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Get network versatility with SSH tunneling and netcat |
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Source: TechRepublic - Posted by Anthony Pell
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Vincent Danen explains how to use netcat with SSH tunneling when you need to create a secure connection to a server from a remote location.
SSH is a versatile protocol and OpenSSH, a versatile tool — so much so, that it can be used for a lot of extremely cool things. Throw in netcat, another Swiss Army Knife networking tool that is even more all-purpose than SSH (in terms of networking capabilities), and you get the network versatility of netcat with the strong encryption and authentication of SSH.
One of the best uses for netcat and SSH is to create a transparent SSH tunnel through a secure bastion host. This essentially means that you connect to a secure host in order to reach another host, using the bastion host as a transparent middle-man. There are a number of reasons to require something like this. The most common, by far, is a locked-down SSH server that restricts access to all but a few known IPs, usually via tcp_wrapper rules or firewall rules.
Read this full article at TechRepublic
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