SSH tunneling is a method of transporting arbitrary networking data over an encrypted SSH connection. It can be used to add encryption to legacy applications. It can also be used to implement VPNs (Virtual Private Networks) and access intranet services across firewalls.
SSH is a standard for secure remote logins and file transfers over untrusted networks. It also provides a way to secure the data traffic of any given application using port forwarding, basically tunneling any TCP/IP port over SSH.
We can improve the security of data on your computer when accessing the Internet, the SSH account as an intermediary your internet connection, SSH will provide encryption on all data read, the new send it to another server.
Using SSH accounts for tunneling your internet connection does not guarantee to increase your internet speed. But by using SSH account, you use the automatic IP would be static and you can use privately.
SSH (Secure Shell), is the open protocol which is used to
secure network communication which is less expensive &
complex than hardware-based VPN solutions or in other words,
it offers authentication, encryption & data integrity for
securing network communications. By implementing SSH, we get
some of the capabilities like a secure command-shell, secure
file transfer, and remote access to a variety of TCP/IP
applications via a secure tunnel.
Dropbear is a relatively small SSH server and client. It
runs on a variety of POSIX-based platforms. Dropbear is open
source software, distributed under a MIT-style license.
Dropbear is particularly useful for "embedded"-type Linux
(or other Unix) systems, such as wireless routers.
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.