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Re: Am I Compromised -- Some interesting findings



On Fri, Nov 25, 2005 at 06:43:26PM +0000, Clive Menzies wrote:
> I read here recently about shutting out all ssh access other than your
> own but you need to be careful not to lock yourself out.  You then need
> to close all the ports other than ssh. Not something I've ever done.  It
> would also make sense to close down all external services other than
> ssh.

The 'firehol' firewall could do this.

apt-get install firehol

firehol panic

This disallows all traffic, excluding any ssh shells that are open.

-- 
Maurits van Rees | http://maurits.vanrees.org/ [Dutch/Nederlands] 
Public GnuPG key:  http://maurits.vanrees.org/var/gpgkey.asc
"Make no little plans; they have no magic to stir men's blood and
probably in themselves will not be realized. Make big plans."
---Daniel Hudson Burnham.

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