# Copyright 1999-2010 Gentoo Foundation # Distributed under the terms of the GNU General Public License v2 # $Header: /var/cvsroot/gentoo-x86/profiles/desc/xtables_addons.desc,v 1.2 2010/08/12 13:28:19 pva Exp $ # This file contains descriptions of XTABLES_ADDONS USE-EXPANDED variables. # Keep it sorted. account - ACCOUNT target is a high performance accounting system for large local networks chaos - CHAOS target causes confusion on the other end by doing odd things with incoming packets checksum - CHECKSUM target computes and fills in the checksum in a packet that lacks a checksum condition - matches if a specific condition variable is (un)set delude - DELUDE target will reply to a SYN packet with SYN-ACK, and to all other packets with an RST dhcpmac - DHCPMAC target/match in conjunction with ebtables can be used to completely change all MAC addresses from and to a VMware-based virtual machine echo - ECHO target sends back all packets it received fuzzy - matches a rate limit based on a fuzzy logic controller (FLC) geoip - match a packet by its source or destination country iface - match allows to check interface states ipmark - IPMARK target allows mark a received packet basing on its IP address ipp2p - matches certain packets in P2P flows ipset - enables build of ipset related modules ipv4options - match against a set of IPv4 header options length2 - matches the length of a packet against a specific value or range of values logmark - LOGMARK target will log packet and connection marks to syslog lscan - match detects simple low-level scan attemps based upon the packet's contents quota2 - match implements a named counter which can be increased or decreased on a per-match basis pknock - match implements so-called "port knocking", a stealthy system for network authentication psd - match attempts to detect TCP and UDP port scans (derived from Solar Designer's scanlogd) rawnat - The RAWSNAT and RAWDNAT targets provide stateless network address translation steal - STEAL target is like DROP, but does not throw an error when used in the OUTPUT chain sysrq - SYSRQ target allows to remotely trigger sysrq on the local machine over the network tarpit - TARPIT target captures and holds incoming TCP connections using no local per-connection resources tee - TEE target will clone a packet and redirect this clone to another machine on the local network segment