Executing Password Change over Ruby Net-SSH - ruby

Question

I am looking to execute a password change over Net-ssh and this code seems to hang:
Net::SSH.start(server_ip, "user", :verbose => :debug ) do |session|
session.process.popen3("ls") do |input, output, error|
["old_pass","test", "test"].each do |x|
input.puts x
end
end
end
I know the connection works because using a simple exec I can get the output from ls on the remote server, but this hangs.
Any ideas?
The last message from debug is that the public key succeeded.

Answer 1

This one will solve your issue ,, note this script to change password for a list of servers list in file
#~~~~~~~~~~~~~~~~~~~~~~~
# Change Password is a simple script to change the password for a list of servers
# Coded by : Sabry Saleh
# License : GPL2
#~~~~~~~~~~~~~~~~~~~~~~~
#=-Notes-=
# You have to install ruby + net-ssh gems
# sudo gem install net-ssh
#~~~~~~~~~~~~~~~~~~~~~~~
require 'net/ssh'
host = IO.readlines('test1.txt') # full path of servers' list
port = 22 # SSH port
user = 'username' # username
i = 0
while i < host.length
Net::SSH.start(host[i], user , :password => "User pass" , :port=> port) do |ssh|
ssh.open_channel do |channel|
channel.on_request "exit-status" do |channel, data|
$exit_status = data.read_long
end
channel.request_pty do |channel, success|
channel.exec("sudo passwd UserName") # Logged user shuold be root or sudoers memeber
if success
channel.on_data do |channel, data|
puts data.inspect.chomp("\r\n")
channel.send_data("New pass\n") # put the New password you need to set
sleep 0.1
end
else
puts "FAILED!!"
end
end
channel.wait
puts "SUCCESS!!" if $exit_status == 0
end
end
i += 1
end