Iodine tunnels IPv4 data through a DNS server. This can be useful in different situations where internet access is firewalled, but DNS queries are allowed. The bandwidth is asymmetrical, with limited upstream and up to 1 Mbit/s downstream.

Miredo is an implementation (client, relay, server) of the Teredo specification, which provides IPv6 Internet connectivity to IPv6 enabled hosts residing in IPv4-only networks, even when they are behind a NAT device.

OpenDHT provides an easy to use distributed in-memory data store. Every node in the network can read and write values to the store. Values are distributed over the network, with redundancy. It includes the following features:

• Lightweight and scalable, designed for large networks and small devices;

• High resilience to network disruption;

• Public key cryptography layer providing optional data signature and encryption (using GnuTLS);

• IPv4 and IPv6 support;

• Clean and powerful C++14 map API;

• Bindings for C, Rust & Python 3;

• REST API with an optional HTTP client and server with push notification support.

The following tools are also included:

dhtnode

A command line tool to run a DHT node and perform operations supported by the library (get, put, etc.) with text values.

dhtchat

A very simple IM client working over the DHT.

NetHogs is a small 'net top' tool for Linux. Instead of breaking the traffic down per protocol or per subnet, like most tools do, it groups bandwidth by process.

NetHogs does not rely on a special kernel module to be loaded. If there's suddenly a lot of network traffic, you can fire up NetHogs and immediately see which PID is causing this. This makes it easy to identify programs that have gone wild and are suddenly taking up your bandwidth.

uBridge is a simple program to create user-land bridges between various technologies. Currently, bridging between UDP tunnels, Ethernet and TAP interfaces is supported. Packet capture is also supported.

NNG project is a rewrite of the scalability protocols library known as libnanomsg, and adds significant new capabilities, while retaining compatibility with the original. It is a lightweight, broker-less library, offering a simple API to solve common recurring messaging problems, such as publish/subscribe, RPC-style request/reply, or service discovery.

Wireshark is a network protocol analyzer, or packet sniffer, that lets you capture and interactively browse the contents of network frames.

BIRD is an Internet routing daemon with full support for all the major routing protocols. It allows redistribution between protocols with a powerful route filtering syntax and an easy-to-use configuration interface.

NZBGet is a binary newsgrabber, which downloads files from Usenet based on information given in nzb files. NZBGet can be used in standalone and in server/client modes. In standalone mode, you pass NZBGet nzb files as command-line parameters and it downloads them and exits. NZBGet also contains a Web interface. Its server can be controlled through remote procedure calls (RPCs).

Nload is a console application which monitors network traffic and bandwidth usage in real time. It visualizes the in- and outgoing traffic using two graphs, and provides additional info like total amount of transferred data and min/max network usage.

Socket6 binds the IPv6 related part of the C socket header definitions and structure manipulators for Perl.

The Network File System (NFS) was developed to allow machines to mount a disk partition on a remote machine as if it were a local disk. It allows for fast, seamless sharing of files across a network.

This package provides the commandline utilities nfs4_getfacl and nfs4_setfacl, which are similar to their POSIX equivalents getfacl and setfacl. They fetch and manipulate access control lists for files and directories on NFSv4 mounts.

Nickle is a programming language based prototyping environment with powerful programming and scripting capabilities. Nickle supports a variety of datatypes, especially arbitrary precision numbers. The programming language vaguely resembles C. Some things in C which do not translate easily are different, some design choices have been made differently, and a very few features are simply missing. Nickle provides the functionality of Unix bc, dc and expr in a different form. It is also an ideal environment for prototyping complex algorithms. Nickle's scripting capabilities make it a replacement for spreadsheets in some applications, and its numeric features complement the limited numeric functionality of text-oriented languages such as AWK and Perl.

Nicotine+ is a graphical client for the Soulseek peer-to-peer file sharing network. It is an attempt to keep Nicotine working with the latest libraries, kill bugs, keep current with the Soulseek protocol, and add some new features that users want and/or need.

Nim (formerly known as Nimrod) is a statically-typed, imperative programming language that tries to give the programmer ultimate power without compromises on runtime efficiency. This means it focuses on compile-time mechanisms in all their various forms.

node-irc is an IRC client library for Node.js. It has functions for joining, parting, talking, and many other IRC commands.

This package can read a protobuf schema from the disk, parse it and resolve all imports.

This package provides a SOCKS proxy http.Agent implementation for HTTP and HTTPS.

This package provides a drop-in replacement for the fs module that makes various improvements, including queueing operations, retrying EMFILE errors, and working around various platform quirks.

Global Gradle Clean is a Node.js package used to clean all gradle projects under a given directory. It uses the gradle wrapper to execute the clean task of each project.

This package allows you to pipe streams together and destroy all of them if one of them closes.

This package provides a JSON list with color names and their values.

This package provides long stacktraces for V8 implemented in user-land JavaScript.