I have a wordpress site which allows users to upload pictures for rating. I am using a frontend post plugin called accesspress anonymous post to allow users to upload from the front end.
The posts are published immediately, and I am having issues with people spamming the site with many posts. So I want something where it can track the users IP address and allow them to only post once every 24 hours. If they post more than once in 24hrs it will give them a message to wait. I know they could just change IP address, but this is a start.
Site is hosted on digitalocean using ubuntu.