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How to execute a command by using a SSH connection on a remote IP and then return the results?

Posted on 2016-09-01
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Last Modified: 2016-09-03
Hi Experts

How to execute a command by using by using a SSH connection on a remote IP and then return the results?

I'm facing a chalenge on how to do this by using PHP.

1. Fill  username/ password to be validated and only after validation  (doable).

2. Fill a textbox with an IP address  (doable).

3. Fill another textbox with a command to be executed in the IP machine (doable).

Could you point a way on how to do this ?
4. After that a SSH connection must be done, the command must to be executed  and return the results.

Obs.:
I am willing to work for an information security company and must to attend some questions previously.


Thanks in advance
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Question by:Eduardo Fuerte
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Expert Comment

by:ltpitt
ID: 41779896
There are different ways to tackle this obstacle.
Do you think this kind of path might be interesting for you?

http://php.net/manual/en/function.shell-exec.php

Since you talk about information security company are there any specific requirements that have to be met?
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Author Comment

by:Eduardo Fuerte
ID: 41779930
Hi

I'm willing to start working for them... during this test phase it's up to me to find a solution.
I'm going to check.
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Expert Comment

by:ltpitt
ID: 41779947
In this case we'd need to put some extra effort into it...
Please write back if the link is unclear or if you have further questions.

I am more confident with Python than with PHP but I bet better experts will pop up soon :)
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Accepted Solution

by:
Ray Paseur earned 450 total points
ID: 41779989
I think I would approach this from the perspective of a RESTful API.  Here is an article with some ideas.
https://www.experts-exchange.com/articles/12239/Introduction-to-Application-Programming-Interfaces.html

I think I would never let an external client request furnish an unfiltered command to run on my server.  However a RESTful API design could include a number of commands that the client could request and the server could execute safely.

But with that said, these links (and their links) might be helpful...
http://php.net/manual/en/book.ssh2.php
http://php.net/manual/en/ssh2.requirements.php
http://php.net/manual/en/ssh2.installation.php
http://php.net/manual/en/function.ssh2-connect.php
1
 

Author Comment

by:Eduardo Fuerte
ID: 41780621
Hi

I found a library  phpseclib1.0.3 that at first view automatize this kind of operation.
Do you have any reference about it?
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Assisted Solution

by:ltpitt
ltpitt earned 50 total points
ID: 41781368
It seems like Laravel is supporting ssh commands:
https://laravelcollective.com/docs/5.0/ssh
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Author Closing Comment

by:Eduardo Fuerte
ID: 41783281
Thanks for help!
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