FreeKB - Traceroute on a certain port
nmap - Traceroute on a certain port

Lets say your are unable to connect to a server, and you want to ensure the server is listening on a certain port. Nmap can be used to trace the path to the remote server on a certain port.

nmap -Pn --traceroute -p 443

Starting Nmap 6.40 ( ) at 2017-01-02 19:17 CST
Nmap scan report for (
Host is up (0.076s latency).
rDNS record for
443/tcp  filtered   https

TRACEROUTE (using proto 1/icmp)
1    4.67 ms (
2   18.84 ms
3   35.83 ms (
4   28.85 ms (
5   30.93 ms (
6   33.18 ms (
7   77.75 ms
8   69.48 ms (
9   83.20 ms (


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