diff --git a/content/post/13-migration-opnsense-proxmox-highly-available.md b/content/post/13-migration-opnsense-proxmox-highly-available.md
index d0eca1b..801034f 100644
--- a/content/post/13-migration-opnsense-proxmox-highly-available.md
+++ b/content/post/13-migration-opnsense-proxmox-highly-available.md
@@ -166,3 +166,5 @@ In the section `System` > `High Availability` > `Status`, I can verify is the sy
 ![opnsense-high-availability-status.png](img/opnsense-high-availability-status.png)
 
 ### Firewall
+
+Let's configure the core feature of OPNsense, the firewall.
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