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The problem is that with the widespread use of firewalls on the modern Internet, many of the packets that traceroute(8) sends out end up being filtered, making it impossible to completely trace the path to the destination. However, in many cases, these firewalls will permit inbound TCP packets to specific ports that hosts sitting behind the firewall are listening for connections on. By sending out TCP SYN packets instead of UDP or ICMP ECHO packets, tcptraceroute is able to bypass the most common firewall filters.
tcptraceroute in Debian ----------------------- Michael Toren, the upstream author, has requested that people run a small test suite and mail him the results. The test suite (a short perl program) and the already-reported results are at http://michael.toren.net/code/tcptraceroute/compatibility/ He'd particularly be interested in results from system types that have not already been reported, and more»
TCPTRACEROUTE(1) TCPTRACEROUTE(1) NAME tcptraceroute - A traceroute implementation using TCP packets SYNOPSIS tcptraceroute [-nNFSAE] [ -i interface ] [ -f first ttl ] [ -l length ] [ -q number of queries ] [ -t tos ] [ -m max ttl ] [ -p source port ] [ -s source address ] [ -w wait time ] host [ destination port ] [ length more»
tcptraceroute (1.5beta7+debian-4) unstable; urgency=low * [c22350e] New maintainers, thanks to Daniel Baumann for the prior work on tcptraceroute (Closes: #543861) * [3946e75] debian/control: Added Vcs and DM-Upload-Allowed control fields * [69139a4] Added a watch file -- Giuseppe Iuculano <email@example.com> Sat, 29 Aug 2009 19:07:57 +0200 tcptraceroute (1.5beta7+debian-3) u more»
Version 1.5beta7 (2006-03-28) Added check to ensure pcap_fd is within the range of select(2) to more»
Author: Michael C. Toren <firstname.lastname@example.org> Download: http://michael.toren.net/code/tcptraceroute/ Fil more»