in reply to Net::OpenSSH multiple commands

I can't see anything wrong in your script!

Net::OpenSSH has a debug mode that will tell you what's going on. Just add the following line at the beginning of your script: 

$Net::OpenSSH::debug = -1;

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Also, can you tell us the versions of the software you are using, including the OS, perl, Net::OpenSSH, the local SSH client and the remote SSH server?

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Re^2: Net::OpenSSH multiple commands
by cstrong (Beadle) on Sep 18, 2009 at 15:26 UTC
    Thanks Salva for your response

    I'm running

    Fedora release 9 (Sulphur)

    Perl v5.10.0 built for i386-linux-thread-multi

    openssh-5.1p1

    Local SSH client is OpenSSH_5.1p1, OpenSSL 0.9.8g 19 Oct 2007

    Remote SSH server is OpenSSH_2.5.2p2, SSH protocols 1.5/2.0

    Debug output is as follows: 
    # call args: ['ssh','-S','/home/cstrong/.libnet-openssh-perl/root-10.2
+24.138.142-26522-522395','-o','User=root','--','10.224.138.142','ps -
+ef']
# open_ex: ['ssh','-S','/home/cstrong/.libnet-openssh-perl/root-10.224
+.138.142-26522-522395','-o','User=root','--','10.224.138.142','ps -ef
+']
Connection to 10.224.138.142 closed by remote host.
# set_error(5 - child exited with code 255)
# DESTROY(Net::OpenSSH=HASH(0x949885c), pid => 26523)
# call args: ['ssh','-O','exit','-S','/home/cstrong/.libnet-openssh-pe
+rl/root-10.224.138.142-26522-522395','-o','User=root','--','10.224.13
+8.142']
# open_ex: ['ssh','-O','exit','-S','/home/cstrong/.libnet-openssh-perl
+/root-10.224.138.142-26522-522395','-o','User=root','--','10.224.138.
+142']
# set_error(5 - child exited with code 255)

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[d/l]
      Sorry, forgot to say that the debug ouput just posted is shown after the output of the first "ps -ef" - i.e. the important bit!
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      Remote SSH server is OpenSSH_2.5.2p2, SSH protocols 1.5/2.0

      That's quite old (~2001) and probably the cause of your problems... the only workaround besides upgrading the server would be to open a new connection for every command.

      Anyway, you (or the corresponding party) should upgrade the server software even if only for security reasons!

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        I know it's an old thread but...

        I'm having the exact same issue, what exactly do you mean with "to open a new conection"? Do you mean using the new method once more?

        Thanks in advance!

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