Netservers GPL Software

Software we have released under the GNU General Public License and related open-source licences.

This page lists the Netservers software available under the GNU General Public License and related open-source licences.

Due to the nature of these licences, this software is free for anybody to use, modify and distribute, provided that if they distribute it, they comply with the terms of the GPL.

Available software

  • PPTP client packet reordering (documentation and patch), a fresh implementation of a simple packet queue, now integrated into pptpclient.
  • PPP DHCP client plugin (tarball) for IP address allocation by a DHCP server, based on udhcp from BusyBox.
  • iptables Byte Limit match, a patch against iptables 1.2.7a which adds support for matching packets at a certain data rate, and which can therefore be used for simple QoS (quality-of-service) control. Updated 22 January 2003.
  • iptables MAC/IP Pair match, a patch set for Netfilter Patch-O-Matic which adds the ability to match large numbers of IP and MAC address pairs, to detect and prevent IP spoofing on large untrusted networks. Updated 8 April 2004.
  • VRRPd daemon mode patch, which adds a -D option to VRRPd, causing it to close standard file descriptors and go into the background. The patch also cleans up some failures to null-terminate strings, and the formatting of the usage message.

This software is used in our FireRack firewalls. Due to its free nature, no official support is available without a support contract, but unofficially you can email support@netservers.co.uk if you have comments, questions or suggestions, and we will do our best to help you, time permitting.

These are historical releases from 2002 to 2004, kept available for reference.