to use, you define a range or list of IP addresses and ports to be scanned and then begin the scan. PortFlash will go through each IP address checking the ports specified and when it finds an open port it will report back. If the open port it finds is in the list of well known ports it will inform you which services is generally run on that port. PortFlash can also optionally ping an IP address first before scanning it (to determine if a system is running on the IP). It can also run a DNS reverse lookup on each IP to determine the domain name assigned to each IP address.

PortFlash Features:

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IP address scanning
Scan a list or range of IP addresses to identify running services such as FTP or HTTP

Port scanning
Scan a range or list of ports to find authorized and unauthorized services running

Reverse DNS lookup
Perform Reverse DNS lookup on IP addresses being scanned

Network information
Quickly display all domains and workgroups on the network in a Microsoft Networking environment

Find networked computers
List all the computers in each domain or workgroup in a Microsoft Networking environment

TCP Monitoring
Troubleshoot and evaluate network traffic and connections (including port activity such as HTTP, FTP, POP3, SMTP, etc.).

UDP and ICMP monitoring
Monitor information about UDP (used by Real Player and other applications) and ICMP (ping, traceroute, etc.)

NIC (Network Interface Card) information
Network card information is displayed with a click of the mouse