tracetrout

README

TraceTrout

A dramatization of a rainbot trout swimming against the data stream.

Quickstart

$ docker run -ti --rm -p 8080:8080 --cap-add NET_ADMIN hownetworks/tracetrout

A Less Quick Start

Prerequisites

The code is designed to run on Linux. Also ensure that iptables and libnetfilter-queue1 packages are installed:

$ apt-get install iptables libnetfilter-queue1

Modify your iptables:

$ iptables -A OUTPUT -p tcp --sport 8080 -j NFQUEUE --queue-num 0
$ iptables -A INPUT -p tcp --dport 8080 -j NFQUEUE --queue-num 0
$ iptables -A INPUT -p icmp --icmp-type time-exceeded -j NFQUEUE --queue-num 0

$ iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 8080

Compiling

Compilation requires the libnetfilter-queue-dev package and Go 1.8 or later.

$ apt-get install libnetfilter-queue-dev
$ go build

Running

To start listening on port 8080:

$ ./tracetrout

Prior Art

• https://dankaminsky.com/2002/11/18/77/, the section about paratrace.
• https://lwn.net/Articles/217023/
• https://github.com/david415/ParasiticTraceroute