Question

Is IP scanning allowed (academical purposes and only in port 80)?

Posted February 2, 2015 4.2k views

Is just a curiosity, is it possible with DigitalOcean to use a droplet to get a list of IP’s currently online (I thought about using zmap to scan and get IP’s with port 80 opened (since I consider port 80 is usual to have it opened and from where I dont have any bad intentions)

The aim of doing this, is just for making a list of IP’s and then trying to get the geolocation of all of them, to place into a map, just to see where the most of the servers are located etc.

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2 answers
Leckoren February 2, 2015

Sssuurreeeee, why not, what could go wrong. Most people will not care, though some might, and even block you for doing so. I would not recommend this unless you know what you are doing.

Then again what do I know.... ;)

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Brohemian March 5, 2015

1) It’s legal.
2) Scanning port 80 is no big deal.
3) I’d read DO’s TOS very carefully (I haven’t). If you piss someone off and they bitch to the abuse department I’m sure there is a clause where they can kick you off their network.
4) Personally, I’d use shithost.com for something like this.
5) If you do do it, use that nmap flag for very slow discovery. I think they call it “stealth”.

—EDIT—

You said zmap, not nmap. My bad. I just looked it up. Cool....

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