Very Computer

man hosts.allow

--
My motorcycle is so much faster than yours that
I dare you to ride it, you lame little turd.
        "Song of the Sausage Creature" by Hunter S. Thompson

Hi,

I was wondering how I could close ports in Linux, e.g. that outsiders
cannot telnet or ftp my machine anymore.

Thanks!

Turn of all unused services in /etc/inetd.conf

Arne
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Arne K. Haaje   | T: 69 92 04 90
Enebakkveien 2  | F: 69 92 04 91
1625 Tomter     | M: 92 88 44 66
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Quote:> Hi,

> I was wondering how I could close ports in Linux, e.g. that outsiders
> cannot telnet or ftp my machine anymore.

To shutoff telnet, ftp or any other services completely.....

edit /etc/inetd.conf and comment out the services you don't want,
then restart inet.

To limit services to a select few, see the man page for hosts.allow
and hosts.deny. That way you can configure who is allowed to
use what service without disabling the service all together.

Quote:> I was wondering how I could close ports in Linux, e.g. that outsiders
> cannot telnet or ftp my machine anymore.

Unplug the network connection to your computer (including modem
lines).  I guarantee that outsiders will no longer be able to
telnet or ftp to your machine.

-- Keith

maintainer of alt.os.linux.slackware FAQ