Free proxy daemon software for linux

Policy Daemon project is an anti-spam plugin for Postfix (written in C) that does Greylisting, Sender-(envelope, SASL or host / ip)-based throttling (on messages and/or volume per defined time unit), Recipient rate limiting, Spamtrap monitoring / blacklisting, HELO auto blacklisting and HELO randomization preventation.
Enhancements:
- Merged OSX -L < libdir > vs. -L< libdir > fix into v1.8x branch
- Added quirk for SIGPIPE on Apple
- Added quirk for some versions of NetBSD which dont have SO_NOSIGPIPE
- Added error message that if we cannot find how to handle SIGPIPE on the host platform to contact the devel mailing list
- Make "stats" command a bit better aligned
- Be paranoid bout our read buffer size check
- Better check to see if weve run out of available slots, if we have emit a warning and close connection
- Fixed potential buffer overflow when line length exceeds MAXLINE

Proxy Detector is a PHP class that can detect HTTP requests via proxy. This class can detect if a visitor uses a proxy server by scanning the headers returned by the user client.
When the user uses a proxy server, most of the proxy servers alter the header. The header is returned to PHP in the array $_SERVER.
Enhancements:
- This is the first release of the class and implementation example.

OLSR daemon project is an implementation of the Optimized Link State Routing protocol for mobile ad-hoc networks (MANETs).
OLSR is a routing protocol for mobile ad-hoc networks. The protocol is pro-active, table driven and utilizes a technique called multipoint relaying for message flooding. olsrd also implements a popular optional link quality extension. Currently the implementation compiles on GNU/Linux, Windows, OS X, FreeBSD and NetBSD systems.
Olsrd is ment to be a well structured and well coded implementation that should be easy to maintain, expand and port to other platforms. The implementation is RFC3626 compliant with respect to both core and auxiliary functioning.
Olsrd supports use of loadable plugins. These can be used to to handle and generate custom packettypes to be carried by OLSRs MPR flooding scheme or for any other desired functioning.
Enhancements:
- Network simulator (olsr_switch) added. Read more in the README file included in the release.
- New experimental fish eye link distribution algorithm. Read more in the README file included in the release.
- Tiny Application Server(TAS) plugin added
- Plugin interface changes. Olsrd now exports all symbols mening that plugins can access all olsrd functions easily.
- Olsrd now builds and runs on OpenBSD
- Build system rewrites(OS detection is now done automagically)
- Lots of bugfixes and minor changes

PowerDNS daemon Nameserver is a advanced, modern and high performance authoritative-only nameserver.
It is written from scratch and conforms to all relevant DNS standards documents. Furthermore, PowerDNS interfaces with almost any database.
The PowerDNS Nameserver utilizes, a flexible backend architecture can access DNS information from any data source. This includes file formats, Bind zone files, relational databases or LDAP directories.
If you have specific needs for your DNS infrastructure then you can use the Backend Developers Kit to write the glue between PowerDNS and your data or logic.
There is one master database that is replicated to two slave databases. The slave databases are read-only and are updated immediately when the master database changes.
For sites that do not yet have an existing database infrastructure we recommend the MySQL database. MySQL is very easy to setup and handles replication well.
If your nameservers are located on different physical networks then you immediately take advantage of the distributed nature of DNS. Questions will be load balanced on your array of servers. If a server is down then one of the other servers is queried.
PowerDNS is by default configured to serve all information directly from a database, which results in unmatched maintainability of your DNS information.
PowerDNS has developed a complete suite of technologies surrounding Internet Naming and email. Internet Naming is at the core of all online activities and is involved in each and every transaction on the net. Email remains the killer application of the Internet.
Enhancements:
- This release fixes many issues, unifies the PowerDNS Recursor and Authoritative DNS infrastructure (reducing code size by 2,000 lines), significantly improves the "BIND" compatibility mode (making real life zone loading up to 30 times faster than the original BIND), addresses many corner cases, reworks the TCP backend for improved stability, and makes 64 bit packages available.

ESE Key Daemon is a multimedia keyboard driver for Linux. No kernel patch is needed.
ESE Key Daemon is a userspace program which pools /dev/input/event interfaces for incoming keyboard key presses.
Enhancements:
- A bug in the configuration file handling routines was fixed.

DConnect Daemon is a Direct Connects hub working as daemon. It works currently under linux and FreeBSD, but we want to make them work on all Unixes (and under Windows).
DConnect Daemon works as a daemon in background and does not require any Xwindow system. Everything should work without any maintenance, but with possible runtime manipulations.
Main features:
- written in pure C
- utilizes threads - allow to work faster on SMP mashines
- good and strict protocol implementation - as far as we know it...
- access limitation through libwrap
- telnet administration console and traditional with DC client
- flexible configuration
Enhancements:
- Because full support for syslog is included, the old way of logging to files was removed.
- Switch to syslog-ng is recommended as it will make your logs cleaner.
- Silent mode is now switched on so it is impossible to redirect users who should not have access to the service you provide.

Music Player Daemon (MPD) is a server that allows remote access for playing music (MP3, Ogg Vorbis, FLAC, AAC, Mod, and wave) and managing playlists.
Music Player Daemon makes a great desktop player with frontend options (Qt, GTK, ncurses, Windows, and Web clients are available). It is also appropriate as a console player that is scriptable, and is especially useful if X is restarted frequently.
A set of rapid development tools for clients are being developed and include a C library, Python module, PHP class, Perl module, and Java Class.
The goals are to be easy to install and use, to have minimal resource requirements, to be stable and flexible, and easy to interface.
MPD is designed around a client/server architecture, where the clients interact with MPD over a network. Thus, running MPD is only half of the equation; to use MPD, you need to install a MPD client:
Web Clients
- phpMp - Web interface written in PHP
- phpMp2 - Another web interface written in PHP
Graphical Clients
- gmpc - Gnome Music Player Client
- kmp - Graphical interface written in Qt
- MPDCon - A GNUstep Graphical interface
- glurp - Graphical interface written in GTK+
- WMmp - Window Maker dockapp
- gtk2mp - Try gmpc first! Graphical interface written in Gtk+
Command Line Clients
- ncmpc - ncurses (command line) client
- mpc - (Scriptable) command line client
- bashmp - client written as bash aliases and functions
Miscellaneous Clients
- mpcstick - Linux joystick client
- arthist - Perl client to generate a web blog of MPD activity

Ircproxy is a transparent IRC content filtering application. It may be used whenever there is a need for monitoring IRC connections.

irc-proxy may be used to deny specific connections or to examine suspicious IRC traffic.