Tag Archives: firewall

Set port knocking with knockd and iptables

This document describes a stealth method to externally open ports that, by default, are kept closed by the firewall. Server side 1. Install knockd 2. Configure knockd Notes: sequence – the sequence required to open desired port seq_timeout – time to wait for a sequence to complete Start_Command – command to be executed when a … Continue reading Set port knocking with knockd and iptables

How to install a PPTP server on debian squeeze

This document describes the required steps to make a fully functional PPTP server on debian squeeze and how to configure Arno iptables firewall to accept incoming connections to PPTP server (in case you use this great firewall script). If you don’t use Arno iptables firewall but you still want to share internet connection with PPTP … Continue reading How to install a PPTP server on debian squeeze