macOS
brew install ucspi-tcplocal Homebrew formula metadata
sudo port install ucspi-tcpMacPorts ports tree · net/ucspi-tcp/Portfile · Quelle: api.github.com
brew
Prüfe Installationswege, Executables, Metadaten und Sicherheitshinweise für ucspi-tcp in AI-Agent-Workflows.
Installation
brew install ucspi-tcplocal Homebrew formula metadata
sudo port install ucspi-tcpMacPorts ports tree · net/ucspi-tcp/Portfile · Quelle: api.github.com
sudo apt install ucspi-tcpDebian stable package indexes · ucspi-tcp · Quelle: deb.debian.org
nix profile install nixpkgs#ucspi-tcpnixpkgs package indexes · pkgs/by-name/uc/ucspi-tcp/package.nix · Quelle: api.github.com
sudo apk add dateAlpine Linux edge package indexes · date · Quelle: dl-cdn.alpinelinux.org
sudo dnf install date-develFedora Rawhide package metadata · date-devel · Quelle: dl.fedoraproject.org
Überblick
Tools for building TCP client-server applications
Verlauf
ucspi-tcp is Daniel J. Bernstein's Unix Client-Server Program Interface implementation for TCP. It provides small command-line tools such as tcpserver and tcpclient for building TCP services and clients around ordinary Unix programs.
The UCSPI specification is dated 1996 and defines a command-line interface for client-server communication tools. ucspi-tcp applies that model to TCP, with clients and servers setting descriptors and environment variables before executing an application.
The official install page identifies ucspi-tcp 0.88 as the latest published package, and the official tarball has a March 18, 2000 last-modified date. The project is distributed from Bernstein's cr.yp.to site rather than through a public source-control repository.
ucspi-tcp became part of the classic djb software ecosystem, especially alongside daemontools-style service supervision and qmail-era mail setups. The input package metadata shows that, despite its age and tarball distribution model, it remains packaged in Homebrew, Debian, Ubuntu, MacPorts, Nix, and other Unix package collections.
Package users most often encounter tcpserver, tcpclient, tcprules, tcprulescheck, recordio, rblsmtpd, and helper tools. The official docs describe tcpserver as a way to accept TCP connections and run another program, while rblsmtpd is documented as an SMTP wrapper that blocks mail from listed sites when used under tcpserver.
For package nerds, ucspi-tcp is historically significant because it is a compact Unix networking toolkit from the pre-systemd, pre-framework era. It represents a style where small binaries, environment variables, file-descriptor conventions, and package-manager preservation keep old but sharp infrastructure tools available.
Sicherheitslage
broad file, network, media, or database tool signal.
blue Risiko · mittel Konfidenz · tool
Prüfe vor unbeaufsichtigter Agent-Nutzung, ob das Tool Klartext-Credentials liest, Remote-Zustand schreibt, Artefakte veröffentlicht oder Plugins ausführt.
Executables
| Befehl | Art | Sichtbarkeit | Hinweis |
|---|---|---|---|
addcr | cli | globales Executable | |
argv0 | cli | globales Executable | |
date@ | cli | globales Executable | |
delcr | cli | globales Executable | |
finger@ | cli | globales Executable | |
fixcrio | cli | globales Executable | |
http@ | cli | globales Executable | |
mconnect | cli | globales Executable | |
mconnect-io | cli | globales Executable | |
rblsmtpd | cli | globales Executable | |
recordio | cli | globales Executable | |
tcpcat | cli | globales Executable | |
tcpclient | cli | globales Executable | |
tcprules | cli | globales Executable | |
tcprulescheck | cli | globales Executable | |
tcpserver | cli | globales Executable | |
who@ | cli | globales Executable |
Aktualität
Diese Signale trennen das Alter der Seitengenerierung, Aktivität des Paketmanagers und Upstream-Release-Vergleich. Versionsrückstand wird nur gemeldet, wenn eine Evidenz-URL und vergleichbare Versionen vorhanden sind.
https://cr.yp.to/ucspi-tcp.html
Installationsmetadaten
| Paketschlüssel | brew:ucspi-tcp |
|---|---|
| Version | 0.88 |
| Paketmanager | Homebrew |
| Paketmanager-Seite | https://formulae.brew.sh/formula/ucspi-tcp |
| Homepage | https://cr.yp.to/ucspi-tcp.html |
| Upstream-Dokumentation | https://cr.yp.to/ucspi-tcp.html |
| Lizenz | LicenseRef-Homebrew-public-domain |
| Quellarchiv | https://cr.yp.to/ucspi-tcp/ucspi-tcp-0.88.tar.gz |
| Zuletzt aktualisiert | 2026-07-14T20:07:12+09:00 |
| Pulse | updated |
| Bottle | verfügbar (auf arm64_big_sur, arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, big_sur, catalina, monterey, sonoma, ventura, x86_64_linux) |
| Homebrew post-install | nicht definiert |
| Dienst | keiner deklariert |
Registry-Fakten
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | ucspi-tcp |
| Version Scheme | 0 |
| Revision | 0 |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
Source-Datenbank-Treffer
Treffer stammen aus externen Paketmanager-Indizes und bleiben von lokalen Automic-Vault-Paketlinks getrennt.
ucspi-tcp 1:0.88-13
command-line tools for building TCP client-server applications
sudo apt install ucspi-tcpucspi-tcp-ipv6 1:0.88-13
command-line tools for building TCP client-server applications (IPv6)
sudo apt install ucspi-tcp-ipv6ucspi-tcp
nix profile install nixpkgs#ucspi-tcpucspi-tcp 1:0.88-8ubuntu1
command-line tools for building TCP client-server applications
sudo apt install ucspi-tcpucspi-tcp-ipv6 1:0.88-8ubuntu1
command-line tools for building TCP client-server applications (IPv6)
sudo apt install ucspi-tcp-ipv6ucspi-tcp
sudo port install ucspi-tcpfinger 0.17-17
user information lookup program
http://ftp.linux.org.uk/pub/linux/Networking/netkit/
sudo apt install fingerr-cran-date 1.2.42-1
GNU R package for date handling
https://cran.r-project.org/package=date
sudo apt install r-cran-datefinger 0.17-17
user information lookup program
http://ftp.linux.org.uk/pub/linux/Networking/netkit/
sudo apt install fingerr-cran-date 1.2.42-1
GNU R package for date handling
https://cran.r-project.org/package=date
sudo apt install r-cran-datedate 3.0.4-r0
Date and time library based on the C++11/14/17 <chrono> header
https://howardhinnant.github.io/date/date.html
sudo apk add datedate-dev 3.0.4-r0
Date and time library based on the C++11/14/17 <chrono> header (development files)
https://howardhinnant.github.io/date/date.html
sudo apk add date-devfinger 0.5-r0
Small, simple, and portable finger client and server
sudo apk add fingerfinger-doc 0.5-r0
Small, simple, and portable finger client and server (documentation)
sudo apk add finger-docdate-devel 3.0.4-3.fc44
Date and time library based on the C++11/14/17 <chrono> header
https://github.com/HowardHinnant/date
sudo dnf install date-develfinger 0.17-83.fc44
The finger client
sudo dnf install fingerQuellspur
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View the package source record on GitHub.