Is there already something out there, than can deauth specific clients ?

[Adek]

I know about the jammer, but is there a infusion that allows to deauth just a few clients ?

[Mr-Protocol]

You can manually go in and aireplay-ng them, given it's not point and click.

[Adek]

using pineapple ? - please tell how.

[Mr-Protocol]

Yes, ssh into the pineapple and it has the aircrack suite installed.

[Adek]

of course, I were too focused on the webui :)

[Sitwon]

I believe airdrop-ng is the specific tool that does what you're describing.

[Mr-Protocol]

aireplay-ng will do it. I'm not sure airdrop-ng is installed stock.