![]() Furthermore, lemonade has other useful features, such as opening a browser on the client, redirecting to a given URL. Note that the tool, like the others, should be installed on both server and client. We can then paste this data not only via the graphical interface but also the command line on the client: $ lemonade paste Importantly, using the copy command to lemonade, we move SSH session data directly to our local clipboard. The only change is the reverse tunnel ports – both are 2489, the default for lemonade: $ ssh -R localhost:2489:localhost:2489įinally, we use lemonade on the server to send data back to the client: $ echo "$(date)" | lemonade copy First, we start the lemonade server in a terminal: $ lemonade startĪfter this, in a separate terminal, we ssh to our server as we did previously. In fact, we use this tool in much the same way as nc. execute predefined actions on the server.send data from the SSH session to the client.One such alternative is the lemonade command – a single tool, which allows us to: Furthermore, the other options we’ll discuss provide a valuable bonus feature: clipboard access. There are alternatives to nc for achieving the same. Broadly speaking, this process just establishes a reverse connection to the client, which the server uses to provide data back. Indeed, going back to the client terminal with our nc server, we can see the current date just below the Netcat command. However, this information is actually transmitted to port 36661 of the client because of the reverse tunnel. Here, we send the current date to port 36660 of localhost, which is the SSH server. This allows us to send data via nc on the SSH server to the nc server we opened on the client: $ echo "$(date)" | nc localhost 36660 We read the -R (reverse tunnel) flag argument as follows: redirect any data to port 36660 of the remote host to the current client machine at port 36661. After that, in a separate terminal, we establish a reverse SSH tunnel session: $ ssh -R localhost:36660:localhost:36661 The -l flag starts a listening server at the port following -p. For this, we need first to start a separate server on the client itself: $ nc -l -p 36661 We can use nc (Netcat) for transferring information from the session back to the client. May be install the XQuartz 2.7.Another way to extract information from a live SSH session is just to send it out. I am still confused, what should I do next. After I execute echo $DISPLAY, the terminal just output blank space. But it didn't automatically set the DISPLAY like yours /private/tmp/0S1Q/org.xquartz:0. I use the brew install xquartz, and it installs the latest version. ![]() Actually, I reinstall xquartz2.8 for several times. But that's under the condition that the DISPLAY variable is set correctly. The trouble with this is that if the connection between the client and server is broken for a brief period of time, this will cause the keepalive messages to fail, and the client will end the connection with 'broken pipe'. This includes ssh -X, provided that XAuthLocation has been set correctly, see #174. This will detect if the server goes down, reboots, etc. On my Mac (Intel MacBook Pro, MacOS Monterey 12.1, XQuartz 2.7.11), I managed to get what you seem to want: every X11 application that I start from a normal MacOS Terminal starts XQuartz for me automatically. Note that the XQuartz installation should do this for you automatically, without you having to tinker with it. This should mean that every attempt to access the X11 display on the Mac should cause launchd to start XQuartz if it isn't already running. ![]()
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