[openssl-users] updating list of server account password

Fri Apr 3 19:52:34 UTC 2015

Hello Mike, Don and Matt, 

At the point I am at this list of servers in my script I would really need someone with more experience to see if I even have the right scripting. 

#!/usr/bin/perl
use strict;

use Expect;

my $timeout = 60;

my @servers = qw(
     remotehost03
     remotehost04
     remotehost05
     remotehost06
);

for my $server (@servers) {
# do your thing with $server

    change_password($server);

 }

sub change_password {
            my $system = shift;

my $filename = "/var/tmp/expect_script.log";
my $ssh = Expect->new('ssh amagana@' . $system);

$ssh->debug(1);
$ssh->expect ( $timeout,
      [ qr/Password:/],
      [ qr/Are you sure you want to continue connecting \(yes\/no\)?/]
      );

if ($ssh->match() =~ m/Are you sure you want to continue connecting \(yes\/no\)?/ ) {
$ssh->send("yes\r");
}

elsif ($ssh->match() =~ m/Password:/ ) {
$ssh->send("mypassword\n");
}

#$ssh->log_file($filename, 'w');
$ssh->expect(60, '$');
$ssh->send("su - root\n");
$ssh->expect(60, 'Password:');
$ssh->send("rootpassword\n");
$ssh->expect(60, '#');
$ssh->send("passwd amagana\n");
$ssh->expect(60, 'New Password:');
$ssh->send("mynewpassword\n");
$ssh->expect(60, 'Re-enter new Password:');
$ssh->send("mynewpassword\n");
$ssh->expect(60, '#');
$ssh->close();

Respectfully, 

#!/usr/bin/perl
use strict;

use Expect;
my $timeout = 60;
my $filename = "/var/tmp/expect_script.log";
my $ssh = Expect->new('ssh amagana at remotehost');

$ssh->debug(1);
$ssh->expect ( $timeout,
      [ qr/Password:/],
      [ qr/Are you sure you want to continue connecting \(yes\/no\)?/]
      );

if ($ssh->match() =~ m/Are you sure you want to continue connecting \(yes\/no\)?/ ) {
$ssh->send("yes\r");
}

elsif ($ssh->match() =~ m/Password:/ ) {
$ssh->send("mypassword\n");
}

#$ssh->log_file($filename, 'w');
$ssh->expect(60, '$');
$ssh->send("su - root\n");
$ssh->expect(60, 'Password:');
$ssh->send("rootpassword\n");
$ssh->expect(60, '#');
$ssh->send("passwd amagana\n");
$ssh->expect(60, 'New Password:');
$ssh->send("mynewpassword\n");
$ssh->expect(60, 'Re-enter new Password:');
$ssh->send("mynewpassword\n");
$ssh->expect(60, '#');
$ssh->close();

//SIGNED//

Andy Magaña
UNIX Systems Administrator
Diligent Contractor, 72nd Air Base Wing
Tinker Air Force Base, Oklahoma 
Commercial: (405) 734-0341

-----Original Message-----
From: mike nicholas [mailto:xmikenicholasx at gmail.com] 
Sent: Wednesday, April 01, 2015 9:46 AM
To: MAGANA, ANDREAS S I CTR USAF AFMC 72 ABW/SCOOT
Cc: ESRY JR., DON; Matt Zagrabelny; expectperl-discuss at lists.sourceforge.net
Subject: Re: [Expectperl-discuss] expect.pm not updating password

Try something like this:

 my $exp = new Expect;

 $exp->log_stdout(1);

 $username = "XXXXXX";

 $exp->spawn( "ssh -l ${username} ${ip} " ) or die "cannot spawn $command: $! \n";

 $exp->log_file("./${log_dir}/$ip\_info.log");

 print "\nspawning ssh connection to $ip on $time\n\n";                                                                                                                                                                                        

 $exp->log_file->print( "\nspawning ssh connection to $ip on $time\n\n" );

 $exp->expect(8, 

 [ 'connecting' => sub { $exp->send("yes \n"); exp_continue; } ],

 [ 'assword:' => sub { $exp->send("$pw\n"); exp_continue; } ], 

 [ '-re', '> ?$' => sub { break; }],

 [ 'try again' => sub { die " died from bad password.\n"; }],

 [ 'refused' => sub { die " died from connection refused.\n"; exp_continue; } ], 

 [ eof => sub { die " died from eof.\n"; }],

 [ timeout => sub { $exp->hard_close(); }],

 );

On Wed, Apr 1, 2015 at 9:24 AM, MAGANA, ANDREAS S I CTR USAF AFMC 72 ABW/SCOOT <andreas.magana.ctr at us.af.mil> wrote:

	Now that I have a working script and thanks very much to you Matt and Don,

	I am trying to put in my script an if else because sometimes my script will encounter this :

	Are you sure you want to continue connecting (yes/no)?')

	what I did create are some variables is this correct and may I see an example if statement so that the script can make a decision and keep going?

	use Expect;
	my $knownhost = $ssh->expect(60, 'Are you sure you want to continue connecting (yes/no)?');
	my $answer = $ssh->send("yes\n");
	my $filename = "/var/tmp/expect_script.log";

	//SIGNED//

	Andy Magaña
	UNIX Systems Administrator
	Diligent Contractor, 72nd Air Base Wing
	Tinker Air Force Base, Oklahoma
	Commercial: (405) 734-0341 <tel:%28405%29%20734-0341> 

	-----Original Message-----
	From: ESRY JR., DON [mailto:de3253 at att.com]
	Sent: Tuesday, March 31, 2015 4:16 PM
	To: Matt Zagrabelny; MAGANA, ANDREAS S I CTR USAF AFMC 72 ABW/SCOOT
	Cc: expectperl-discuss at lists.sourceforge.net

	Subject: RE: [Expectperl-discuss] expect.pm not updating password

	I think you will want a log file to identify where the script failed.

	I recommend that you take out the 'w' from the $ssh->log_file($filename, 'w'); so it will append to the file rather than over writing it for each server.

	And then put in some sort of header for each server, something like:
	my $header = "\n\n======= $system =======\n"; $ssh->print_log_file($header);

	Or if you prefer a separate file for each server, then my $filename = "/var/tmp/expect_script_". $system ".log";

	little stuff like this can be very frustrating.

	-----Original Message-----
	From: Matt Zagrabelny [mailto:mzagrabe at d.umn.edu]
	Sent: Tuesday, March 31, 2015 4:56 PM
	To: MAGANA, ANDREAS S I CTR USAF AFMC 72 ABW/SCOOT
	Cc: expectperl-discuss at lists.sourceforge.net
	Subject: Re: [Expectperl-discuss] expect.pm not updating password

	On Tue, Mar 31, 2015 at 3:37 PM, MAGANA, ANDREAS S I CTR USAF AFMC 72 ABW/SCOOT <andreas.magana.ctr at us.af.mil> wrote:
	> Thank you Matt,
	>
	> I just don't know how to put it in a working way I learn by examples I
	> am a novice on perl and the modules.

	Maybe spend a day or two writing some basic perl programs so you feel more comfortable with this stuff. I'm sure there are truckloads of perl tutorials out there.

	I added some context below. You'll need to clean up the leading '>' characters.

	-m

	>
	> #!/usr/bin/perl
	> use strict;
	>
	> use Expect;
	>
	> # my @servers = qw(
	> #    server1.example.net
	> #    server2.example.net
	> #    server3.example.net
	> #    server4.example.net
	> #    server5.example.net
	> # );
	> #
	> # for my $server (@servers) {
	> #    # do your thing with $server

	    change_password($server);

	> # }
	>

	sub change_password {
	    my $system = shift;

	    my $filename = "/var/tmp/expect_script.log";
	    my $ssh = Expect->new('ssh amagana@' . $system);

	> $ssh->debug(1);
	> $ssh->log_file($filename, 'w');
	> $ssh->expect(60, 'Password:');
	> $ssh->send("mycurrentpassword\n");
	> $ssh->expect(60, '$');
	> $ssh->send("su - root\n");
	> $ssh->expect(60, 'Password:');
	> $ssh->send("myrootpassword\n");
	> $ssh->expect(60, '#');
	> $ssh->send("passwd amagana\n");
	> $ssh->expect(60, 'New Password:');
	> $ssh->send("mynewpassword\n");
	> $ssh->expect(60, 'Re-enter new Password:');
	> $ssh->send("mynewpassword\n"); $ssh->expect(60, '#');
	> $ssh->send("exit\n"); $ssh->close();

	}

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	by Intel and developed in partnership with Slashdot Media, is your hub for all
	things parallel software development, from weekly thought leadership blogs to
	news, videos, case studies, tutorials and more. Take a look and join the
	conversation now. http://goparallel.sourceforge.net/
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