Drupal

To Check the Drupal

curl https://{ip}/ | grep 'content="Drupal'

Version

Check /CHANGELOG.txt

curl -s http://drupal-site.local/CHANGELOG.txt | grep -m2 ""

Register

In /user/register just try to create a username and if the name is already taken it will be notified:

Request new password

If you request a new password for an existing username:

If you request a new password for a non-existent username:

Get number of users

Accessing /user/<number> you can see the number of existing users, in this case is 2 as /users/3 returns a not found error: