# Install h2o

HTTP server with support for HTTP/1.x and HTTP/2. Version 2.2.6 via Homebrew; verified from local package data.

## Install

```sh
sudo av install brew:h2o
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install h2o
```

  Evidence: local Homebrew formula metadata

- MacPorts (94%):

```sh
sudo port install h2o
```

  Evidence: MacPorts ports tree: www/h2o/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

### Linux

- Nix (92%):

```sh
nix profile install nixpkgs#h2o
```

  Evidence: nixpkgs package indexes: pkgs/by-name/h2/h2o/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

- Ubuntu apt (92%):

```sh
sudo apt install h2o
```

  Evidence: Ubuntu 24.04 LTS package indexes: h2o from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz

## Package Facts

- **Package key:** brew:h2o
- **Package manager:** Homebrew
- **Package manager URL:** <https://formulae.brew.sh/formula/h2o>
- **Version:** 2.2.6
- **Source summary:** HTTP server with support for HTTP/1.x and HTTP/2
- **Homepage:** <https://github.com/h2o/h2o/>
- **Repository:** <https://github.com/h2o/h2o>
- **Upstream docs:** <https://github.com/h2o/h2o#readme>
- **License:** MIT
- **Source archive:** <https://github.com/h2o/h2o/archive/refs/tags/v2.2.6.tar.gz>
- **Generated:** 2026-06-10T07:18:26+00:00

## Executables

- h2o (cli)
- h2o (alias)

## Dependencies

- openssl@3

## Build Dependencies

- cmake
- pkgconf

## Install Behavior

- Post-install hook: not defined
- Service: declared
- Caveats: A basic example configuration file has been placed in $HOMEBREW_PREFIX/etc/h2o. You can find fuller, unmodified examples in $HOMEBREW_PREFIX/opt/h2o/share/h2o/examples.
- Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux

## Freshness

- Page generated: 2026-06-10
- Package-manager version: 2.2.6
- Local data status: ok
- Upstream repository: https://github.com/h2o/h2o
- Upstream latest detected: v2.2.6 (current)
- info: No package-manager update timestamp was available.

## 安全说明

broad file, network, media, or database tool signal. formula declares a Homebrew service.

- **Geiger risk:** orange / medium
- broad file, network, media, or database tool signal
- formula declares a Homebrew service

## Source Database Details

- **Source Database:** Homebrew formula API
- **Tap:** homebrew/core
- **Full Name:** h2o
- **Version Scheme:** 0
- **Revision:** 3
- **Bottle Stable Root URL:** <https://ghcr.io/v2/homebrew/core>
- **Deprecated:** yes
- **Disabled:** no
- **Keg Only:** no
- **URL Keys:** stable

## Other Package-Manager Records

- Nix - h2o: normalized package name match | nixpkgs package indexes: pkgs/by-name/h2/h2o/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- Ubuntu apt - h2o - 2.2.5+dfsg2-8.1ubuntu3: normalized package name match | Ubuntu 24.04 LTS package indexes: h2o from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | optimized HTTP/1.x, HTTP/2 server | https://h2o.examp1e.net
- Ubuntu apt - h2o-doc - 2.2.5+dfsg2-8.1ubuntu3: normalized package name match | Ubuntu 24.04 LTS package indexes: h2o-doc from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | optimized HTTP/1.x, HTTP/2 server - documentation | https://h2o.examp1e.net
- Ubuntu apt - libh2o-dev - 2.2.5+dfsg2-8.1ubuntu3: normalized package name match | Ubuntu 24.04 LTS package indexes: libh2o-dev from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | dev helpers of the H2O library compiled with libuv | https://h2o.examp1e.net
- Ubuntu apt - libh2o-dev-common - 2.2.5+dfsg2-8.1ubuntu3: normalized package name match | Ubuntu 24.04 LTS package indexes: libh2o-dev-common from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | H2O library headers | https://h2o.examp1e.net
- Ubuntu apt - libh2o-evloop-dev - 2.2.5+dfsg2-8.1ubuntu3: normalized package name match | Ubuntu 24.04 LTS package indexes: libh2o-evloop-dev from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | dev helpers of the H2O library compiled with its own event loop | https://h2o.examp1e.net
- Ubuntu apt - libh2o-evloop0.13t64 - 2.2.5+dfsg2-8.1ubuntu3: normalized package name match | Ubuntu 24.04 LTS package indexes: libh2o-evloop0.13t64 from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | H2O library compiled with its own event loop | https://h2o.examp1e.net
- Ubuntu apt - libh2o0.13t64 - 2.2.5+dfsg2-8.1ubuntu3: normalized package name match | Ubuntu 24.04 LTS package indexes: libh2o0.13t64 from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | H2O library compiled with libuv | https://h2o.examp1e.net
- MacPorts - h2o: normalized package name match | MacPorts ports tree: www/h2o/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1


## Related Links

- [Source-control packages](https://www.automicvault.com/zh-hans/pkg/source-control-tools/) - Belongs to a source-control command family.
- [Secret-risk packages](https://www.automicvault.com/zh-hans/pkg/secret-risk-packages/) - Has protected-tool coverage, approval-gate, or non-low Geiger security signals.
- [Terminal utility packages](https://www.automicvault.com/zh-hans/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata.
- [Networking and protocol packages](https://www.automicvault.com/zh-hans/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata.
- [openssl@3](https://www.automicvault.com/zh-hans/pkg/brew/openssl-3/) - Runtime dependency declared by Homebrew.
- [pkgconf](https://www.automicvault.com/zh-hans/pkg/brew/pkgconf/) - Build dependency declared by Homebrew.
- [cmake](https://www.automicvault.com/zh-hans/pkg/brew/cmake/) - Build dependency declared by Homebrew.
- [nginx](https://www.automicvault.com/zh-hans/pkg/brew/nginx/) - Shares av.db curated category or tags: cli, http, networking, web-server.
- [httpd](https://www.automicvault.com/zh-hans/pkg/brew/httpd/) - Shares av.db curated category or tags: cli, http, networking, web-server.
- [mongoose](https://www.automicvault.com/zh-hans/pkg/brew/mongoose/) - Shares av.db curated category or tags: c, cli, networking, web-server.
- [static-web-server](https://www.automicvault.com/zh-hans/pkg/brew/static-web-server/) - Shares av.db curated category or tags: cli, http, networking, web-server.
- [ferron](https://www.automicvault.com/zh-hans/pkg/brew/ferron/) - Shares av.db curated category or tags: cli, http, networking, web-server.
- [algernon](https://www.automicvault.com/zh-hans/pkg/brew/algernon/) - Shares av.db curated category or tags: cli, http2, networking, web-server.
- [yaws](https://www.automicvault.com/zh-hans/pkg/brew/yaws/) - Shares av.db curated category or tags: cli, http, networking, web-server.
- [caddy](https://www.automicvault.com/zh-hans/pkg/brew/caddy/) - Shares av.db curated category or tags: cli, networking, web-server.
- [proxygen](https://www.automicvault.com/zh-hans/pkg/brew/proxygen/) - Local metadata places this package in an adjacent workflow. Shared terms: cli, http, http2, http3, networking.

## Sources

- Nucleus package database
- Geiger risk classifier
- package-page enrichment
- package version freshness
- av.db category and tag curation
- package relationship graph
- external package-manager database matches
- cross-ecosystem install command graph