# 使用 Homebrew, Nix 安装 libprotoident

查看 libprotoident 的安装路径、可执行文件、元数据以及面向 AI 代理工作流的安全说明。

## 安装

```sh
sudo av install brew:libprotoident
```

其他安装命令:

### macOS

- Homebrew (100%):

```sh
brew install libprotoident
```

  证据: local Homebrew formula metadata

### Linux

- Nix (92%):

```sh
nix profile install nixpkgs#libprotoident
```

  证据: nixpkgs package indexes: pkgs/by-name/li/libprotoident/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

## 软件包事实

- **软件包键:** brew:libprotoident
- **软件包管理器:** Homebrew
- **版本:** 2.0.15-2
- **来源摘要:** Performs application layer protocol identification for flows
- **主页:** <https://github.com/LibtraceTeam/libprotoident>
- **仓库:** <https://github.com/LibtraceTeam/libprotoident>
- **已生成:** 2026-08-03T19:37:03+00:00

## 可执行文件

- lpi_arff (别名)
- lpi_find_unknown (别名)
- lpi_protoident (别名)

## 安装行为

- Bottle: 不可用

## 版本和新鲜度

- 页面生成时间: 2026-08-03
- 管理器版本: 2.0.15-2
## 项目历史与用法

libprotoident is a lightweight network-traffic classification library from the University of Waikato WAND research group. Its niche is application protocol identification using only a small amount of payload from each direction of a flow.

### 项目历史

The source headers credit the University of Waikato WAND research group and carry copyright years beginning in 2011. The public GitHub repository was created on 2014-03-20, and the README identifies Shane Alcock as author with additional contributors.

The project frames itself as a deliberately limited form of deep packet inspection: it uses the first four bytes of application payload sent in each direction, plus flow metadata, instead of requiring complete packet payload capture.

### 采用历史

libprotoident's adoption is concentrated in packet-trace and traffic-analysis circles rather than broad application development. Its README ties it to `libtrace` and `libflowmanager`, and its bundled tools operate on libtrace trace URIs, including live network-interface sources.

### 使用方式

The package provides a library API plus command-line tools: `lpi_protoident` identifies flows, `lpi_find_unknown` reports unidentified flows to aid new rule development, and `lpi_arff` emits ARFF output for Weka workflows.

### 为什么软件包爱好者会关心

For package maintainers, libprotoident is interesting because it sits between academic network measurement and practical CLI tooling. It pulls in the LibtraceTeam stack and gives users a packaged way to run protocol classification experiments without building the WAND tools by hand.

### 时间线

- 2011: Source headers identify University of Waikato WAND work beginning in this period.
- 2014-03-20: The public GitHub repository was created.
- 2017-06-28: Version 2.0.11 added many protocols and moved tools to parallel libtrace and libflowmanager 3 compatibility.
- 2020-11-12: Version 2.0.15 added protocols, an industrial-control-systems category, and category lookup APIs.

### Related projects

- libtrace, libflowmanager, Weka, packet-trace analysis tools, and other traffic-classification projects such as nDPI and Zeek occupy adjacent space.

### 来源

- <https://api.github.com/repos/LibtraceTeam/libprotoident>
- <https://api.github.com/repos/LibtraceTeam/libprotoident/releases>
- <https://github.com/LibtraceTeam/libprotoident>
- <https://raw.githubusercontent.com/LibtraceTeam/libprotoident/master/README>
- <https://raw.githubusercontent.com/LibtraceTeam/libprotoident/master/lib/libprotoident.h>


## 安全说明

library-like package without higher-risk signals.

- **Geiger 风险:** 绿色 / 低
- library-like package without higher-risk signals

## 其他软件包管理器记录

- Nix - libprotoident: normalized package name match | nixpkgs package indexes: pkgs/by-name/li/libprotoident/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1


## Combined YAML source

View the package source record on GitHub. [combined/libprotoident.yml](https://github.com/mxcl/pkgdb/blob/main/combined/libprotoident.yml)


## 来源

- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph