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1

Add -q to the command you use to run ssh, from the man page: -q Quiet mode. Causes most warning and diagnostic messages to be suppressed. SSH man page


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Assuming you just want to forward a SSH connection all the way down to C, you could e.g. make the SSH endpoint on B a dedicated user account, and then use the iptables owner module to match --uid-owner username in order to get that traffic to go out through the interface towards D.


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You may need to specify a bind address on the -L option. Like: -L 192.168.1.100:1212:serverBehindFirewall:80 as requested, paste from below: Option "GatewayPorts" set to "yes" in /etc/ssh/ssh_config fixed the problem. This obviously does (almost) the same, as specifying "GatewayPorts yes". It binds to the specified address. The Option "GatewayPorts yes" ...


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For those of you using chef, adding MaxSessions 1 to /etc/ssh/sshd_config will break knife ssh as it seems to rely on multiplexing. If anyone has a workaround for this, I'd love to hear it!!! (adding MaxSessions 1 and NOT breaking chef, that is...). NOTE: For above ^^^ You'll see errors like: ERROR: IOError: closed stream ERROR: Net::SSH::Disconnect: ...


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Try use sshtunnel lib. Example: from sshtunnel import SSHTunnelForwarder from time import sleep with SSHTunnelForwarder( ('localhost', 2222), ssh_username="vagrant", ssh_password="vagrant", remote_bind_address=('127.0.0.1', 3306)) as server: print(server.local_bind_port) while True: # press Ctrl-C for stopping ...


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You shouldn't believe everything you read on the Internet. :) There is no security problem with enabling TCPKeepAlive. There never was any such problem. The meaning of the warning in the sshd_config(5) manual is that you shouldn't rely on TCPKeepAlive alone, since an attacker can spoof it to fool the server into thinking a connection is still alive when it ...



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