Configuring privacy and discussions
As this site is just for your team to use, you'll want to make it private so that only logged in users can access it. You'll also need to make some changes to the discussion settings so that logged in members can add comments.
Hiding the site from search engines
First, let's make sure that the site doesn't get picked up by search engines:
Go to Settings | Reading.
Check the Search Engine Visibility box, as shown in the following screenshot:
Click on the Save Changes button.
Now search engines will be discouraged from finding your site; this makes it less likely that people who shouldn't have access to your site will stumble upon it.
Configuring Discussion Settings
Now let's configure the discussion settings for the site. Follow these steps:
Go to Settings | Discussion.
On the Discussion Settings screen, check the following settings:
Allow people to post comments on new articles
Users must be registered and logged in to comment...