The best way to find out if this works would be to call and see if the call is accepted and if you get something back from your AGI server and you can do this with automatically with Adhearsion!

What you will need is a wav file containing a DTMF sequence. You can create one with Adobe Audition for example (aka Cooledit before Adobe took over). The Trial version is enough to create the DTMF. Use a 300ms pause at least the other settings didn’t really work for me. Also don’t forget to set your Asterisk server to dtmfmod=inband.

I created a new adhearsion project and used the Simon game as start of and modified it to look like this:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36

methods_for :dialplan do
  def check_call
    CheckCall.new(self).start
  end
end
 
class CheckCall
 
  def initialize(call)
    @call = call
    @number='12345'
  end
 
  def start
    collect_attempt
    verify_attempt
  end
 
  def collect_attempt
    @attempt = @call.input @number.length,
      :timeout => 10.seconds    
  end
 
  def verify_attempt
    if attempt_correct? 
		# do something here
    else
		# do something else
    end
  end
 
  def attempt_correct?
    @attempt == @number
  end
 
end

What this does is check if the called server sent the DTMF sequence 12345 and if not it would do something.

You cold for example use growl and/or prowl for notification or use some SMS service for notification like lcx.at (I know, shameless self promotion).

Also don’t forget to activate drb in your adhersion project, do this in startup.rb

config.enable_asterisk
config.asterisk.enable_ami :host => "localhost", :username => "amiuser", :password => "amipassowrd", :events => true
 
config.enable_drb :host => "0.0.0.0", :deny => "0.0.0.0", :allow => ["127.0.0.1", "213.123.118.123"]

Ok now all we need is the script that triggers the call. This could look like this:

require 'drb'
@adhearsion = DRbObject.new_with_uri "druby://localhost:9050"
result = @adhearsion.originate({ :channel   => "SIP/....", 
                                 :context   => "checkcall", 
                                 :exten 	=> '4000',
                                 :priority  => 1,
                                 :callerid  => "43123456789",
                                 :async => 'true',                                     
                                 :variable  => "call_launcher=true|sleep_time=3600" })

So, this is it. I know this isn’t really a copy & paste howto, some things are missing but I don’t want to repeat things that can be read in the adhearsion documentation.
Oh, what I forgot to mention, I use a separate server which runs Asterisk to do the checks, the checks are NOT done form the same server I am checking, but I think this should be obvious.
If you need a VPS with this Setup, or need someone to verify your VoIP Servers, feel free to contact me!

apt-get install build-essential apache2 ruby1.8 zlib1g-dev libssl-dev mysql-server mysql-common libmysqlclient15-dev libmysqlclient15off apache2-prefork-dev

Create a link for ruby else the installer won’t work

ln -s /usr/bin/ruby1.8 /usr/bin/ruby

get Ruby Enterprise edition (http://www.rubyenterpriseedition.com/download.html)

tar xzvf ruby-enterprise-X.X.X.tar.gz
./ruby-enterprise-X.X.X/installer

Delete the Ruby link and create new links

rm /usr/bin/ruby
ln -s /opt/ruby-enterprise-1.8.6-20081215/bin/rake /usr/bin/rake
ln -s /opt/ruby-enterprise-1.8.6-20081215/bin/gem /usr/bin/gem 
ln -s /opt/ruby-enterprise-1.8.6-20081215/bin/rails /usr/bin/rails
ln -s /opt/ruby-enterprise-1.8.6-20081215/bin/ruby /usr/bin/ruby

Install Passenger

/opt/ruby-enterprise-1.8.6-20081215/bin/passenger-install-apache2-module

if you have this error

cd /opt/ruby-enterprise-1.8.6-20081215/lib/ruby/gems/1.8/gems/passenger-2.0.6
/opt/ruby-enterprise-1.8.6-20081215/bin/ruby -S rake clean apache2
/opt/ruby-enterprise-1.8.6-20081215/bin/ruby: No such file or directory -- rake (LoadError)

then it looks like the Rake GEM was not installed, just install it now. and don’t forget to create the symlink in /usr/bin !

/opt/ruby-enterprise-1.8.6-20081215/bin/gem install rake

Add this to /etc/apache2/apache2.conf

LoadModule passenger_module /opt/ruby-enterprise-1.8.6-20081215/lib/ruby/gems/1.8/gems/passenger-2.0.6/ext/apache2/mod_passenger.so
PassengerRoot /opt/ruby-enterprise-1.8.6-20081215/lib/ruby/gems/1.8/gems/passenger-2.0.6
PassengerRuby /opt/ruby-enterprise-1.8.6-20081215/bin/ruby

That’s it ! Now you can configure your vhosts.

<VirtualHost 192.168.0.1:80>
  ServerName foo.com
  DocumentRoot /var/rails/
 
  RailsBaseURI /project1
  RailsBaseURI /project2
  RailsBaseURI /project3
 
  Alias /docs "/opt/ruby-enterprise-1.8.6-20081215/lib/ruby/gems/1.8/gems/passenger-2.0.6/doc/Users guide.html"
</VirtualHost>

An finaly, the capistrano config in deploy.rb

set :application, "project1"
set :repository,  "https://svn.foo.com/project1"
set :user, 'root'
set :use_sudo, false
# If you aren't deploying to /u/apps/#{application} on the target
# servers (which is the default), you can specify the actual location
# via the :deploy_to variable:
set :deploy_to, "/var/rails/#{application}"
 
after "deploy:update_code", "deploy:chown"
 
role :app, "foo.com"
role :web, "foo.com"
role :db,  "foo.com", :primary => true
 
namespace :deploy do
  desc "Change owner"
  task :chown, :roles => :app do
    run "chown www-data:www-data -R #{latest_release}"
  end
  desc "Restart Application"
  task :restart, :roles => :app do
    run "touch #{current_path}/tmp/restart.txt"
  end
end

in case you have this error:

script/console production
Loading production environment (Rails 2.1.0)
/opt/ruby-enterprise-1.8.6-20081215/lib/ruby/1.8/irb/completion.rb:10:in `require': no such file to load -- readline (LoadError)
        from /opt/ruby-enterprise-1.8.6-20081215/lib/ruby/1.8/irb/completion.rb:10
        from /opt/ruby-enterprise-1.8.6-20081215/lib/ruby/1.8/irb/init.rb:252:in `require'
        from /opt/ruby-enterprise-1.8.6-20081215/lib/ruby/1.8/irb/init.rb:252:in `load_modules'
        from /opt/ruby-enterprise-1.8.6-20081215/lib/ruby/1.8/irb/init.rb:250:in `each'
        from /opt/ruby-enterprise-1.8.6-20081215/lib/ruby/1.8/irb/init.rb:250:in `load_modules'
        from /opt/ruby-enterprise-1.8.6-20081215/lib/ruby/1.8/irb/init.rb:21:in `setup'
        from /opt/ruby-enterprise-1.8.6-20081215/lib/ruby/1.8/irb.rb:54:in `start'
        from /usr/bin/irb:13

Then some things where missing during install. Let’s install that and compile readling.

cd /root/ruby-enterprise-1.8.6-20081215/source/ext/readline
 
ruby extconf.rb
checking for tgetnum() in -lncurses... no
checking for tgetnum() in -ltermcap... no
checking for tgetnum() in -lcurses... no
checking for readline/readline.h... no
 
apt-get install libncurses5-dev libreadline5-dev

Check once again if everything is installed

ruby extconf.rb
.
.
creating Makefile

and now compile

make
make install

So here is how I did it

You can stick with the original installation guide for the beginning. Get the sources of ImageMagick > 6.3, unfortunately the debian etch packages are to old so you have to compile it yourself!

After installing ImageMagick and RMagick you will have this problem:

1
2
3
4
5
6
7
8
9
10
11
12

irb -rubygems -r RMagick
/usr/lib/ruby/gems/1.8/gems/rmagick-2.8.0/lib/RMagick2.so: libMagickCore.so.1: cannot open shared object file: No such file or directory - /usr/lib/ruby/gems/1.8/gems/rmagick-2.8.0/lib/RMagick2.so (LoadError)
        from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:32:in `require'
        from /usr/lib/ruby/gems/1.8/gems/rmagick-2.8.0/lib/RMagick.rb:11
        from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:32:in `gem_original_require'
        from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:32:in `require'
        from /usr/lib/ruby/1.8/irb/init.rb:252:in `load_modules'
        from /usr/lib/ruby/1.8/irb/init.rb:250:in `each'
        from /usr/lib/ruby/1.8/irb/init.rb:250:in `load_modules'
        from /usr/lib/ruby/1.8/irb/init.rb:21:in `setup'
        from /usr/lib/ruby/1.8/irb.rb:54:in `start'
        from /usr/bin/irb:13

To solve this problem create a new ld.so config by creating a file /etc/ld.so.conf.d/local.conf and add these 2 lines:

1
2

/usr/lib
/usr/local/lib

and run ldconfig

But all of that is just marketing bullshit. We tell that to non-Linuxers because they wouldn’t understand the real reason. And when we say those false reasons enough, we might even start to believe them ourselves.

But deep underneath, the real reason remains.

We use Linux because it’s fun!

more …

If you get errors like this: error while loading shared libraries: libstdc++.so.6: cannot open shared object file: No such file or directory

Then install libstdc++6

* apt-get install libstdc++6

It’s that simple

Technorati Tags: debian, linux, howto

First you need Java JRE, lucky me I had a deb package on my server from some other tests so I didn’t need to create a new JRE deb package.
Follow this howto to create a debian package so you can install JRE the debian way. Once you installed the JRE you can continue with openfire.

Download openfire from http://www.igniterealtime.org/downloads/index.jsp
download the tgz file, the rpm installation with alien didn’t work for me on a AMD64, will probably work for i386.
unpack it move it to /opt

tar -xzvf openfire_3_0_0.tar.gz
mv openfire /opt

You don’t need to install any mysql java connector as mentioned on howtoforge, openfire now comes with everything you need.
Create a new database and create the tables with the provided file.
for example: mysql -u -p < /opt/openfire/resources/database/openfire_mysql.sql

Make sure openfire.xml is writeable:
# chmod 777 /opt/openfire/conf/openfire.xml

Now setup openfire over the webinterface: http://localhost:9090 or http://127.0.0.1:9090
or use whatever server it is running on instead of localhost.

Note: if you have something like this in your /etc/hosts file

127.0.0.1 foobar localhost localhost.localdomain

it won't work since it will try to connect with dbuser@foobar instead of dbuser@localhost which won't work!
change you /etc/hosts so that localhost is first!

Technorati Tags: linux, howto, jabber, openfire, debian

first get php5-dev (or php4-dev, depending on what you use)
apt-get install php5-dev

get eaccelerator from here and unpack it.
cd eaccelerator-0.9.5
phpize
./configure
make
make install

create the eaccelerator cache directories
mkdir /tmp/eaccelerator
chmod 0777 /tmp/eaccelerator

and add this to your php.ini (in my case: /etc/php5/apache2/php.ini )

extension=eaccelerator.so
eaccelerator.shm_size=64
eaccelerator.cache_dir=/tmp/eaccelerator
eaccelerator.enable=1
eaccelerator.optimizer=1
eaccelerator.check_mtime=1
eaccelerator.debug=0
eaccelerator.filter=
eaccelerator.shm_max=0
eaccelerator.shm_ttl=0
eaccelerator.shm_prune_period=0
eaccelerator.shm_only=0
eaccelerator.compress=1
eaccelerator.compress_level=9
eaccelerator.allowed_admin_path=/path/to/control.php

adjust the memory to whatever you like.
Copy the control.php to whatever path you like (must be some htdocs accessible path) and set the path in eaccelerator.allowed_admin_path= …
edit the file and user/password.
now restart apache and you are done! go to the link where control.php is and check if you can login and if it works.

Technorati Tags: debian, eaccelerator, server

Well, there was only one problem, I still had my two big discs in a RAID 0 array which can’t be expanded by a third disk so it was time to switch to LVM. Lucky me that I had 4 SATA disks for the server I am working on where I can move my data to free the disks for the LVM. It took awhile to move 600gigs but now everything is done and my fileserver is back online with a nice and big LVM that could be expanded …. if I had more power connectors for the hard disks and space in the case for a new disk, the harddisk in the photo that is outside of the case is really connected and running

LV        VG      Attr   LSize    Origin Snap%  Move Copy%
sharelv   sharevg -wi-ao  931.52G