What's new in Multi Threaded TCP Port Scanner 4.0
Feb 17, 2012
- Added mixed port specification for parameter -p, that makes possible to specify port lists and ranges together
- Added support for Mac os x
New in Multi Threaded TCP Port Scanner 3.0 (Feb 17, 2012)
- Added a number of new features:
- Added host name resolution
- Added option -o for output to file in plain text format
- Added option -oh for output to file in html format
- Added option -ox for output to file in xml format
- Reversed the meaning of -r : by default shows port names, with -r does
- not show them
- Skipping duplicated open ports: Due to the low delay between two sends, the pcap library may call the receive function multiple times for the same port. Increasing the delay time, this problem can be bypassed, but it will slow down processing. With this solution, it's possible to keep a low delay and avoid duplicates at once.
- Changed name to "portscanner"
- Added target host name to output, if given
- Removed printing of options -w and -n for Connect scan
- Help message changed according to the new options
- Fixed mistyped word "Receovery"
- Renamed net.h into pscan.h to collect general program definitions
- Moved version number to macro PSCAN_VERSION unified output by using fprintf(stdout), fprintf(stderr) or
- fprintf(file)
- Improved indentation of code
- Removed commented lines of code
- Removed useless function print_status()
- Removed useless return statements
- Renamed macro OPENED to OPEN
- Moved generic output functions to output.c
New in Multi Threaded TCP Port Scanner 2.0 (Feb 17, 2012)
- Added option -s for Syn scan.
- Scanning made faster thanks to Syn scan
- Added even more default ports
- Improved error handler for Syn scan
- Improved text output
- Fixed minor bugs:
- changed pathname to oui.txt and port-numbers.txt files
- added missing call to cleanup function WSACleanup
- A new branch of the program was created to support Syn scan.
- Syn scan was necessary because under some circumstances of heavy load, the Connect scan can hang routers. Syn scan is multi-threaded and uses the standard library pcap on Unix/Linux operating systems. Please be aware that Syn scan requires a higher level of authorization, if compared to connect sockets:
- in Unix/Linux portscanner requires root privilege.
- In some operating systems, Syn scan is performed using connectionless "raw" sockets, therefore the usage of port scanner is subject to possible restriction to the usage of raw sockets in such operating systems. With Syn scan, option -w is not used because the program does not use connected sockets, so it doesn't have to loop reading a socket until the timeout is
- reached. The receive function doesn't have to poll over a number of sockets, but simply reads the packets passing through the network card, for all ports, and displays the message of "open port" when the packet coming from the remote IP contains the information that the remote port is open. For the same reason, options -a and -n are not used. The first one because packets
- sent to closed ports are simply not being replied to, so they cannot be counted; the second one because the function that reads packets is one, and performs this by reading packets from the network card, not from multiple sockets.
New in Multi Threaded TCP Port Scanner 1.3 (Feb 17, 2012)
- added more default ports.
New in Multi Threaded TCP Port Scanner 1.2 (Feb 17, 2012)
- default port list is now not 1-1024, but is a list of frequently used ports; duplicates check
New in Multi Threaded TCP Port Scanner 1.1 (Feb 17, 2012)
- you could use not only port range, but single ports and port lists (check -p option)