Yes, but how can I do it?
2006/6/5, Joseph <[EMAIL PROTECTED]>:
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
> ...
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--
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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