Free networking sites software for linux

LUA is a small scripting language designed to be embedded inside your application to provide extensibility.
It is also possible to extend the Lua scripting language itself via the use of extensions written in C. This page describes such an extension which provides a small number of basic networking and filesystem primitives.
By installing this extension you will be able to write networking applications in the Lua!
Enhancements:
- Added some filesystem primitives.
- Added API documentation & examples.
- The HTTP server now falls back to a default virtual host if none is specified, or if the attempted one doesnt exist.
- The HTTPD server now supports directory indexing if no index.html file is found in a directory.
- The HTTPD server now writes access.log files to each virtualhost.

Network Configurator is a network configuration tool.
Network Configurator is user-level tool that aims to make network configuration more easy. It have command line and GTK+ interface.
Supported network types:
- Ethernet
- PPPoE
- PPTP
- Wi-Fi (no WEP and WPA for now)
- dialup

GNOME Network is a set of client network-oriented tools, which currently contains a network information tool, a remote shell and desktop clients and a personal web server and a desktop sharing tool.
GNOME Network is Free Software distributed under the terms of the GNU GPL.
Enhancements:
Updated translations:
- gl (Ignacio)
- it (Alessio)

External Site Catalog allows you to index and search external sites in a Plone site.

ExternalSiteCatalog is a web crawler that can index external sites and make them searchable in Plone.

You can specify the sites to index in a Plone Configlet, and directly index them from Plone, or let a scheduler do the job.

Searching the external sites is done in a special portlet that is installed with ExternalSiteCatalog.

External sites are not searchable in the normal Plone catalog, but are only available in a separate catalog in the portal_externalcatalog tool.

Activism Network is a Web-based system that allows activists or anyone else to share contacts, resources (files), events, email lists, and campaigns. etc.

It uses Google Maps.

It is similar to Friendster/MySpace, but more focussed on networking and less on the social aspect.

This area is for developers and users of the software who want to understand how it works, provide feedback, download the source code, report bugs, request features, or otherwise help out.

You can get an account, and then start commenting and writing your own pages.

The Torque Network Library project is a robust, secure, and easy-to-use cross-platform C++ networking API designed for high performance simulations and games.
It features a UDP- based connection architecture with DoS prevention functionality, different types of data guarantee, bit stream compression, server object replication and updating, and a simple, highly space efficient RPC mechanism.
It includes a deterministic application journaling replay function for eliminating hard to find networking bugs.
Main features:
- Portable
- Powerful RPC Support
- Lightweight and efficient - not intended to be a replacement for CORBA.
- Extremely easy to use - two simple macro definitions and youre done.
- No complex wrapper classes to work with - write and call your functions as you normally would, and TNL will take care of the rest.
- Robust UDP-based notification protocol
- Supports fixed or adaptive rate data transfer.
- Arbitrary sized packet window.
- Robust connection handshaking.
- Handles packet loss/out of order delivery.
- Networked Objects
- Instantiation of objects by name or ID.
- IDs are assigned to NetGroups, so that only objects relevant to a connection can be references.
- Event Support
- Unguaranteed, guaranteed unordered, or guaranteed ordered event delivery.
- Notification to the event when it has been received or dropped by a client.
- Ghost Support
- Most-recent state information is transmitted to clienst.
- Scoping of objects to only those clients for which they are relevant - this helps prevent cheating or data sniffing and makes dramatically more effective use of available bandwidth.
- Prioritization of state updates by arbitrary criteria, such as relative velocity, team, ownership, etc.
- Extensible Protocol Architecture
- Easy to extend the protocol, for instance, to transmit player move information with every packet, or add voice support.
- See Torque for examples of additional capabilities that could be added to the protocol.

Nelisys project is Open Source Web-based Management System, to manage and monitor system and network including Router, Switch, Wi-Fi Access Point, Server, Networking services, etc.

There are performance and fault management function.