Re: First Steps.

On Mon, Sep 5, 2011 at 3:52 AM, Heddle Weaver <[email protected]> wrote:
> Hello,
>
> Taking first steps in the security world.
> I know that a 'firewall' is nothing but a configuration file for iptables,
> but that's about it.

Yes, a "firewall" works with just a few netfilter commands, but it is
not just that  :)

And the iptables man page... is hard to memorize just its the full
content/modules/options.

What about kernel sysctl for example ? there is a whole "net"
subsystem of kernel variables (sysctl -a | grep net) the documentation
for that is included with the kernel sources and sparse on the
internet...

What about logrotate and rsyslogd config ?  What about the subnets arp
changes monitoring ? etc etc...

> I need recommendations for literature or other sources of reliable knowledge
> that start off with answers to questions such as: 'What is a port?'

Some links I think I haven't see in the thread:

 * http://lartc.org/howto/
 * http://netfilter.org/documentation/index.html

> Any time and trouble appreciated.
> Regards,

Greetings
Iñigo


>
> Weaver.
> --
>
> Religion is regarded by the common people as true,
> by the wise as false,
> and by the rulers as useful.
>
> — Lucius Annæus Seneca.
>
> Terrorism, the new religion.
>