#Mac ssh tunnel manager how to#

Benefits of SSH tunneling for enterprises Tunneling is often used together with SSH keys and public key authentication to fully automate the process.

#Mac ssh tunnel manager how to#

To see how to configure an SSH tunnel, see this example. It can also be used for hiding attackers's tracks by bouncing an attack through multiple devices that permit uncontrolled tunneling. Hackers and malware can similarly use it to leave a backdoor into the internal network. This is widely exploited by internal IT people to log into their home machines or servers in a cloud, forwarding a port from the server back into the enterprise intranet to their work machine or suitable server. The downside is that any user who is able to log into a server can enable port forwarding. The application communication is thus secured, without having to modify the application or end user workflows. The server then connects to the actual application server - usually on the same machine or in the same data center as the SSH server. The SSH client then forwards the application over its encrypted tunnel to the server. With tunneling enabled, the application contacts to a port on the local host that the SSH client listens on. The SSH connection is used by the application to connect to the application server. This SSH connection is encrypted, protects confidentiality and integrity, and authenticates communicating parties. The secure connection over the untrusted network is established between an SSH client and an SSH server. The figure presents a simplified overview of SSH tunneling. SSH tunneling enables adding network security to legacy applications that do not natively support encryption. This means that the application data traffic is directed to flow inside an encrypted SSH connection so that it cannot be eavesdropped or intercepted while it is in transit. 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. SSH is a standard for secure remote logins and file transfers over untrusted networks. It can also be used to implement VPNs (Virtual Private Networks) and access intranet services across firewalls.

It can be used to add encryption to legacy applications. SSH tunneling is a method of transporting arbitrary networking data over an encrypted SSH connection. Contents What is an SSH tunnel? Who uses SSH tunneling? Benefits of SSH tunneling for enterprises SSH tunneling in the corporate risk portfolio How to configure an SSH tunnel What is an SSH tunnel?