diff --git a/module/host/config.php b/module/host/config.php
index c2a00ddb11..e078754ff6 100644
--- a/module/host/config.php
+++ b/module/host/config.php
@@ -5,6 +5,7 @@ $config->host->changestatus = new stdclass();
 $config->host->create->requiredFields = 'name,intranet,extranet';
 $config->host->edit->requiredFields   = 'name,intranet,extranet';
 $config->host->create->ipFields       = 'intranet,extranet';
+$config->host->create->intFields      = 'diskSize,memory';
 
 $config->host->editor = new stdclass();
 $config->host->editor->changestatus = array('id' => 'reason', 'tools' => 'simple');
diff --git a/module/host/config/form.php b/module/host/config/form.php
index cd9f792fb6..e88bb4e93b 100644
--- a/module/host/config/form.php
+++ b/module/host/config/form.php
@@ -3,8 +3,8 @@ $config->host->form = new stdclass();
 $config->host->form->create = array();
 $config->host->form->create['name']       = array('type' => 'string', 'required' => true,   'default' => '');
 $config->host->form->create['cpuNumber']  = array('type' => 'int',    'required' => false,  'default' => 0);
-$config->host->form->create['diskSize']   = array('type' => 'float',  'required' => false,  'default' => 0);
-$config->host->form->create['memory']     = array('type' => 'float',  'required' => false,  'default' => 0);
+$config->host->form->create['diskSize']   = array('type' => 'string',  'required' => false,  'default' => '');
+$config->host->form->create['memory']     = array('type' => 'string',  'required' => false,  'default' => '');
 $config->host->form->create['group']      = array('type' => 'string', 'required' => false,  'default' => '');
 $config->host->form->create['serverRoom'] = array('type' => 'int',    'required' => false,  'default' => '');
 $config->host->form->create['osName']     = array('type' => 'string', 'required' => false,  'default' => '');
@@ -18,8 +18,8 @@ $config->host->form->create['desc']       = array('type' => 'string', 'required'
 $config->host->form->edit = array();
 $config->host->form->edit['name']       = array('type' => 'string', 'required' => true,   'default' => '');
 $config->host->form->edit['cpuNumber']  = array('type' => 'int',    'required' => false,  'default' => 0);
-$config->host->form->edit['diskSize']   = array('type' => 'float',  'required' => false,  'default' => 0);
-$config->host->form->edit['memory']     = array('type' => 'float',  'required' => false,  'default' => 0);
+$config->host->form->edit['diskSize']   = array('type' => 'string',  'required' => false,  'default' => '');
+$config->host->form->edit['memory']     = array('type' => 'string',  'required' => false,  'default' => '');
 $config->host->form->edit['group']      = array('type' => 'string', 'required' => false,  'default' => '');
 $config->host->form->edit['serverRoom'] = array('type' => 'int',    'required' => false,  'default' => '');
 $config->host->form->edit['osName']     = array('type' => 'string', 'required' => false,  'default' => '');
diff --git a/module/host/zen.php b/module/host/zen.php
index 2fd7f4bc91..de11af248a 100644
--- a/module/host/zen.php
+++ b/module/host/zen.php
@@ -31,9 +31,23 @@ class hostZen extends host
             dao::$errors['desc'] = $this->lang->host->notice->descLength;
         }
 
+        $intFields = explode(',', $this->config->host->create->intFields);
+        foreach($intFields as $field)
+        {
+            if(!$formData->{$field}) continue;
+
+            if(!preg_match("/^-?\d+$/", $formData->{$field}))
+            {
+                dao::$errors[$field] = $this->lang->host->notice->{$field};
+            }
+        }
+
+
         $ipFields = explode(',', $this->config->host->create->ipFields);
         foreach($ipFields as $field)
         {
+            if(!$formData->{$field}) continue;
+
             $ipList = explode(',', $formData->{$field});
             foreach($ipList as $ip)
             {