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robertdavidgraham / masscan

TCP port scanner, spews SYN packets asynchronously, scanning entire Internet in under 5 minutes.
GNU Affero General Public License v3.0
23.52k stars 3.07k forks source link

Any suggestion to improve banner request performance? #343

Open gitxmax opened 6 years ago

gitxmax commented 6 years ago

Although, it partially works, I only get the banners successfully extracted in 20-30% of requests, mostly they come empty, where as I can easily get them with curl (though much slower). Thanks!

gitxmax commented 6 years ago

From the previous issues, I found that using --hello-string[port] helps to pull the header, pretty much every time. The remaining issue is, how to use it with the port ranges..

gitxmax commented 6 years ago

is the project dead? Just installed the masscan on the new server with a secondary ip, on the same subnet and run it with --source-ip xx.xx.xx.xx option, yet it fails to grab most of the banners

g3ngr33n commented 6 years ago

is the project dead?

With a commit less than a week ago ?

I grab over 95 % of the banner without --source-ip, do you scan "from" > "to" the same country or near by ?, try to scan from a far location see what it does

mzpqnxow commented 6 years ago

Using the iptables and —adapter-port method is very reliable, try that.

And no it’s not dead.

On Sun, Apr 15, 2018 at 08:26 g3ngr33n notifications@github.com wrote:

is the project dead?

With a commit less than a week ago ?

I grab over 95 % of the banner without --source-ip, do you scan "from" > "to" the same country or near by ?, try to scan from a far location see what it does

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