Re: [gentoo-user] SSH authentication attempts - serious issue

["Leandro Melo de Sales" <leandroal@gmail.com>]

Yes, but how can I do it?

2006/6/5, Joseph <syscon@interbaun.com>:
> Try port knocking.  It is very effective.
> Your ssh port will be closed until you successfully hit certain number
> of ports and even though the ssh port will be open only to the IP
> address that successfully opened the port all others will see ssh port
> as closed.
>
> --
> #Joseph
>
> On Mon, 2006-06-05 at 12:06 -0300, Leandro Melo de Sales wrote:
> > Hi,
> >
> >    today when I was checking the server log I got many external
> > attempts to connect to my sshd service:
> >
> > ...
> > Jun  5 05:09:45 embedded sshd[4740]: Invalid user barbara from x.y.w.z
> > Jun  5 05:09:46 embedded sshd[4742]: Invalid user barb from x.y.w.z
> > Jun  5 05:09:48 embedded sshd[4744]: Invalid user barbie from x.y.w.z
> > Jun  5 05:09:50 embedded sshd[4746]: Invalid user barbra from x.y.w.z
> > Jun  5 05:09:51 embedded sshd[4748]: Invalid user barman from x.y.w.z
> > Jun  5 05:09:53 embedded sshd[4750]: Invalid user barney from x.y.w.z
> > ...
>
> --
> gentoo-user@gentoo.org mailing list
>
>


-- 
Leandro Melo de Sales.
Computer Science Student
Laboratório de Sistemas Distribuídos - www.lsd.ufcg.edu.br
Laboratório de Sistemas Embarcados e Computação Pervasiva -
www.embeddedacademy.org
Universidade Federal de Campina Grande - UFCG
Campina Grande - PB - Brasil

"Sometimes people fall in love, but a little bit of them really love
or find a truth love. Or sometimes they find it but for some reason
they let love pass without live it intensely. This is the free-well."

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