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What is SSH Tunnel?

SSH tunneling is a method used to transport arbitrary networking data over an encrypted SSH (Secure Shell) connection. It can be employed for various purposes:

• Legacy Application Encryption: It allows adding encryption to older or legacy applications.
• VPN Implementation: SSH tunneling can implement Virtual Private Networks (VPNs), enabling access to intranet services across firewalls.
• Secure Remote Logins and File Transfers: SSH is a standard protocol for secure remote logins and file transfers over untrusted networks.
• Port Forwarding: SSH provides port forwarding, allowing the secure tunneling of TCP/IP ports to enhance the security of data traffic for any application.

By utilizing SSH tunneling, the security of data transmitted over the internet is improved. Acting as an intermediary between your computer and internet connections, SSH ensures encryption of all transmitted and received data, thus enhancing confidentiality and integrity.

It's important to note that although using SSH accounts for tunneling internet connections doesn't guarantee an increase in internet speed, it offers benefits such as the usage of a static IP address and enhanced privacy.

What is SSH Over SSL/TLS (STunnel)?

STunnel encrypts entire connections in SSH over SSL or TLS (Secure Sockets Layer/Transport Layer Security). This encryption relies on the OpenSSL library to implement the underlying TLS or SSL protocol. STunnel is compatible with various operating systems, including most Unix-like operating systems and Windows.