Converting to Drupal

Hello! Please help to set a variable in trusted_host_patterns settings.php. After installing Drupal 8 on OpenServer in the status report written: settings.php is not configured variable trusted_host_patterns. It is a potential security risk to your site. It is highly recommended to configure this parameter. More information is available on the page Protecting against HTTP HOST Header attacks.
After gugleniya found the following: you just Need to add settings in trusted_host_patterns settings.php your website:
/sites/default/settings.php

Hello There,

I am new to Drupal 8 and am not technical. I have a wordpress website which has around 2000 posts. I would like to migrate it to a Drupal 8 theme which I recently purchased. However, I am niot technically aware of the steps involved in the migration. I am using the latest version of Wordpress and I have a Drupal theme installed. It is a news website. I have Wordpress content lined up into categories. Could anyone please let me know the detailed steps involved in the migration? I hope and pray that these steps are not very technical in nature.

After much pulling of hair and screaming I think I have manged to migrate most of my content from D6 to D8.

My Forum content seems to have migrated, however I am faced with the following problems that I am looking for some help with.

Only one Forum Topic is listed ie: General Discussion

Although all forum posts seemed to be have been copied only one forum topic was created and it had no forum posts in it. The link to screenshot below shows one post.

Hi.

I try to import comments with migrate source csv plugin by analogue with nodes. With nodes & users import there is no problems, but when I import comments, I got error:
- Missing bundle for entity type comment.

My YAML:

Hi,

I'm using the shortcodes inside text areas to generate the dynamic data, so I need text format which will have disabled cache.

In d7 this was easy to do, I've just created new text filter:

Hello i am planing to develop a service like wix with drupal. that user can build website with drug and drop blocks. and this website have upgrade option.
my question is that is drupal license allow me to develop and run this kind of service ?