Stunnel Software

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Stunnel configuraton by jonnadula nanaji. 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. Version 5.57 Size 154 KB. Stunnel is a proxy designed to add SSL/TLS encryption functionality to existing client and server applications without any changes to application code. Stunnel is optimized for security and scalability, making it well-suited for large numbers of concurrent connections.


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SSL encryption wrapper

'Stunnel' works as an SSL encryption wrapper between a remote client and a local (inetd-startable) or remote server. It adds SSL functionality to commonly used inetd daemons like POP2, POP3, and IMAP servers without any changes in the programs' code. It will negotiate an SSL connection using the OpenSSL or SSLeay libraries. It calls the underlying crypto libraries, so stunnel supports whatever cryptographic algorithms you compiled into your crypto package.




Verified by



Janet Casey

29 July 2002

Leaders and contributors

Pawel Krawczyk Contributor
Brian Hatch Contributor
Michal Trojnara Maintainer
Adam Hernik Contributor
Dirk O. Siebnich Contributor

Resources and communication

AudienceResource typeURI
Debian (Ref)
HelpE-mailmailto:[email protected]
SupportE-mailmailto:[email protected]

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Software prerequisites

Required to buildOpenSSL
Weak prerequisitetcp wrappers

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

Stunnel Software Free

The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.

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