Hi, On Wed, Feb 15, 2023 at 05:51:40PM +0100, Marc SCHAEFER wrote: > (*) I read some litterature that scanning the whole ipv4 space for every > TCP port takes about a day with a GBit/s or so optimized SYN sender.
https://github.com/robertdavidgraham/masscan "MASSCAN: Mass IP port scanner This is an Internet-scale port scanner. It can scan the entire Internet in under 5 minutes, transmitting 10 million packets per second, from a single machine." (for a single port only, so scanning "every TCP port" will take much longer - 225 days, my math says - OTOH, scanning "the usual suspects" is fast again) gert -- "If was one thing all people took for granted, was conviction that if you feed honest figures into a computer, honest figures come out. Never doubted it myself till I met a computer with a sense of humor." Robert A. Heinlein, The Moon is a Harsh Mistress Gert Doering - Munich, Germany g...@greenie.muc.de
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