1/28/2024 0 Comments Use stunnel for tlsIt is a sort of proxy designed to add TLS encryption functionality to existing clients and servers without any changes in the programs code. This article shows you how to use it, with telnet as an example. description: stunnel is a program that allows you to encrypt arbitrary TCP connections inside TLS (Transport Layer Security, the successor to Secure Sockets. In our case, it will be used to host the TLS certificates used for our encapsulation, decode incoming traffic, and forward the traffic to another port. This encrypted connection is in lieu of a direct connection between the client’s application and the server’s application, which helps prevent tampering with communications in transit from one end of the connection to another. stunnel (Secure Tunnel) is a cross-platform application used to provide a universal TLS/SSL tunneling service. Stunnel is designed to add SSL encryption to programs that have insecure connection protocols. In short, Stunnel is a tool designed to add TLS encryption to applications that do not speak the protocols natively. Stunnel manages one or more client-server TCP/IP connections by creating an encrypted tunnel through which only the client and server are allowed to speak. Stunnel can also inspect every packet within encrypted tunnels and make adjustments to improve performance. It encrypts traffic, proxies connections, and redirects web applications so that they can run securely on a computer with untrusted network connections. Stunnel is a very versatile open-source tool designed to help secure web applications.
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