bear0053 has asked for the wisdom of the Perl Monks concerning the following question:

fellow monks,
I am encountering the following problem:
i am trying to use sftp2 which is a command line program to log into a ssh server and put/get files from it during the exectution of my perl script.

The problem is that i call it like this: 
my $pexec =  `sftp2 username@host.com';

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that starts the program and then prompts for a pwd. is there any way i can keep that shell open and continue to pass in parameters to the command line?

If not i am also trying to use Net::SSH:Perl but i can't install it for the life of me. I am trying to use the make file and it continually fails. it can't get past the Crypt::DSA install.

all help is appreciated thanks in advanced

Replies are listed 'Best First'.
Re: SSH Help
by itub (Priest) on Oct 29, 2004 at 03:45 UTC
    I remember I managed to install Net::SSH::Perl on Linux once, although it was a painful experience. What is your platform?
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      win xp pro
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        Since many of this module's dependencies require compilation and probably some external libraries, I'm afraid that installing in directly in Windows must be a titanic task. Perhaps in cygwin it will be easier.

        I would recommend using something like cygwin ssh or putty and public-key authentication, as others have suggested.

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Re: SSH Help
by Anonymous Monk on Oct 29, 2004 at 06:24 UTC
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Re: SSH Help
by Taulmarill (Deacon) on Oct 29, 2004 at 08:14 UTC
    if you just want to copy files you can set up public-key authentication, so you won't be prompted for a password.
    keep in mind that you can use scp just like cp but with a special syntax for remote files (like the rcp syntax).
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      For those of you yet to experience the pure joy of SSH used properly:

      On a unix box: (or Cygwin). 

      %> ssh-keygen -b 1024 -t RSA
<key in a good passphrase twice>

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      Now let's copy the Public key to the remote machine you want to have access to:

      cat .ssh/id_rsa.pub | ssh -l<user> <target_ip> '[ -d .ssh ] || mkdir .
+ssh ; chmod 700 .ssh ; cat - >> ~/.ssh/authorized_keys'

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      Now let's start up ssh-agent. You can either run you WM via ssh-agent: Add the following to your .xinitrc file:

      exec /usr/bin/ssh-agent <Window Manager of choice>

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      or to your .bashrc:

      SSHAGENT=$(which ssh-agent)
SSHAGENTARGS="-s"
if [ -z "$SSH_AUTH_SOCK" -a -x "$SSHAGENT" ]; then
eval `$SSHAGENT $SSHAGENTARGS`
trap "kill $SSH_AGENT_PID" 0
fi

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      Hooray... We're all set

      Now, run ssh-add to add your private key passphrase to the ssh-agent keyring: 
      %>ssh-add
<key in your passphrase>

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      Now, you can log into the remote machine with wanton abandon.


      Repeat as necessary

      I hope you'll all forgive the non-perlness of this post but I thought someone, somewhere may just find it usefull.

      SM

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[d/l]
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        For bonus points, tell us how to do it on Windows, since that was the OS in question.

        C.

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Re: SSH Help
by bibo (Pilgrim) on Oct 29, 2004 at 14:53 UTC
    Well I have had fair luck with psftp which comes from the putty people. I am on Win2K, and you can provide a password on the command line with psftp, maybe this will help?

    --bibo

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Re: SSH Help
by Anonymous Monk on Oct 29, 2004 at 06:24 UTC
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