8c4b2dfb39
- Remove DEPRECATED and EXPIRATION_DATE - Change MASTER_SITES to github - Install tcptraceroute to PREFIX/bin - Add DOCS options and PORTDOCS - Use new @(user,group,perm) format in PLIST - Reformat pkg-desc Changes: https://github.com/mct/tcptraceroute/blob/master/ChangeLog
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948 B
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17 lines
948 B
Text
tcptraceroute is a traceroute implementation using TCP packets.
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The more traditional traceroute(8) sends out either UDP or ICMP ECHO packets
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with a TTL of one, and increments the TTL until the destination has been
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reached. By printing the gateways that generate ICMP time exceeded messages
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along the way, it is able to determine the path packets are taking to reach the
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destination.
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The problem is that with the widespread use of firewalls on the modern Internet,
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many of the packets that traceroute(8) sends out end up being filtered, making
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it impossible to completely trace the path to the destination. However, in many
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cases, these firewalls will permit inbound TCP packets to specific ports that
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hosts sitting behind the firewall are listening for connections on. By sending
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out TCP SYN packets instead of UDP or ICMP ECHO packets, tcptraceroute is able
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to bypass the most common firewall filters.
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WWW: https://github.com/mct/tcptraceroute
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