Drupal 8.x

Hi,

Hoping I'm missing something simple here...

I'm developing a module with a form that's working well, except that on a number of textfields I have an Ajax callback something like this:

1. PHP OPcode caching Not enabled
PHP OPcode caching can improve your site's performance considerably. It is highly recommended to have OPcache installed on your server.
Search index progress 100% (0 remaining)

2. Error Trusted Host Settings Not enabled
The trusted_host_patterns setting is not configured in settings.php. This can lead to security vulnerabilities. It is highly recommended that you configure this. See Protecting against HTTP HOST Header attacks for more information.

Hello there,
i just install Drupal 8 on a fresh wamp installation...
when i try to go into any admin link, every link in the page get me to the localhost dashboard of the wamp server.
Plus, there is no context menu on anything to edit bloc/menu...
hope i'm clear enough and that someone can give me a way to fix this.
I am new to the drupal world and i really wanted to learn how to use that cms.
Thanks in advance

Running Drupal 8 with PHP 5.5.14 on openSUSE Leap 42.1, I am unable to update from the admin pages.

Error message:

Failed to get available update data for one project.

The error log shows:

I just started playing with bootstrap multilevel dropdowns on bootstrap theme alpha1 for Drupal 8, (see screenshot below). Does anyone know what the limit is on how many levels of dropdown menus for Drupal 8?

Screenshot bootstrap multilevel dropdown menus drupal 8

Dear All,
I have a dedicated server and i want drupal 8 available as cpadon site software in CPanel for all clients.
Please help me where i can find Drupal's Vendor Information URL to complete my installation.