diff --git a/examples/000_initial_examples/etc_ansible_hosts b/examples/000_initial_examples/etc_ansible_hosts
deleted file mode 100755
index 56f0156..0000000
--- a/examples/000_initial_examples/etc_ansible_hosts
+++ /dev/null
@@ -1,12 +0,0 @@
-[loadbalancer]
-lb01 ansible_connection=local
-
-[webserver]
-app01 ansible_connection=local
-app02 ansible_connection=local
-
-[database]
-db01 ansible_connection=local
-
-[control]
-control ansible_connection=local
diff --git a/examples/000_initial_examples/hostname.yml b/examples/000_initial_examples/hostname.yml
deleted file mode 100644
index a1a3ad6..0000000
--- a/examples/000_initial_examples/hostname.yml
+++ /dev/null
@@ -1,5 +0,0 @@
----
-  - hosts: all
-    tasks:
-      - name: get server hostname
-        command: hostname
diff --git a/examples/000_initial_examples/your-first-hosts-file b/examples/000_initial_examples/your-first-hosts-file
deleted file mode 100644
index 4861c2d..0000000
--- a/examples/000_initial_examples/your-first-hosts-file
+++ /dev/null
@@ -1,12 +0,0 @@
-[loadbalancer]
-lb01
-
-[webserver]
-app01
-app02
-
-[database]
-db01
-
-[control]
-control ansible_connection=local
diff --git a/examples/001_apt/hosts b/examples/001_apt/hosts
index af525aa..0432cdd 100644
--- a/examples/001_apt/hosts
+++ b/examples/001_apt/hosts
@@ -1,5 +1,8 @@
 [database]
-192.168.0.2
+192.168.11.20
 
 [loadbalancer]
-192.168.0.3
\ No newline at end of file
+192.168.11.30
+
+[webserver]
+192.168.11.40
\ No newline at end of file
diff --git a/examples/002_become/database.yml b/examples/002_become/database.yml
index 82aa0f1..351450c 100644
--- a/examples/002_become/database.yml
+++ b/examples/002_become/database.yml
@@ -2,5 +2,5 @@
 - hosts: database
   become: true
   tasks:
-    - name: install mysql-server
-      apt: name=mysql-server state=present update_cache=yes
+    - name: install default-mysql-server
+      apt: name=default-mysql-server state=present update_cache=yes
\ No newline at end of file
diff --git a/examples/002_become/hostname.yml b/examples/002_become/hostname.yml
deleted file mode 100644
index a1a3ad6..0000000
--- a/examples/002_become/hostname.yml
+++ /dev/null
@@ -1,5 +0,0 @@
----
-  - hosts: all
-    tasks:
-      - name: get server hostname
-        command: hostname
diff --git a/examples/002_become/loadbalancer.yml b/examples/002_become/loadbalancer.yml
index 50881f9..81aba7d 100644
--- a/examples/002_become/loadbalancer.yml
+++ b/examples/002_become/loadbalancer.yml
@@ -3,4 +3,4 @@
   become: true
   tasks:
     - name: install nginx
-      apt: name=nginx state=present update_cache=yes
+      apt: name=nginx state=present update_cache=yes
\ No newline at end of file
diff --git a/examples/003_with_items/database.yml b/examples/003_with_items/database.yml
index 82aa0f1..d5595ef 100644
--- a/examples/003_with_items/database.yml
+++ b/examples/003_with_items/database.yml
@@ -2,5 +2,5 @@
 - hosts: database
   become: true
   tasks:
-    - name: install mysql-server
-      apt: name=mysql-server state=present update_cache=yes
+    - name: install default-mysql-server
+      apt: name=default-mysql-server state=present update_cache=yes
diff --git a/examples/003_with_items/hostname.yml b/examples/003_with_items/hostname.yml
deleted file mode 100644
index a1a3ad6..0000000
--- a/examples/003_with_items/hostname.yml
+++ /dev/null
@@ -1,5 +0,0 @@
----
-  - hosts: all
-    tasks:
-      - name: get server hostname
-        command: hostname
diff --git a/examples/004_services/database.yml b/examples/004_services/database.yml
index 06dd2cf..89a3baf 100644
--- a/examples/004_services/database.yml
+++ b/examples/004_services/database.yml
@@ -2,8 +2,8 @@
 - hosts: database
   become: true
   tasks:
-    - name: install mysql-server
-      apt: name=mysql-server state=present update_cache=yes
+    - name: install default-mysql-server
+      apt: name=default-mysql-server state=present update_cache=yes
 
     - name: ensure mysql started
       service: name=mysql state=started enabled=yes
diff --git a/examples/004_services/playbooks/stack_restart.yml.save b/examples/004_services/playbooks/stack_restart.yml.save
deleted file mode 100644
index 6be67be..0000000
--- a/examples/004_services/playbooks/stack_restart.yml.save
+++ /dev/null
@@ -1,17 +0,0 @@
----
-- hosts: database
-  become: true
-  tasks:
-    - name: reiniciar mysql
-      service: name=mysql state=restarted
-
-- hosts: loadbalancer
-  become: true
-  tasks:
-    - name: reiniciar nginx
-      service: name=nginx state=restarted
-
-- hosts: webserver
-  become: true
-  tasks:
-    service: name=apache2 state=restarted