Re: Leaving a door open?

[v3x <v3x.proof () gmail com>]

Every thought about trying 'Port Knocking'? Great Article on it,
http://www.linuxjournal.com/article/6811 If your decent with shell
scripting, you could write a script that checks your logs for attempts
on certain ports in a certain sequence, then opens up the port to the
ip address they came from. That should solve your problems with just
blatently opening the port and make it a little more secure.

v3x


On 5/27/05, Emmanuel Goldstein <goldstein101 () gmail com> wrote:
> Hi!
>
> My ISP gives me a static Ip and I was thinking about leaving the SSH
> port open so I can access my computer from anywhere since i always
> have it switched on.
>
> I have a linux box that is integrated in my home Lan, and a router
> with firewall capabilities.
>
> Is this secure??? Note that my admin password is really hard to guess,
> so im not concerned about bruteforce attacks.
>
> Should I map ports so instead of opening 22 I access through (eg) 'ssh
> -p 7623'. That way is not that obvious i have an open ssh port is, it?
>
> Any other security issues i should be concerned about?
> Is this a good idea?
> Is it better to just set up an ftp server?
>
>
> Thanks for your help. Cheers. Bye.