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done it and was working fine
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I configured IPTABLES and it is running correctly - the router on Slackware received a Public IP and by DHCP gives Privates IPs to my hosts.<br />
<br />
I forwarded some ports to some Private IPs, so that some software has the direct access from the outside...<br />
<br />
But my PS3 doesn't have Universal Plug n Play enabled. How can I enable it on IPTABLES? Is it some kind of forwarding, DMZ or just I have to enable some modules?<br />
<br />
If necessary I can copy my IPTABLES here...
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I configured IPTABLES and it is running correctly - the router on Slackware received a Public IP and by DHCP gives Privates IPs to my hosts.

I forwarded some ports to some Private IPs, so that some software has the direct access from the outside...

But my PS3 doesn't have Universal Plug n Play enabled. How can I enable it on IPTABLES? Is it some kind of forwarding, DMZ or just I have to enable some modules?

If necessary I can copy my IPTABLES here...

IPTABLES on Slackware - enable UPnP to a Game Consolle

The Linux operating system, in all its flavors, has its own share of security flaws that allow intrusions, but there are various mechanisms by which these flaws can be removed, generally divided into two parts: authentication and access control. Authentication is responsible for ensuring that a user requesting access to the system is really the user with the account, while access control is responsible for controlling which resources each account has access to and what kind of access is permitted.