Protocol itself is not encrypted, Tnnel traffic to an SQL server, Tunnel traffic from your Desktop PC to a Proxy We can use a ssh tunnel to securely transfer files between a FTP server and a client even though the FTP If you never heard of Bypassing firewalls with port forwarding I recommend to check this article In other words SSH Tunnels can be used to get around firewall filtering. Probably most common SSH Tunnel use is to bypass firewalls that prohibits or filter certain internet services. Host B OpenSSH server has to be with ( enabled X11Forwarding – X11Forwarding yes in /etc/ssh/sshd_config) and Host A needs to have some SSH client supporting port forwarding ( ssh command on Linux – part of ( openssh-client package) and on Windows – Putty / Plink or any other of the many available ssh tunneling clients). Where Host B has to be running a version of OpenSSH server on some reachable port from Host B, (lets say 22). Network through an encrypted channel between two hosts ( host A and Host B) usually using remote and local port. So What is an SSH Tunnel? – SSH Tunnels shortly explained.Ī SSH tunnel consists of an encrypted tunnel created through a SSH protocolĪn SSH tunnel can be used to transfer unencrypted traffic over a Probably still there are plenty of people for which the SSH Tunnelling is something never heard of or even if heard it is a mythical term covered by ancient shadows □ In my earlier articles I've explained about Creating SSH Tunnels on Linux and BSD and how to create SSH Tunnels with Putty Terminal client on Windows.Ĭreating SSH Tunnels is a precious knowledge every advanced computer user, a system administrator or security expert should be well aware of.
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