Linux workstation

Upstream software project

stunnel4

SSL encryption wrapper between network client and server

About stunnel4

SSL encryption wrapper between network client and server

This project links 20 native package records across 10 recorded operating-system releases. Compare the retained versions and architectures below, then open the package for your own release.

These are catalog observations, not a guarantee of installation, compatibility, or upstream support.

Visit project website

Project pictures and package coverage

Alpine Linux 3.21: 3 package records; Alpine Linux 3.22: 3 package records; Alpine Linux 3.23: 4 package records; Debian 12 (Bookworm): 1 package records; Debian 13 (Trixie): 1 package records; Fedora 43: 1 package records; Fedora 44: 1 package records; openSUSE Leap 15.6: 2 package records; openSUSE Leap 16.0: 2 package records; openSUSE Tumbleweed: 2 package records. Catalog coverage diagram, not an application screenshot.stunnel4: recorded package coverageAlpine Linux 3.213 recordsAlpine Linux 3.223 recordsAlpine Linux 3.234 recordsDebian 12 (Bookworm)1 recordsDebian 13 (Trixie)1 recordsFedora 431 recordsFedora 441 recordsopenSUSE Leap 15.62 records
OpenFactory diagram of linked package records. The first eight releases are shown; all 10 appear below. It is not an application screenshot.

Project identity

Project
stunnel4
Publisher
Not authoritatively mapped
Native package records
20
Operating systems
alpine-linux-3-21, alpine-linux-3-22, alpine-linux-3-23, debian-12, debian-13, fedora-43, fedora-44, opensuse-leap-15-6, opensuse-leap-16-0, opensuse-tumbleweed
License expression
GPL-2.0-or-later WITH OpenSSL-Exception
Metadata completeness
70/100 (not a software quality rating)
Homepage
Visit upstream site
Source repository
Not reported

Source-reported description

The fullest retained description is shown with its source. Distribution packaging descriptions may include downstream details.

Stunnel is a proxy designed to add TLS encryption functionality to existing clients and servers without any changes in the programs' code. Its architecture is optimized for security, portability, and scalability (including load-balancing), making it suitable for large deployments.

Description source

Packages by operating system

Compare recorded versions, then open a package for dependency, file, checksum, and repository evidence. Version strings are distribution-specific, not a ranking of newer software.

Alpine Linux 3.21

  1. stunnel

    Alpine Linux 3.21 / source stunnel

    5.74-r0

    SSL encryption wrapper between network client and server

    aarch64x86_64v3.21
  2. stunnel-doc

    Alpine Linux 3.21 / source stunnel

    5.74-r0

    SSL encryption wrapper between network client and server (documentation)

    aarch64x86_64v3.21
  3. stunnel-openrc

    Alpine Linux 3.21 / source stunnel

    5.74-r0

    SSL encryption wrapper between network client and server (OpenRC init scripts)

    aarch64x86_64v3.21

Alpine Linux 3.22

  1. stunnel

    Alpine Linux 3.22 / source stunnel

    5.75-r0

    SSL encryption wrapper between network client and server

    aarch64x86_64v3.22
  2. stunnel-doc

    Alpine Linux 3.22 / source stunnel

    5.75-r0

    SSL encryption wrapper between network client and server (documentation)

    aarch64x86_64v3.22
  3. stunnel-openrc

    Alpine Linux 3.22 / source stunnel

    5.75-r0

    SSL encryption wrapper between network client and server (OpenRC init scripts)

    aarch64x86_64v3.22

Alpine Linux 3.23

  1. stunnel

    Alpine Linux 3.23 / source stunnel

    5.76-r0

    SSL encryption wrapper between network client and server

    aarch64x86_64v3.23
  2. stunnel3

    Alpine Linux 3.23 / source stunnel

    5.76-r0

    Perl wrapper to use stunnel 3.x syntax in stunnel >=4.05

    aarch64x86_64v3.23
  3. stunnel-doc

    Alpine Linux 3.23 / source stunnel

    5.76-r0

    SSL encryption wrapper between network client and server (documentation)

    aarch64x86_64v3.23
  4. stunnel-openrc

    Alpine Linux 3.23 / source stunnel

    5.76-r0

    SSL encryption wrapper between network client and server (OpenRC init scripts)

    aarch64x86_64v3.23

Debian 12 (Bookworm)

  1. stunnel4

    Debian 12 (Bookworm) / net

    3:5.68-2+deb12u1

    Universal SSL tunnel for network daemons

    amd64arm64bookworm

Debian 13 (Trixie)

  1. stunnel4

    Debian 13 (Trixie) / net

    3:5.74-2

    Universal SSL tunnel for network daemons

    amd64arm64trixie

Fedora 43

  1. stunnel

    Fedora 43 / Unspecified / source stunnel

    5.80-1.fc43

    A TLS-encrypting socket wrapper

    aarch64x86_6443

Fedora 44

  1. stunnel

    Fedora 44 / Unspecified / source stunnel

    5.80-1.fc44

    A TLS-encrypting socket wrapper

    aarch64x86_6444

openSUSE Leap 15.6

  1. stunnel

    openSUSE Leap 15.6 / Productivity/Networking/Security / source stunnel

    5.70-150600.1.9

    Universal TLS Tunnel

    aarch64ppc64les390xx86_64leap-15.6
  2. stunnel-doc

    openSUSE Leap 15.6 / Documentation/Other / source stunnel

    5.70-150600.1.9

    Documentation for the universal TLS Tunnel

    noarchleap-15.6

openSUSE Leap 16.0

  1. stunnel

    openSUSE Leap 16.0 / Productivity/Networking/Security / source stunnel

    5.74-160000.2.2

    Universal TLS Tunnel

    aarch64ppc64les390xx86_64leap-16.0
  2. stunnel-doc

    openSUSE Leap 16.0 / Documentation/Other / source stunnel

    5.74-160000.2.2

    Documentation for the universal TLS Tunnel

    noarchleap-16.0

openSUSE Tumbleweed

  1. stunnel

    openSUSE Tumbleweed / Productivity/Networking/Security / source stunnel

    5.80-1.1

    Universal TLS Tunnel

    x86_64tumbleweed
  2. stunnel-doc

    openSUSE Tumbleweed / Documentation/Other / source stunnel

    5.80-1.1

    Documentation for the universal TLS Tunnel

    noarchtumbleweed

Project resources and further reading

Mapping provenance

Only source-backed identity signals create public cross-OS links. A reviewer can later approve or dispute an inferred relationship without rewriting native package history.

No field-level source record is published yet.