Daily IT pill

What’s the difference between Windows and UNIX implementation of the tracert/traceroute tool?

Basically UNIX variants uses the UDP protocol and choose a destination port >33434 or higher, whereas the Windows implementation sends an ICMP echo request directly.

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From now on the Daily tip will be called Daily IT pill and it will be about not only with Linux, but also with networking, security and programming. As usuaul it could be not merely written as a tip, but also as a FAQ.