From: Cliff Rosson <cliff.rosson@...>
Date: 2012-09-22T01:51:22+09:00
Subject: Re: ruby - remote method invocation

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I am no expert but I use this to manage devices.

require 'rubygems'
require 'net/ssh'
require 'net/ssh/telnet'

class SSH
  attr_accessor :errors

  def initialize(creds)
    begin
      @ssh_session = Net::SSH.start(creds[:host], creds[:user], :password
=> creds[:password], :keys => [])
      @ssh = Net::SSH::Telnet.new("Session" => @ssh_session, "Prompt" =>
creds[:prompt])
      @errors = false
    rescue Exception => e
      @errors = e
    end
  end

  def cmd(command)
    @ssh.cmd(command)
  end

  def close
    @ssh_session.close
  end

end

I would then create something like this depending on the device type I was
connecting to.

require './ssh.rb'

class Cisco_ssh < SSH
  attr_accessor :config, :users
  def initialize(creds)
    begin
      @host = creds[:host]
      @users = []

      creds[:prompt] = /.*>|.*#/
      super(creds)
      @ssh.cmd("en\r#{creds[:enable]}")
      @ssh.cmd("term len 0")

      @config = @ssh.cmd("show run")
      get_users
    rescue Exception => e
      @errors = e
    end
  end

  def enable(pass)
    @ssh.cmd("en\r#{pass}")
  end

  def termlen=(length)
    @ssh.cmd("term len #{length}")
  end

  def close
    termlen=24
    @ssh_session.close
  end

  def update_config
    @config = @ssh.cmd("show run")
    get_users
  end

  private
  def get_users
    @config.lines.each do |line|
      if line.include? "username"
        user = {}
        user[:username] = line.split[1]
        user[:password] = line.match(/(password|secret).\d.*/)[0].split[2]
        @users.push(user)
      end
    end
  end
end

This stuff is pretty old so I should probably review it and clean it up.
Anyhow feel free to use it. I am still learning Ruby myself. Criticisms are
welcome!

On Fri, Sep 21, 2012 at 12:38 AM, Jam Bees <jam@jamandbees.net> wrote:

> Net-ssh. Or capistrano!
>
> On Sep 21, 2012, at 12:29 AM, ajay paswan <lists@ruby-forum.com> wrote:
>
> > How to start/run a ruby program in a remote machine in a LAN using a
> > ruby program in local machine?
> >
> > --
> > Posted via http://www.ruby-forum.com/.
> >
>
>


-- 
http://about.me/cliffrosson
vizualize.me/cliffrosson

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I am no expert but I use this to manage devices.<div><br></div><div><div>re=
quire &#39;rubygems&#39;</div><div>require &#39;net/ssh&#39;</div><div>requ=
ire &#39;net/ssh/telnet&#39;</div><div><br></div><div>class SSH</div><div>
=A0 attr_accessor :errors</div><div>=A0=A0</div><div>=A0 def initialize(cre=
ds)</div><div>=A0 =A0 begin</div><div>=A0 =A0 =A0 @ssh_session =3D Net::SSH=
.start(creds[:host], creds[:user], :password =3D&gt; creds[:password], :key=
s =3D&gt; [])</div><div>
=A0 =A0 =A0 @ssh =3D Net::SSH::Telnet.new(&quot;Session&quot; =3D&gt; @ssh_=
session, &quot;Prompt&quot; =3D&gt; creds[:prompt])</div><div>=A0 =A0 =A0 @=
errors =3D false</div><div>=A0 =A0 rescue Exception =3D&gt; e</div><div>=A0=
 =A0 =A0 @errors =3D e</div><div>
=A0 =A0 end</div><div>=A0 end</div><div>=A0=A0</div><div>=A0 def cmd(comman=
d)</div><div>=A0 =A0 @ssh.cmd(command)</div><div>=A0 end</div><div>=A0=A0</=
div><div>=A0 def close</div><div>=A0 =A0 @ssh_session.close</div><div>=A0 e=
nd</div><div>=A0 =A0=A0</div><div>
end</div><div><br></div><div>I would then create something like this depend=
ing on the device type I was connecting to.</div><div><br></div><div><div><=
div>require &#39;./ssh.rb&#39;</div><div><br></div><div>class Cisco_ssh &lt=
; SSH</div>
<div>=A0 attr_accessor :config, :users</div><div>=A0 def initialize(creds)<=
/div><div>=A0 =A0 begin</div><div>=A0 =A0 =A0 @host =3D creds[:host]</div><=
div>=A0 =A0 =A0 @users =3D []</div><div>=A0 =A0 =A0=A0</div><div>=A0 =A0 =
=A0 creds[:prompt] =3D /.*&gt;|.*#/</div>
<div>=A0 =A0 =A0 super(creds)</div><div>=A0 =A0 =A0 @ssh.cmd(&quot;en\r#{cr=
eds[:enable]}&quot;)</div><div>=A0 =A0 =A0 @ssh.cmd(&quot;term len 0&quot;)=
</div><div>=A0 =A0 =A0=A0</div><div>=A0 =A0 =A0 @config =3D @ssh.cmd(&quot;=
show run&quot;)</div><div>=A0 =A0 =A0 get_users</div>
<div>=A0 =A0 rescue Exception =3D&gt; e</div><div>=A0 =A0 =A0 @errors =3D e=
</div><div>=A0 =A0 end</div><div>=A0 end</div><div>=A0=A0</div><div>=A0 def=
 enable(pass)</div><div>=A0 =A0 @ssh.cmd(&quot;en\r#{pass}&quot;)</div><div=
>=A0 end</div><div>=A0=A0</div><div>
=A0 def termlen=3D(length)</div><div>=A0 =A0 @ssh.cmd(&quot;term len #{leng=
th}&quot;)</div><div>=A0 end</div><div>=A0=A0</div><div>=A0 def close</div>=
<div>=A0 =A0 termlen=3D24</div><div>=A0 =A0 @ssh_session.close</div><div>=
=A0 end</div><div>=A0=A0</div>
<div>=A0 def update_config</div><div>=A0 =A0 @config =3D @ssh.cmd(&quot;sho=
w run&quot;)</div><div>=A0 =A0 get_users</div><div>=A0 end</div><div>=A0=A0=
</div><div>=A0 private</div><div>=A0 def get_users</div><div>=A0 =A0 @confi=
g.lines.each do |line|</div>
<div>=A0 =A0 =A0 if line.include? &quot;username&quot;</div><div>=A0 =A0 =
=A0 =A0 user =3D {}</div><div>=A0 =A0 =A0 =A0 user[:username] =3D line.spli=
t[1]</div><div>=A0 =A0 =A0 =A0 user[:password] =3D line.match(/(password|se=
cret).\d.*/)[0].split[2]</div><div>
=A0 =A0 =A0 =A0 @users.push(user)</div><div>=A0 =A0 =A0 end</div><div>=A0 =
=A0 end</div><div>=A0 end</div><div>end</div></div></div><div><br></div><di=
v>This stuff is pretty old so I should probably review it and clean it up. =
Anyhow feel free to use it. I am still learning Ruby myself. Criticisms are=
 welcome!</div>
<br><div class=3D"gmail_quote">On Fri, Sep 21, 2012 at 12:38 AM, Jam Bees <=
span dir=3D"ltr">&lt;<a href=3D"mailto:jam@jamandbees.net" target=3D"_blank=
">jam@jamandbees.net</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_qu=
ote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex=
">
Net-ssh. Or capistrano!<br>
<div class=3D"HOEnZb"><div class=3D"h5"><br>
On Sep 21, 2012, at 12:29 AM, ajay paswan &lt;<a href=3D"mailto:lists@ruby-=
forum.com">lists@ruby-forum.com</a>&gt; wrote:<br>
<br>
&gt; How to start/run a ruby program in a remote machine in a LAN using a<b=
r>
&gt; ruby program in local machine?<br>
&gt;<br>
&gt; --<br>
&gt; Posted via <a href=3D"http://www.ruby-forum.com/" target=3D"_blank">ht=
tp://www.ruby-forum.com/</a>.<br>
&gt;<br>
<br>
</div></div></blockquote></div><br><br clear=3D"all"><div><br></div>-- <br>=
<div><a href=3D"http://about.me/cliffrosson" target=3D"_blank">http://about=
.me/cliffrosson</a></div><a href=3D"http://vizualize.me/cliffrosson" target=
=3D"_blank">vizualize.me/cliffrosson</a><br>

</div>

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