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Full Discussion: Problem with perl openssh
Top Forums Shell Programming and Scripting Problem with perl openssh Post 302466645 by dahlia84 on Wednesday 27th of October 2010 12:48:47 AM
Old 10-27-2010
Can you try something like this? Source: Net::OpenSSH

Quote:
mod_perl and mod_perl2

mod_perl and mod_perl2 tie STDIN and STDOUT to objects that are not backed up by real file descriptors at the operative system level. Net::OpenSSH will fail if any of these handles is used explicetly or implicitly when calling some remote command.
The workaround is to redirect them to /dev/null or to some file:
open my $def_in, '<', '/dev/null' or die "unable to open /dev/null";
my $ssh = Net::OpenSSH->new($host,
default_stdin_fh => $def_in);

my $out = $ssh->capture($cmd1);
$ssh->system({stdout_discard => 1}, $cmd2);
$ssh->system({stdout_to_file => '/tmp/output'}, $cmd3);

Also, note that from a security stand point, running ssh from inside the webserver process is not a great idea. An attacker exploiting some Apache bug would be able to access the ssh keys and passwords and gain unlimited access to the remote systems.
If you can, use a queue (as TheSchwartz) or any other mechanism to execute the ssh commands from another process running under a different user account.
At a minimum, ensure that ~www-data/.ssh (or similar) is not accessible through the web server!
 

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LEARN ABOUT MOJAVE

net::ldap::control::syncdone5.18

Net::LDAP::Control::SyncDone(3) 			User Contributed Perl Documentation			   Net::LDAP::Control::SyncDone(3)

NAME

       Net::LDAP::Control::SyncDone - LDAPv3 Sync Done control object

SYNOPSIS

       See Net::LDAP::Control::SyncRequest

DESCRIPTION

       "Net::LDAP::Control::SyncDone" provides an interface for the creation and manipulation of objects that represent the "Sync Request Control"
       as described by RFC 4533.

CONSTRUCTOR ARGUMENTS

       In addition to the constructor arguments described in Net::LDAP::Control the following are provided.

       cookie
       refreshDeletes

METHODS

       As with Net::LDAP::Control each constructor argument described above is also available as a method on the object which will return the
       current value for the attribute if called without an argument, and set a new value for the attribute if called with an argument.

SEE ALSO

       Net::LDAP, Net::LDAP::Control, Net::LDAP::Control::SyncRequest, Net::LDAP::Control::SyncState, http://www.ietf.org/rfc/rfc4533.txt

AUTHOR

       Mathieu Parent <math.parent@gmail.com>

       Please report any bugs, or post any suggestions, to the perl-ldap mailing list <perl-ldap@perl.org>

COPYRIGHT

       Copyright (c) 2008 Mathieu Parent. All rights reserved. This program is free software; you can redistribute it and/or modify it under the
       same terms as Perl itself.

perl v5.18.2							    2013-07-21					   Net::LDAP::Control::SyncDone(3)
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