diff --git a/README.md b/README.md
index cde9f0c..d1ff784 100644
--- a/README.md
+++ b/README.md
@@ -49,6 +49,10 @@ Directory structure:
     ├── configuration/
     │   ├── ... > OR HERE
     │
+    ├── modules/
+    │   ├── monitor
+    |       ├── ... > OR HERE
+    │
     └── helpers/
         ├── ...         
 ```
diff --git a/Rakefile b/Rakefile
index f873215..8fabb29 100644
--- a/Rakefile
+++ b/Rakefile
@@ -6,6 +6,17 @@ require 'rspec/core/rake_task'
 task default: :spec
 
 task spec: 'spec:all'
+task ssh: 'only:ssh'
+
+namespace :only do
+  host = ENV['TARGET_HOST'] || '10.1.209.20'
+  desc 'run ssh within the cluster'
+  RSpec::Core::RakeTask.new(:ssh) do |t|
+    puts "Running configuration tests on #{host} ..."
+    t.pattern = 'spec/services/ssh_spec.rb'
+    t.rspec_opts = '--format documentation'  # O "--format progress"
+  end
+end
 
 namespace :spec do
   host = ENV['TARGET_HOST'] || '10.1.209.20'
@@ -31,4 +42,11 @@ namespace :spec do
     t.pattern = 'spec/modules/monitor/*_spec.rb'
     t.rspec_opts = '--format documentation'  # O "--format progress"
   end
+
+  desc 'run configuration tests'
+  RSpec::Core::RakeTask.new(:configuration) do |t|
+    puts "Running configuration tests on #{host} ..."
+    t.pattern = 'spec/configuration/*_spec.rb'
+    t.rspec_opts = '--format documentation'  # O "--format progress"
+  end
 end
diff --git a/spec/services/ssh_spec.rb b/spec/services/ssh_spec.rb
index a00e920..2bdf22d 100644
--- a/spec/services/ssh_spec.rb
+++ b/spec/services/ssh_spec.rb
@@ -5,3 +5,26 @@
 describe port(22) do
   it { should be_listening }
 end
+
+describe 'Service is enabled and running' do
+  describe service('sshd') do
+    it { should be_enabled }
+    it { should be_running }
+  end
+end
+
+NODE_LIST = command('red node list 2>/dev/null').stdout.chomp.split("\n")
+describe 'Executing commands into nodes one by one' do
+  it 'There is at least one node in the list' do
+    expect(NODE_LIST).not_to be_empty
+  end
+
+  NODE_LIST.each do |node|
+    it "Executing basic echo on Node: #{node}" do
+      result = command("red node execute #{node} 'echo SERVERSPEC'")
+      expect(result.exit_status).to eq(0)
+      expect(result.stdout).to include(node.to_s)
+      expect(result.stdout).to include('SERVERSPEC')
+    end
+  end
+end