# Blockers Blockers are part of the {{crowdsec.name}} full stack integration. They allow you to block an IP at any level of your infra/stack. You can explore [available {{plugins.name}} on the hub]({{hub.plugins_url}}). Some core {{plugins.name}} are documented here : - [nginx lua helper](/blockers/nginx/installation/) - [netfilter a-la-fail2ban](/blockers/netfilter/installation/) - [wordpress plugin](/blockers/wordpress/installation/)