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NetXMS is new and rapidly developing monitoring system, released under GPL2 license. It can be used for monitoring entire IT infrastructure, starting with SNMP-capable hardware (like switches and routers) and ending with applications on your servers. NetXMS is an extremely reliable and powerful monitoring system, enabling you to improve your network availability and service levels.

IPCAD is an IP accounting daemon. It uses bpf or pcap to access interfaces and gather IP statistics. Collected numbers are arranged to form an address-to-address flow pairs and than can be accessed via rsh in Cisco fashion, or exported via NetFlow UDP protocol. See README file and man pages for details.

The Net::IP::Match::XS module efficiently matches IP addresses against IP ranges. The unconditionally exported subroutine 'match_ip' determines if the ip to match ( first argument ) matches any of the subsequent ip arguments. Match arguments may be absolute quads, as '127.0.0.1', or contain mask bits as '111.245.76.248/29'.

YAF is Yet Another Flowmeter. It processes packet data from pcap(3) dumpfiles as generated by tcpdump(1) or via live capture from an interface using pcap(3) into bidirectional flows, then exports those flows to IPFIX Collecting Processes or in an IPFIX-based file format. YAF's output can be used with the SiLK flow analysis tools and any other IPFIX compliant toolchain.

KTorrent has been split into the application ktorrent and the library libktorrent. Libktorrent contains all the torrent downloading code, and ktorrent contains all application code and plugins. The goal is to make libktorrent an independent library (though still closely related to ktorrent), which can be used by other applications.

6tunnel 允许你通过仅支持 IPv4 的应用程序访问 IPv6 主机提供的服务，反之亦然。 它可以绑定到你的 IPv4（默认）或者 IPv6 的地址并转发所有数据到 IPv4 或 IPv6（默认）主机。 举个例子，它可以用作一个 IPv6 的 IRC 代理。

The ifstated daemon runs commands in response to network state changes, which it determines by monitoring interface link state or running external tests. For example, it can be used with carp(4) to change running services or to ensure that carp(4) interfaces stay in sync, or with pf(4) to test server or link availability and modify translation or routing rules.

Pacemaker is an advanced, scalable High-Availability cluster resource manager for Linux-HA (Heartbeat) and/or Corosync. It supports "n-node" clusters with significant capabilities for managing resources and dependencies. It will run scripts at initialization, when machines go up or down, when related resources fail and can be configured to periodically check resource health.

The IO::Socket::Multicast module subclasses IO::Socket::INET to enable you to manipulate multicast groups. With this module (and an operating system that supports multicasting), you will be able to receive incoming multicast transmissions and generate your own outgoing multicast packets.

This module implements remote procedure call. I've tried to keep things simple. So this module should be: - quite simple to use (thanks to autoload mechanisms) - lightweight It sure is not: - DCE - CORBA - bulletproof - securityproof - foolproof But it works. (Although I'm opened to suggestion regarding the "un-proof" areas)