Is it possible to set the Arduino Yun up as an ssh client? If so, how?
- The Atheros chip should have enough muscle for an SSH client. The ATmega has not enough resources for that: too little RAM and too slow for reasonable use. But what do you mean by 'SSH client'? An SSH client is a program that can connect to an SSH daemon (or server). So an SSH client can initiate a connection to your PC which runs an SSH daemon. The client can send commands to the PC, the PC executes them. Is that what you mean?jippie– jippie2014-08-19 18:43:55 +00:00CommentedAug 19, 2014 at 18:43
- Yes that is what I mean. I need the arduino yun to act as an ssh client to start an ssh session with another box and then execute some basic commands.Joem– Joem2014-08-20 05:04:58 +00:00CommentedAug 20, 2014 at 5:04
- What do you mean that the ATmega doesn't have enough resources for an ssh client. Is this dependent on the work being done by the client or just in the setting up of the client / serverJoem– Joem2014-08-20 05:07:23 +00:00CommentedAug 20, 2014 at 5:07
- You need memory for at least the IP packets and session information as well as for the SSH keys. It would be useful if there was some memory left for regular tasks too. If you manage to squeeze that into maximum of 4kB RAM in the ATmega, then the key exchange would take ages because asymmetric key exchange is very CPU intensive.jippie– jippie2014-08-20 05:24:01 +00:00CommentedAug 20, 2014 at 5:24
1 Answer1
You need to install packageopenssh-client: it's available in thepackage list. Seethis tutorial about how to install optional packages.
You can callssh on the Linux side usingProcess from theBridge Arduino library.Best is when you execute single or grouped commands using a syntax as:
ssh user@your_other_host 'echo 1; echo 2'Managing an open ssh session is possible but I think may be troublesome, so avoid it if you can.
- Hi. Thanks for that answer. Im still struggling to get a fully operational ssh client. I can connect to the ssh server from the client but how do I receive data back from the server?Joem– Joem2014-10-31 11:36:38 +00:00CommentedOct 31, 2014 at 11:36
- You can grab the output produced by the commands run on the serverFederico Fissore– Federico Fissore2014-11-03 08:40:14 +00:00CommentedNov 3, 2014 at 8:40
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