Using Python to run SSH commands on a remote server

[John Salerno]

Generally speaking, what tools would I use to do this? Is there a built-in
module for it? I looked at the telnetlib module, but the documentation
wasn't really complete enough for me to get a good idea of it. Is Telnet and
SSH even the same thing?

Basically, I want to write a script that will automate the process of making
all .py files on my web server executable (chmod 755, or something similar).

Thanks.

 

[Mark Wooding]

Generally speaking, what tools would I use to do this? Is there a built-in
module for it?

There's paramiko (q.g.). I can't personally vouch for it, but it seems
popular... It seems to depend on a separate crypto library.

Is Telnet and SSH even the same thing?

No. They're very different.

-- [mdw]

 

[John Salerno]

Be careful, this procedure sounds potential risky, security-wise ;-)

I guess a blanket process might be a tad risky, but don't you want all CGI
files to be executable by all?

 

[John Salerno]

Also note that "all .py files on my web server" is not necessarily
restricted to CGI scripts -- and therein lies the real gist of my
cautionary note.

Yeah, I realized that afterwards. Good point. I was assuming all my
executable files would be CGI, but that's not a good assumption to make!

 

[subeen]

Yeah, I realized that afterwards. Good point. I was assuming all my
executable files would be CGI, but that's not a good assumption to make!

You can execute ssh using os.system(). Look at
http://love-python.blogspot.com/2008/02/execute-linux-commands-in-python.html
If you want non-interactive ssh (so that your script doesn't need to
enter password), look at: http://speed-dev.blogspot.com/2008/06/non-interactive-ssh-in-linux.html

regards,
Subeen.

 

[Taygun Kekec]

Alson you can take a look at pexpect module if you want to automate
logging in and process commands , in this way you will no longer wait
for loginname and password prompt.