![]() ![]() ~/.ssh/config to ease the pain: host company Once you've got the keypairs ready, you can add the following to your Or maybe you're only allowed to use SSH with keypairs. #NETCAT SSH PROXY PASSWORD#Long command and your password twice, every time. Making it more convenientĪfter using this for some time, you'll be annoyed by having to enter such a If you understood that, it should be obvious that this use of netcat is no SSH wants to send will use the "inner" SSH to travel between laptop andĬ and then netcat to travel between and workstation. In which it will start netcat to connect to workstation. Thanks to Prox圜ommand, it will first open an SSH connection to The final command > ssh -o "Prox圜ommand ssh nc %h %p" the magic command. Sounds like a fit made in heaven for netcat. Run whatever command you're passing (on laptop) and "communicate" to thatĬommand through stdin/stdout. Basically, what it means is that SSH will first ForĮxample, the following directive would connect via an HTTP proxy at 192.0.2.0: This directive is useful in conjunction with nc(1) and its proxy support. ![]() The commandĬan be basically anything, and should read from its standard input and write To connect, '%p' by the port, and '%r' by the remote user name. In theĬommand string, any occurrence of '%h' will be substituted by the host name The command stringĮxtends to the end of the line, and is executed with the user's shell. Specifies the command to use to connect to the server. The second one is slightly more involved: the Prox圜ommand option. rw-r-r- 1 user group 7811485 date trade_document.pdf ![]() Listening, on the sending machine, run: > nc receiver 1337 ssh ls password:ĭrwxr-xr-x 4 user group 4096 date secret_folder Netcat in the wild, some of which need you to specify the port with -p 1337Īnd some of which forbid it. (Note that there are multiple versions of >out.file tells your shell not to print stdout to the screen but rather This command instructs netcat to listen on port 1337 and the Ad-hoc file transferĪnother use-case, just as useful, is ad-hoc file transfer. You should get my home page sent back to you. The simplest being exploring a network protocol: > nc 80Īfter having pressed enter twice (because the HTTP protocol requires that), SSH and netcat, a match made in heavenĪt its core, creates a connection and lets you send anything to it.Ī bit like a lower-level telnet on steroids. #NETCAT SSH PROXY CODE#Notebook (ok, I'll call the latter laptop from now on) while all code runs on The latter is especially awesome, since it'd allow me to use the notebook on my
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