安装

其他安装命令

macOS

Homebrew已验证 · 100%

brew install telnetd

local Homebrew formula metadata

Linux

Debian apt已验证 · 92%

sudo apt install telnetd

Debian stable package indexes · telnetd · 来源: deb.debian.org

概览

软件包摘要

TELNET server

项目链接

命令和别名

本地软件包数据库中没有找到可执行别名。

历史

项目历史与用法

telnetd is the server-side daemon for the TELNET virtual terminal protocol. The Apple-distributed BSD manpage describes it as a DARPA TELNET protocol server normally invoked by `inetd` for requests to the TELNET port listed in `/etc/services`.

项目历史

Like the client, telnetd belongs to the BSD TCP/IP remote-command family, with University of California copyright dates beginning in 1983. Its manual history and FreeBSD provenance show the daemon as operating-system infrastructure rather than a new standalone application.

The daemon implements the protocol standardized by RFC 854 and the option negotiation system documented by RFC 855. The manpage describes support for line mode, authentication modes when compiled in, optional encryption debugging, TCP keep-alives, TOS settings, alternate login programs, and manual debug startup.

采用历史

telnetd was historically the server counterpart to the ubiquitous telnet client and was commonly launched from an internet super-server. As secure shell became the expected remote-login mechanism, telnetd moved from default infrastructure to an optional package used for legacy environments, labs, embedded-device testing, and protocol compatibility.

Its narrower package-manager footprint compared with the telnet client reflects that shift: installing a TELNET server is operationally riskier and less common than keeping a TELNET client for diagnostics.

使用方式

The manpage says telnetd is normally invoked by `inetd`, but can be started manually with debugging enabled and an alternate TCP port. It delegates user verification to `login` unless authentication support and stricter modes are configured.

In the package-nerd niche, telnetd is mostly used to recreate old Unix remote-login behavior, test TELNET option negotiation, exercise clients, or run controlled legacy services. It is rarely a recommended production remote-access daemon.

为什么软件包爱好者会关心

telnetd is significant as the daemon half of one of the Internet's oldest terminal protocols. Its optional packaging documents the post-SSH fate of insecure network daemons: retained for compatibility and testing, but separated from default installs.

The formula is also useful to people studying inetd-era service activation, terminal negotiation, and the historical relationship between network daemons, `/etc/services`, and login programs.

时间线

1983: RFC 854 standardized TELNET.
1983: RFC 855 specified TELNET option documentation and assignment.
1983-1994: BSD telnetd manpage lineage records University of California copyrights and Berkeley manual revisions.
2005: FreeBSD provenance in the manpage reflects continued maintenance of the BSD-derived daemon.

Related projects

telnet is the companion client.
inetd and login are part of the traditional operating-system context in which telnetd runs.
sshd replaced telnetd for secure interactive remote login on modern systems.

来源

https://github.com/apple-oss-distributions/remote_cmds/blob/main/telnetd/telnetd.8
https://www.rfc-editor.org/rfc/rfc854.txt
https://www.rfc-editor.org/rfc/rfc855.txt
source_facts.package-manager

安全态势

尚未找到受保护工具覆盖

没有找到 telnetd 的匹配本地密钥处理 manifest。Nucleus 软件包元数据仍在此发布，以便未来覆盖拥有稳定的软件包 URL。

安装行为

formula 元数据中未记录 Homebrew post-install 钩子。
Homebrew bottle 元数据适用于 4 个平台目标。

建议审查

在无人值守的代理使用前，请检查该工具是否读取明文凭据、写入远程状态、发布制品或调用插件。

local files

Configuration and credential file locations

These source-backed paths show where this package keeps local settings or durable credentials. Automic Vault can use them as review targets for secret scanning, migration, and command approval.

Configuration files

Config paths the tool may read or write during local use.

Unix: /etc/services/etc/gettytab/etc/iptos

可执行文件

已安装的可执行文件

命令	类型	暴露范围	备注
没有可执行文件数据。

新鲜度

版本和新鲜度

这些信号区分页生成时间、软件包管理器活动和上游发布比较。只有存在证据 URL 和可比较版本时，才会提示版本落后。

页面生成时间2026-07-25

管理器版本308

管理器更新时间

本地数据OK

上游not checked

信息No package-manager update timestamp was available.低置信度
信息No cached GitHub release or tag data was available.https://github.com/apple-oss-distributions/remote_cmdsnone 置信度

安装元数据

软件包元数据

软件包键	brew:telnetd
版本	308
软件包管理器	Homebrew
软件包管理器页面	https://formulae.brew.sh/formula/telnetd
主页	https://opensource.apple.com/
仓库	https://github.com/apple-oss-distributions/remote_cmds
上游文档	https://github.com/apple-oss-distributions/remote_cmds/blob/main/telnetd/telnetd.8
许可证	BSD-4-Clause-UC AND BSD-3-Clause
源码归档	https://github.com/apple-oss-distributions/remote_cmds/archive/refs/tags/remote_cmds-308.tar.gz
Bottle	可用 (于 arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma)
Homebrew post-install	未定义
服务	未声明
注意事项	You may need super-user privileges to run this program properly. See the man page for more details.

注册表事实

源数据库详情

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	telnetd
Version Scheme	0
Revision	0
Requirements	macos xcode
Bottle Stable Root URL	https://ghcr.io/v2/homebrew/core
Deprecated	no
Disabled	no
Keg Only	no
URL Keys	stable

源数据库匹配

其他软件包管理器记录

匹配项来自外部软件包管理器索引，并与本地 Automic Vault 软件包链接分开显示。

Debian apt95%

telnetd 0.17+2.6-3+deb13u3

transitional dummy package for inetutils-telnetd default switch

https://www.gnu.org/software/inetutils/

sudo apt install telnetd

Section: oldlibs
Architecture: all
Source Package: inetutils
2 依赖
normalized package name match
匹配方式：Telnetd

Debian stable package indexes · deb.debian.org · Debian stable package indexes: telnetd from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz

Ubuntu apt95%

telnetd 0.17+2.5-3ubuntu4

transitional dummy package for inetutils-telnetd default switch

https://www.gnu.org/software/inetutils/

sudo apt install telnetd

Section: universe/net
Architecture: all
Source Package: inetutils
2 依赖
normalized package name match
匹配方式：Telnetd

Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: telnetd from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz

软件包图谱

链接来自本地软件包关系图、补充数据、依赖边、生态匹配和软件包 hub 归属。

来源线索

由仓库数据生成

此页面由 av-web 从 scripts/generate-pkg-sqlite.py 生成的私有软件包 SQLite 工件提供。

Combined YAML source

View the package source record on GitHub.

combined/telnetd.yml

使用的来源

Nucleus package database
av.db category and tag curation
cross-ecosystem install command graph
curated configuration and credential file locations
curated package history
external package-manager database matches
package relationship graph
package version freshness
package-page enrichment

使用 Homebrew, apt 安装 telnetd