[ubuntu-uk] Checking to make sure you are safe...port checking etc.

[Bruno Girin]

On Fri, 2010-04-23 at 11:51 +0100, Alan Pope wrote:
> On 23 April 2010 11:47, John Matthews <jakewc2 at sky.com> wrote:
> > Even though we get told most of the time Linux is safe, the more tis
> > used, the more viruses will get written for it. I noticed somebody was
> > talking about checking ports to see if they are visible to the outside.
> > How do you do that? Is there any software, or can it be done via the
> > Terminal. Can somebody help?
> >
> 
> nmap can do this.
> 
> http://nmap.org/bennieston-tutorial/

netstat -l

is another option that will give you an initial idea of what's open and
listening.

Bruno