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

This package contains a variety of tools for dealing with network configuration, troubleshooting, or servers. Utilities included are:

arping

Ping hosts using ARP.

clockdiff

Compute time difference between network hosts using ICMP TSTAMP messages.

ninfod

Daemon that responds to IPv6 Node Information Queries.

ping

Use ICMP ECHO messages to measure round-trip delays and packet loss across network paths.

rarpd

Answer RARP requests from clients.

rdisc

Populate network routing tables with information from the ICMP router discovery protocol.

tftpd

Trivial file transfer protocol server.

tracepath

Trace network path to an IPv4 or IPv6 address and discover MTU along the way.

Restbed is a comprehensive and consistent programming model for building applications that require seamless and secure communication over HTTP.

Netperf is a benchmark that can be used to measure the performance of many different types of networking. It provides tests for both unidirectional throughput, and end-to-end latency. The environments currently measurable by netperf include: TCP and UDP via BSD Sockets for both IPv4 and IPv6, DLPI, Unix Domain Sockets, SCTP for both IPv4 and IPv6.

Hashcash is a proof-of-work algorithm, which has been used as a denial-of-service countermeasure technique in a number of systems.

A hashcash stamp constitutes a proof-of-work which takes a parametrizable amount of work to compute for the sender. The recipient can verify received hashcash stamps efficiently.

This package contains a command-line tool for computing and verifying hashcash stamps.

libdnet provides a simplified, portable interface to several low-level networking routines, including network address manipulation,kernel arp(4) cache and route(4) table lookup and manipulation, network firewalling, network interface lookup and manipulation, IP tunnelling, and raw IP packet and Ethernet frame transmission.

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.

PuTTY is a graphical text terminal client. It supports SSH, telnet, and raw socket connections with good terminal emulation. It can authenticate with public keys and Kerberos single-sign-on. It also includes command-line SFTP and older SCP implementations.

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 SerialPort is a modular suite of Node.js packages for accessing serial ports. The Guix package node-serialport provides the recommended high-level interface.

Parsers are used to take raw binary data and transform them into usable messages. This package provides CCTalk, which emits packets for the ccTalk protocol (an open standard for currency detectors) as they are received.

Typescript definition files (*.d.ts) for 'he'.

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

The most correct and second fastest glob implementation in JavaScript.

This package provides an addon for Node.js for operations on buffers for use with WebSocket implementations. It provides efficient buffer masking and unmasking operations.

Convert milliseconds to a human readable string: `1337000000` → `15d 11h 23m 20s`

Node SerialPort is a modular suite of Node.js packages for accessing serial ports. The Guix package node-serialport provides the recommended high-level interface.

This package provides the Binding class, which uses a native addon to talk to the underlying system. You never have to use Binding objects directly. There is also a MockBinding available (but not yet packaged for Guix) to assist with testing.

Get v8 stack traces as an array of CallSite objects.

TypeScript is a language for application-scale JavaScript. TypeScript adds optional types to JavaScript that support tools for large-scale JavaScript applications for any browser, for any host, on any OS. TypeScript compiles to readable, standards-based JavaScript.

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

This package provides a JavaScript library for computing text differences, similar to Unix diff.