Product Information
What is Stunnel?
The stunnel program is designed as an SSL encryption wrapper between remote clients and local (inetd-startable) or remote servers. It can be used to add SSL functionality to commonly used inetd daemons, such as POP2, POP3, and IMAP servers, without requiring any changes to the program's code. It negotiates SSL connections using the OpenSSL or SSLeay libraries. By invoking the underlying cryptographic libraries, stunnel supports any encryption algorithm that you compile into the cryptographic package.
How to use Stunnel?
Stunnel is an SSL/TLS encryption wrapper or proxy designed to add encryption capabilities to existing clients and servers without modifying their code. It enhances communication security by providing an encryption layer between remote clients and local/remote servers.
Core Functions of Stunnel
SSL
Usage Scenarios of Stunnel
- Add SSL functionality to inetd daemons like POP2, POP3, and IMAP servers.
- Add TLS encryption to existing clients and servers.
- Provide SSL-encrypted tunneling between remote clients and local/remote servers.
- Ideal for large-scale deployments requiring security, portability, and scalability (including load balancing).
Common Questions about Stunnel
What does Stunnel do?
How do I use Stunnel?
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