diff --git a/scripts/gitlab.sh b/scripts/gitlab.sh
index 08258b0..4bb101a 100755
--- a/scripts/gitlab.sh
+++ b/scripts/gitlab.sh
@@ -1,13 +1,11 @@
 #!/bin/bash
 
 DATABASE_HOST=$1
-THIS_HOST=$2
 
-if [[ ! "$DATABASE_HOST" || ! "$THIS_HOST" ]]
-        then
-        echo " Parametros nao encontrados."
-        echo " ./mailman.sh <DATABASE_HOST> <LOCAL_IP> "
-        exit -1
+if [[ ! "$DATABASE_HOST" ]]
+    then
+    echo "Uso: ./gitlab.sh <DATABASE_HOST>"
+    exit -1
 fi
 
 [ -s "$HOME/.rvm/scripts/rvm" ] && . "$HOME/.rvm/scripts/rvm"
diff --git a/scripts/users.sh b/scripts/users.sh
new file mode 100644
index 0000000..e9e8408
--- /dev/null
+++ b/scripts/users.sh
@@ -0,0 +1,37 @@
+#!/bin/bash
+
+# Make sure to create user colab and colabdev group
+COLAB_USER=colab
+COLAB_GROUP=colabdev
+
+# Get user and group
+COLAB_USER_EXISTS=`cat /etc/group | grep $COLAB_USER:`
+COLAB_GROUP_EXISTS=`cat /etc/group | grep $COLAB_GROUP:`
+
+# Errors
+ERROR_NOT_ALLOWED=126
+ERROR_ALREADY_EXIST=9
+
+# Make sure colab user exist
+if [ -e $COLAB_USER_EXISTS ]; then 
+    sudo adduser $COLAB_USER; 
+    LAST_CMD=`echo $?`
+    if [ $LAST_CMD == $ERROR_NOT_ALLOWED ]; then
+        echo "You don't have permission to create users"
+        echo "Aborting installation"
+        exit -1
+    fi
+fi
+
+# Make sure colab group exist
+if [ -e $COLAB_GROUP_EXISTS ]; then 
+    sudo groupadd $COLAB_GROUP; 
+    LAST_CMD=`echo $?`
+    if [ $LAST_CMD == $ERROR_NOT_ALLOWED ]; then
+        echo "You don't have permission to create groups"
+        echo "Aborting installation"
+        exit -1
+    fi
+fi
+
+
--
libgit2 0.21.2