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Question
In linux, you can use the [...] command to see how many machines a packet will go through until it reaches the final destination url/dns.
Answer

traceroute

^^ e.g. you run "traceroute cnn.com" to see how many machines your packet goes through before reaching cnn.com

^^^traceroute by default sends a UDP packet to the target host (unless you use the -I command, to send an ICMP packet instead)


Question
In linux, you can use the [...] command to see how many machines a packet will go through until it reaches the final destination url/dns.
Answer
?

Question
In linux, you can use the [...] command to see how many machines a packet will go through until it reaches the final destination url/dns.
Answer

traceroute

^^ e.g. you run "traceroute cnn.com" to see how many machines your packet goes through before reaching cnn.com

^^^traceroute by default sends a UDP packet to the target host (unless you use the -I command, to send an ICMP packet instead)

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25. Introduction to IP
it means that the packets are not getting there or are not getting back. In all other cases, ping gives an error message reporting the absence of either routes or interfaces. 25.10.2 traceroute <span>traceroute is a rather fascinating utility to identify where a packet has been. It uses UDP packets or, with the -I option, ICMP packets to detect the routing path. On my machine, traceroute metalab.unc.edu gives 5 10 15 20 traceroute to metalab.unc.edu (152.19.25

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