Create ssh tunnel putty11/25/2023 How to create SSH Tunnels on Microsoft Windows SSH Tunneling is great way to maintain high communication security, however because it requires some basic technical knowledge most people neglect it or never heard of it, so I hope this article will give at least basic ideas to people new to tunneling. SSH Tunneling was historically very famous in days where IRC ( Internet Relay Chat) and used to be common way (for people who want to prevent their real IP address from publicly visible) on the Internet. Another good case use of SSH Tunnel is to tunnel VNC traffic. SSH tunnels can be used to tunnel outbound E-mail traffic back to your work PC to avoid having to change SMTP servers etc.Ī very common SSH Tunnel use is by office workers who don't want their Custom Web browsing habbits and Web history be tracked,įor people who has to travel a lot tunneling SSH traffic from notebook to your home based SMTP is mandatory, otherwise your e-mail passwords, might end up captured by someone who manages the Free WI-FI used by you somewhere on the road or cafeteria. 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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