Using SSH over Node.js

Question

I'm trying to run a ssh child process in node.js and control it through my program. My code:

var util   = require('util');
var spawn = require('child_process').spawn;
var ssh    = spawn('ssh', ['cloudstudios.ch']);

ssh.stdout.on('data', function (data) {
  console.log('stdout: ' + data);
});

ssh.stderr.on('data', function (data) {
  console.log('stderr: ' + data);
});

ssh.on('exit', function (code) {
  console.log('child process exited with code ' + code);
});

I can enter the password in the console, but I can't do anything after that. I get the following console ouput:

stderr: Pseudo-terminal will not be allocated because stdin is not a terminal.

[email protected]'s password:
stdout: Linux v 2.6.32-5-xen-amd64 #1 SMP Wed Jan 12 05:46:49 UTC 2011 x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.

stderr: stdin: is not a tty

Has someone an idea how I can get this to work?

Thanks!

Check this out github.com/steelbrain/node-ssh

Steel Brain
– Steel Brain

2015-05-23 06:26:08 +00:00
Commented May 23, 2015 at 6:26 — Steel Brain
– Steel Brain, Commented May 23, 2015 at 6:26

stack underflow · Accepted Answer · 2011-03-13 22:24:36Z

10

try a little modification:

var ssh = spawn('ssh', ['-tt', 'xxx']);

and:

process.stdin.resume();
process.stdin.on('data', function (chunk) {
  ssh.stdin.write(chunk);
});

answered Mar 13, 2011 at 22:24

stack underflow

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7 Comments

stack underflow Over a year ago

sorry i dont actually know what those pseudo terminals are so no explanation, see man ssh. Also remember the command reset will come handy in these experiments.

Van Coding Over a year ago

Thanks! That TTY thing is now fixed! But after entering the password and hitting enter, I cannot see any output of ssh. Any idea for this?

Van Coding Over a year ago

I've tested if the commands I enter are executed. And they are! I only don't get the output of the commands. Have you an idea how to get the missing output?

andref Over a year ago

Use public key authentication instead?

esamatti Over a year ago

You can use pty.js for passoword sending stackoverflow.com/a/9788213/153718

|

esamatti · Accepted Answer · 2012-03-20 12:11:26Z

8

I´ve created a SSHClient for node.js now. You can download the sourcecode at https://github.com/VanCoding/NodeSSH.

Hope it will help some other people.

edited Mar 20, 2012 at 12:11

esamatti

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answered Mar 16, 2011 at 17:25

Van Coding

24.6k25 gold badges93 silver badges138 bronze badges

1 Comment

Van Coding Over a year ago

Yes, I changed my name, sorry.

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