The main difference is that the "SSH tunnel" is encrypted from client to server. The netcat is just unencrypted connection of what you write and read from it (or higher-level protocol).

Dec 19, 2019 · Netcat literally just opens a connection to a TCP port and lets you send data to it. You can use netcat to connect to a SSH server, the problem is that once you establish the connection to the TCP port you don't send the right data, and …

Jul 19, 2019 · Netcat nc doesn't do anything like that – it is primarily a 8-bit clean TCP client. It can be used with ASCII protocols just like telnet, but also can and often is used as a "pipe" into TCP for batch data transfer, because it will not alter any byte sent through it.

Jan 31, 2013 · Netcat opens an encryption-less connection from one host to another, which is why it outperforms SSH. If using the netcat method, take a moment to consider the implications of sending raw, unecrypted data over your network.

Apr 6, 2015 · Added a 'netcat mode' to ssh (1): "ssh -W host:port ..." This connects stdio on the client to a single port forward on the server. This allows, for example, using ssh as a ProxyCommand to route connections via intermediate servers.

Nov 6, 2006 · Using an SSH tunnel has two advantages: The data is transfered inside an encrypted tunnel, so it is well-protected. You do not need to keep any open ports in the firewall configuration of the machine that will act as the server, as …

Apr 21, 2020 · To fix, get the listener to only accept IP6 packets by using command nc -6l 5678, then everything works correctly. SSH "port forwarding" is a bit different from the one performed by routers.

Feb 24, 2020 · Netcat (or nc) is a command-line utility that reads and writes data across network connections, using the TCP or UDP protocols. It is one of the most powerful tools in the network and system administrators arsenal, and it as considered as …

You don't need to create an SSH tunnel to do this - all you need to do is get NetCat to talk on port 22, as that is all the firewall is likely to be blocking on. man nc should give you all the information you need.

Jun 16, 2017 · So what we have. We can read data from local port to output and we can write data to remote host. Let’s combine these commands: $ nc -l -p 8080 | ssh gw_to_private_net -p 22977 \ "nc 192.168.12...