# Install stunnel

SSL tunneling program. Version 5.78 via Homebrew; verified 2026-04-09.

## Install

```sh
sudo av install brew:stunnel
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install stunnel
```

  Evidence: local Homebrew formula metadata

- MacPorts (94%):

```sh
sudo port install stunnel
```

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

### Linux

- apk (92%):

```sh
sudo apk add stunnel
```

  Evidence: Alpine Linux edge package indexes: stunnel from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz

- dnf (92%):

```sh
sudo dnf install stunnel
```

  Evidence: Fedora Rawhide package metadata: stunnel from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/13ee7b80cb813542594d4235c4a0b8695435d5ecf23dd3580bc7515ae1b6180d-primary.xml.zst

- Nix (92%):

```sh
nix profile install nixpkgs#stunnel
```

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

- pacman (92%):

```sh
sudo pacman -S stunnel
```

  Evidence: Arch Linux sync databases: stunnel from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz

- zypper (92%):

```sh
sudo zypper install stunnel
```

  Evidence: openSUSE Tumbleweed package metadata: stunnel from https://download.opensuse.org/tumbleweed/repo/oss/repodata/155b97171d05e27afd950b6fe0d55513ff38f4597110664535bceedc680bbe6fd459f0733718dcc21dcf0efc7c8250fd1390c73d4790b42e62fb2c16a87242e5-primary.xml.zst

### Windows

- Chocolatey (92%):

```sh
choco install stunnel
```

  Evidence: Chocolatey community package catalog: stunnel from http://community.chocolatey.org/api/v2/Packages?$filter=IsLatestVersion&$select=Id&$top=1000&$skiptoken='11','steelseries-engine'

- Scoop (92%):

```sh
scoop install extras/stunnel
```

  Evidence: Scoop official bucket manifest trees: bucket/stunnel.json from https://api.github.com/repos/ScoopInstaller/Extras/git/trees/master?recursive=1

- winget (92%):

```sh
winget install --id MichalTrojnara.Stunnel -e
```

  Evidence: Windows Package Manager source index: MichalTrojnara.Stunnel from https://cdn.winget.microsoft.com/cache/source.msix

## Package Facts

- **Package key:** brew:stunnel
- **Package manager:** Homebrew
- **Package manager URL:** <https://formulae.brew.sh/formula/stunnel>
- **Version:** 5.78
- **Source summary:** SSL tunneling program
- **Homepage:** <https://www.stunnel.org/>
- **Upstream docs:** <https://www.stunnel.org/docs.html>
- **License:** GPL-2.0-or-later
- **Source archive:** <https://www.stunnel.org/downloads/stunnel-5.78.tar.gz>
- **Last updated:** 2026-04-09T18:28:06Z
- **Generated:** 2026-06-10T07:18:26+00:00

## Executables

- stunnel (cli)
- stunnel3 (cli)
- stunnel (alias)
- stunnel3 (alias)

## Dependencies

- openssl@3

## Install Behavior

- Post-install hook: not defined
- Service: declared
- Caveats: A bogus SSL server certificate has been installed to: $HOMEBREW_PREFIX/etc/stunnel/stunnel.pem This certificate will be used by default unless a config file says otherwise! Stunnel will refuse to load the sample configuration file if left unedited. In your stunnel configuration, specify a SSL certificate with the "cert =" option for each service. To use Stunnel with Homebrew services, make sure to set "foreground = yes" in your Stunnel configuration.
- Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux

## Freshness

- Page generated: 2026-06-10
- Package-manager version: 5.78
- Package-manager updated: 2026-04-09
- Local data status: ok
- Upstream repository: https://www.stunnel.org/
- info: Release/tag comparison is only available for GitHub repositories.

## Notes de sécurité

formula declares a Homebrew service.

- **Geiger risk:** orange / medium
- formula declares a Homebrew service

## Source Database Details

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

## Other Package-Manager Records

- Nix - stunnel: normalized package name match | nixpkgs package indexes: pkgs/by-name/st/stunnel/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- apk - stunnel - 5.76-r0: normalized package name match | Alpine Linux edge package indexes: stunnel from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | SSL encryption wrapper between network client and server | https://www.stunnel.org
- apk - stunnel-doc - 5.76-r0: normalized package name match | Alpine Linux edge package indexes: stunnel-doc from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | SSL encryption wrapper between network client and server (documentation) | https://www.stunnel.org
- apk - stunnel-openrc - 5.76-r0: normalized package name match | Alpine Linux edge package indexes: stunnel-openrc from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | SSL encryption wrapper between network client and server (OpenRC init scripts) | https://www.stunnel.org
- apk - stunnel3 - 5.76-r0: normalized package name match | Alpine Linux edge package indexes: stunnel3 from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | Perl wrapper to use stunnel 3.x syntax in stunnel >=4.05 | https://www.stunnel.org
- dnf - stunnel - 5.78-1.fc45: normalized package name match | Fedora Rawhide package metadata: stunnel from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/13ee7b80cb813542594d4235c4a0b8695435d5ecf23dd3580bc7515ae1b6180d-primary.xml.zst | A TLS-encrypting socket wrapper | https://www.stunnel.org/
- pacman - stunnel - 5.78-1: normalized package name match | Arch Linux sync databases: stunnel from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz | A program that allows you to encrypt arbitrary TCP connections inside SSL | https://www.stunnel.org/
- zypper - stunnel - 5.78-1.1: normalized package name match | openSUSE Tumbleweed package metadata: stunnel from https://download.opensuse.org/tumbleweed/repo/oss/repodata/155b97171d05e27afd950b6fe0d55513ff38f4597110664535bceedc680bbe6fd459f0733718dcc21dcf0efc7c8250fd1390c73d4790b42e62fb2c16a87242e5-primary.xml.zst | Universal TLS Tunnel | https://www.stunnel.org/
- zypper - stunnel-doc - 5.78-1.1: normalized package name match | openSUSE Tumbleweed package metadata: stunnel-doc from https://download.opensuse.org/tumbleweed/repo/oss/repodata/155b97171d05e27afd950b6fe0d55513ff38f4597110664535bceedc680bbe6fd459f0733718dcc21dcf0efc7c8250fd1390c73d4790b42e62fb2c16a87242e5-primary.xml.zst | Documentation for the universal TLS Tunnel | https://www.stunnel.org/
- MacPorts - stunnel: normalized package name match | MacPorts ports tree: security/stunnel/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1
- Chocolatey - stunnel: normalized package name match | Chocolatey community package catalog: stunnel from http://community.chocolatey.org/api/v2/Packages?$filter=IsLatestVersion&$select=Id&$top=1000&$skiptoken='11','steelseries-engine'
- Scoop - extras/stunnel: normalized package name match | Scoop official bucket manifest trees: bucket/stunnel.json from https://api.github.com/repos/ScoopInstaller/Extras/git/trees/master?recursive=1
- winget - MichalTrojnara.Stunnel: normalized package name match | Windows Package Manager source index: MichalTrojnara.Stunnel from https://cdn.winget.microsoft.com/cache/source.msix


## Related Links

- [Secret-risk packages](https://www.automicvault.com/fr/pkg/secret-risk-packages/) - Has protected-tool coverage, approval-gate, or non-low Geiger security signals.
- [Terminal utility packages](https://www.automicvault.com/fr/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata.
- [Networking and protocol packages](https://www.automicvault.com/fr/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata.
- [Security and crypto packages](https://www.automicvault.com/fr/pkg/security-crypto-tools/) - Matched security, identity, cryptography, password, signing, or certificate metadata.
- [openssl@3](https://www.automicvault.com/fr/pkg/brew/openssl-3/) - Runtime dependency declared by Homebrew.
- [gnutls](https://www.automicvault.com/fr/pkg/brew/gnutls/) - Shares av.db curated category or tags: cli, security, ssl, tls.
- [libressl](https://www.automicvault.com/fr/pkg/brew/libressl/) - Shares av.db curated category or tags: cli, security, ssl, tls.
- [wolfssl](https://www.automicvault.com/fr/pkg/brew/wolfssl/) - Shares av.db curated category or tags: cli, security, ssl, tls.
- [tlsx](https://www.automicvault.com/fr/pkg/brew/tlsx/) - Shares av.db curated category or tags: cli, security, ssl, tls.
- [nss](https://www.automicvault.com/fr/pkg/brew/nss/) - Shares av.db curated category or tags: cli, security, tls.
- [gsan](https://www.automicvault.com/fr/pkg/brew/gsan/) - Shares av.db curated category or tags: cli, security, tls.
- [mbedtls](https://www.automicvault.com/fr/pkg/brew/mbedtls/) - Shares av.db curated category or tags: cli, security, ssl, tls.
- [sslscan](https://www.automicvault.com/fr/pkg/brew/sslscan/) - Shares av.db curated category or tags: cli, security, ssl, tls.
- [ssldump](https://www.automicvault.com/fr/pkg/brew/ssldump/) - Security-sensitive metadata or terminology overlaps. Shared terms: cli, openssl, openssl-3, security, ssl.
- [sslsplit](https://www.automicvault.com/fr/pkg/brew/sslsplit/) - Security-sensitive metadata or terminology overlaps. Shared terms: cli, openssl, openssl-3, security, ssl.

## 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