tcptraceroute, A way to make traceroutes with firewalls in the middle of the path

Today I want to show you a real good network administration tool, if you do network administration, you should use ping and traceroute to check whenever a host is alive or not.

Maybe the steps of testing is first ping the server, and if there is no response, you try with traceroute to see where in the route an interruption exists.

Traceroute works sending ICMP packets to all the routers in the way to the destination host, but these days more and more routers and server have the ICMP packets filtered, so here is where tcptraceroute comes to save the day.


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Double Post?

I think this is exactly the same post you did yesterday ( I wonder if this (or the previous) should be deleted.

-Stay Metal!