stunnel4 - Universal SSL tunnel for network daemons

Property Value
Distribution Ubuntu 16.04 LTS (Xenial Xerus)
Repository Ubuntu Universe i386
Package name stunnel4
Package version 5.30
Package release 1
Package architecture i386
Package type deb
Installed size 444 B
Download size 150.20 KB
Official Mirror
The stunnel program is designed to work  as  SSL  encryption
wrapper between remote client and local (inetd-startable) or
remote server. The concept is that having non-SSL aware daemons
running  on  your  system you can easily setup them to
communicate with clients over secure SSL channel.
stunnel can be used to add  SSL  functionality  to  commonly
used  inetd  daemons  like  POP-2,  POP-3  and  IMAP servers
without any changes in the programs' code.
This package contains a wrapper script for compatibility with stunnel 3.x


Package Version Architecture Repository
stunnel4_5.30-1ubuntu0.1_amd64.deb 5.30 amd64 Ubuntu Updates Universe
stunnel4_5.30-1ubuntu0.1_i386.deb 5.30 i386 Ubuntu Updates Universe
stunnel4_5.30-1_amd64.deb 5.30 amd64 Ubuntu Universe
stunnel4 - - -


Name Value
adduser -
libc6 >= 2.11
libssl1.0.0 >= 1.0.2~beta3
libsystemd0 -
libwrap0 >= 7.6-4~
netbase -
openssl -
perl -


Name Value
stunnel -


Name Value
stunnel -


Type URL
Binary Package stunnel4_5.30-1_i386.deb
Source Package stunnel4

Install Howto

  1. Update the package index:
    # sudo apt-get update
  2. Install stunnel4 deb package:
    # sudo apt-get install stunnel4




2016-01-31 - Peter Pentchev <>
stunnel4 (3:5.30-1) unstable; urgency=medium
* New upstream release:
- bump the upstream copyright years
- refresh the 02-rename-binary patch
- refresh the 10-no-zlib-compression patch (line numbers only)
* Bump the year on my debian/* copyright notice.
2016-01-08 - Peter Pentchev <>
stunnel4 (3:5.29-1) unstable; urgency=medium
* New upstream release, refresh the patches' line numbers.
2015-12-11 - Peter Pentchev <>
stunnel4 (3:5.28-1) unstable; urgency=high
* New upstream release:
- high urgency: fix a bug introduced in 3:5.27-1: if an OpenSSL
engine is used, the SSL library's initialization would not be
performed completely, skipping, for instance, the proper
initialization of the pseudo-random number generator
- refresh the patches
2015-12-04 - Peter Pentchev <>
stunnel4 (3:5.27-1) unstable; urgency=medium
* New upstream release:
- refresh the patches
- drop the 19-typos patch, applied upstream
2015-11-19 - Peter Pentchev <>
stunnel4 (3:5.26-1) unstable; urgency=medium
* New upstream version:
- drop the 14-lsb-init-functions, 18-lsb-startup, and 20-comparison
patches, applied upstream
- rework the 02-rename-binary and 10-no-zlib-compression patches
- update the 19-typos patch: the fixes within it were applied
upstream, but a couple of new typos were introduced
- refresh patches
- add the 21-author-tests patch to make the building of the Win32
binaries conditional on an environment variable and not on
the presence of the .git directory
- update the upstream copyright notice in debian/copyright
* Drop the perl-modules dependency - "perl", brought in by perl:Depends,
ought to be enough.
* Run the build in all of the source directories.  Closes: #804292
* Use an https:// URL for Vcs-Git.
2015-06-14 - Peter Pentchev <>
stunnel4 (3:5.18-1) unstable; urgency=medium
* Add the 17-upstream-hangup patch to fix prematurely closed
connections when there is still data to be written.
Thanks to Joachim Falk for backporting the patch!
Closes: #771241
* Add the 18-lsb-startup patch to make the daemons' startup consistent
with the way things are done in Debian.
Among other things, Closes: #782030
* Rework the patches a bit:
- update the description of 01-fix-paths
- move the tools/ chunk from 01-fix-paths to 02-rename-binary
- drop 08-client-example: it was actually applied upstream, no need
to add the same text twice
- drop 11-no-rle-compression: the OpenSSL bug has been fixed
somewhere in the 1.x release timeframe
* Add the 19-typos patch to fix some minor documentation typos and
rework the 02-rename-binary patch to make the change in the manual page
during the stunnel.pod -> stunnel.8 rebuild
* Add the 20-comparison patch to fix a minor logging bug.
* Remove ${misc:Pre-Depends} as explained in debhelper's #783898.
* Bump the year on my debian/* copyright notice.
* Add --parallel to the debhelper invocation.
* New upstream version:
- rework the 01-fix-paths and the 10-zlib-compression patches to
catch up with upstream updates
- refresh patches
- drop the 05-logrotate-warning-in-sample-conf patch, applied upstream
- drop the 15-upstream-systemd-libs, 16-upstream-sslv23-method, and
17-upstream-hangup patches since they were cherry-picked from
upstream to begin with
- remove handling for the dropped French manual page
2014-10-20 - Peter Pentchev <>
stunnel4 (3:5.06-2) unstable; urgency=medium
* Limit the systemd build dependency to Linux architectures only,
so that we actually give Stunnel a chance to build on kFreeBSD
or the Hurd.
* Add debian/upstream/metadata.

See Also

Package Description
stuntman-client_1.2.7-1_i386.deb Test client for STUN
stuntman-server_1.2.7-1_i386.deb Server daemon for STUN
stx-btree-demo_0.9-2build1_i386.deb b+tree implementation in c++, demo program
stx-btree-dev_0.9-2build1_all.deb b+tree implementation in c++
stx-btree-doc_0.9-2build1_all.deb b+tree implementation in c++, doxygen documentation
stx2any_1.56-2_all.deb Converter from structured plain text to other formats
stymulator_0.21a~dfsg-1build2_i386.deb Curses based player and converter for the YM chiptune format
styx-dev_2.0.1-1_i386.deb combined parser/scanner generator development files
styx-doc_2.0.1-1_all.deb combined parser/scanner generator documentation
styx_2.0.1-1_i386.deb combined parser/scanner generator for C/C++
subcommander-doc_2.0.0~b5p2-5.1_all.deb User guide for subcommander
subcommander_2.0.0~b5p2-5.1_i386.deb Graphical client for Subversion
subdownloader_2.0.18-2_all.deb subtitle download/upload manager for video files
subliminal_0.7.4-1_all.deb Command-line tool to search and download subtitles
subnetcalc_2.1.3-1ubuntu1_i386.deb IPv4/IPv6 Subnet Calculator