MiniUPnP Client and Daemon
The MiniUPnP project is a library and a daemon. The library is aimed to enable applications to use the capabilities of a UPnP Internet Gateway Device present on the network to forward ports. The daemon adds the UPnP Internet Gateway Device functionality to a NAT gateway running OpenBSD through PF.
Miredo is a Unix daemon program which implements the Teredo: Tunneling IPv6 over UDP through NATs Internet draft specification.
Multiplexing Console Manager
Multiplexing Console Manager is a daemon that provides multiplexed access to network accessible consoles (e.g. terminal servers, Serial Over LAN, etc).
mxallowd is a daemon for Linux Netfilter (using libipq) which implements a slightly improved nolisting mechanism. It requires your name server to be configured to return two MX IP addresses, and the one with higher priority must not run a mail server on port 25. mxallowd blocks attempts to connect to the mail server unless the sender tries to connect to the first mail server before the second. Since most spammers will attempt direct connections to each mail server, they will be blocked.
Nagserv is a daemon with 2 functionalities. It can act as an RSS feeder that provides the Nagios status as an RSS feed (e.g. which services are down, etc.). It can also be a bridge between the new Nagios 2.0 status.log format and tools that expect the older Nagios 1.2 format.
NAmpel is a daemon for visualizing the state of a network, using Nagios.
a authentication daemon for NAT and Transparent Proxy. The authentication input is done by the browser, it will redirect any URL to a internal page, asking for login and password
netacct-mysql is a modified version of traffic accounting daemon net-acct which stores collected data in MySQL.
manages network interfaces in response to network cables being plugged in and out
NetTraf consists of a daemon running on Linux, and a client application that monitors one interface on the Linux machine. It is mainly used to show the status of a dial-up connection of a Linux masquerade server, so everyone on the network knows if the connection is active and how well the connection is performing.
NIELD (Network Interface Events Logging Daemon) is a tool that receives notifications from the kernel through the netlink socket, and generates logs related to link state, neighbor cache(ARP,NDP), IP address(IPv4,IPv6), route, FIB rules.
nionet is a complete VPN server/client solution that bridges an Ethernet segment over whatever transport network you chose. Thus it is possible to have no difference wether the road warrior is in the office or outside - everything works the same way: DHCP, TCP/IP, ARP, Routing, etc.
nisldapd is a software daemon written in C for *nix systems that, given a properly configured ypserv, slapd and syslog environment, can provide user and group information via NIS/YP which is published in an LDAP datastore.
Octod is a "download manager daemon", i.e. a daemon that listens at the network interface for incoming download jobs and performs them (simultaneously) in the background. It is intended to run on desktop systems as a reliable and fast download manager without the overhead of a graphical user interface, but it can also be used as a centralized download station running in network environments with multiple users.
Oculus Server Monitor
Oculus Server Monitor uses a plaintext protocol to export server information to any client that connects to it. It supports a plugin system for commands, an XML-style configuration file, and IP-based access control.
Open Lock Daemon: simple lock server which provides central point where to lock resources in a distributed environment by using TCP/IP to communicate with its clients
a free implementation of the Network Time Protocol. It provides the ability to sync the local clock to remote NTP servers and can act as NTP server itself, redistributing the local clock
an effort to develop an open-source implementation of Service Location Protocol suitable for commercial and non-commercial application
P4Spam is a Perforce change review daemon which spits out sexy HTML-styled notification emails.
a small helper to make your pf tables reachable from other hosts. You can add/delete/flush IP addresses to/from a fixed table with a single UDP datagram. A simple client program is included to do this from the command line
Policyd is an anti-spam plugin for Postfix (written in C) that does greylisting, sender (envelope or SASL) based throttling (on messages and/or volume per defined time unit) and Spamtrap monitoring / blacklisting.
Portkey is an implementation of a port-knocking daemon. It's simple, reliable and requires no special clients - telnet is fine. It supports knocks on any valid TCP port in the range 1-65535 and supports key sequences of arbitrary lengths.
PPP Gatekeeper is a daemon which manages PPPOE connections supporting various levels of redundancy and failover.
ptcap is a Unix daemon that captures traffic packet size, source, destination, and times and saves this data into a native Postgres or ODBC database in near real time, from which traffic reports may be made. It does not save the actual data or headers. It works on ethX or cooked devices like ppp0. It uses Postgres embedded SQL to insert the data, pcap to capture traffic, and pthreads to capure and write at the same time. Pcap filters can be specified on the command line. Logs go to syslog.
Portable Transport Relay Translator Daemon: a method of allowing IPv6 hosts to communicate with IPv4 hosts. It is a TRT as specified by RFC 3142, similar to the Faith package implemented by the KAME project
PyGopherD is a modern Gopher server. It can serve documents with Gopher+, standard Gopher (RFC1436), and HTTP -- all on the same port. Pygopherd features a modular extension system as well as loadable scripts and much more.
qpimd aims to implement a PIM (Protocol Independent Multicast) daemon for the Quagga Routing Suite.
Linux IPv6 Router Advertisement Daemon: sends Router Advertisement messages, specified by RFC 2461, to a local Ethernet LAN periodically and when requested by a node sending a Router Solicitation message
Rsyncmanager is a daemon designed to simplify the task of coordinating multiple file transfers to or from a machine. It was originally written to serve as the managing hub of a backup system that used rsync to feed in files from many other machines, so that all backups could be run from a single place.
a TCP port scan detection tool, originally designed to illustrate various attacks an IDS developer has to deal with
sec-wall is a security proxy for everything related to securing HTTP/HTTPS traffic. Designed as a pragmatic solution to the question of securing servers using SSL/TLS certificates, WS-Security, HTTP Basic/Digest Auth, custom HTTP headers, XPath expressions with an option of modifying HTTP headers and URLs on the fly.
sesoma allows you to build a virtual user infrastructure using sendmail and PostgreSQL/MySQL without patching.
sessiond allows a cluster of SSL/TLS servers to share their session caches in order to prevent each node of the cluster from negotiating a separate session.
shaperd is a user-space traffic shaper.
a C# deamon that implements the UPnP Internet Gateway Device specification (IGD) and allows UPnP aware clients, such as MSN Messenger or DirectPlay based applications to work properly from private networks
The SIP forwarding daemon (implemented as a stateless SIP proxy) allows you to seamlessly forward SIP requests to other SIP servers
Snort2Pf greps Snort's alertfile and blocks the "naughty" hosts for a given amount of time using pfctl.
Simple Network Time Sync allows multiple groupings of servers and clients on a network for independent time management for labs.
This is a C++ implementation of a socks4 server. It supports both CONNECT and BIND operations.
Spyrius is an extensible multithreaded superdaemon. It is essentially a TCP server that manages loadable modules ("plug-ins"). Each module represents a network service that can be loaded into or unloaded from the daemon on-the-fly. Worker threads are spawned to handle incoming client connections. A client can communicate with several modules in the course of one session with the daemon. The daemon itself can be administered over a TCP connection.
provides the standard Internet whois directory service
System Local Audit Daemon
SLAD is a tool for performing local security checks against GNU/Linux systems. The Version 2.0 provides a XML Interface for Parameters and easy integration of additional audit-parameters and tools. To help the administrator to integrate a new feature-set, a development-documentation is provided with the cvs.
captures traffic packet size, source, destination and times and saves this data into a postgres database in real time, from which traffic reports may be made. Works on cooked devices like ppp0 Uses - embedded sql to insert the data - pcap to capture traffic - pthreads to capure and write at the same time
tgw is a tcp gateway which allows you to connect two machine which cannot normally communicate via an intermediate node.
tinc is a Virtual Private Network (VPN) daemon that uses tunneling and encryption to create a secure private network between hosts on the Internet.
an IPX protocol tunneling daemon, running IPX over TCP/IP between many hosts and unpacking them on the other side. This is especially useful for people with masqueraded hosts who want to communicate IPX traffic to others with masqueraded hosts.
a userspace network accounting daemon which collects headers of IP packets that travel through the Linux 2.4+ Netfilter. It logs aggregated accounting records that consist of source/dest, ports, byte/packet counter, interfaces, protocol
UniK OLSR daemon
an implementation of the Optimized Link State Routing protocol for GNU/Linux systems
USB Network Daemon
The USB Network Daemon is an application that makes a USB interface available over the network as transparently as possible. Because the data structures that are accepted by the daemon are similar to the direct USB calls of a well-known USB driver vendor, the (additional) implementation of the network interface can be done easily.
vpnd connects two networks on network level either via TCP/IP or a (virtual) leased line attached to a serial interface.
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