From e8e1d9022dc06a38876580c6442b0ba7c203d0cc Mon Sep 17 00:00:00 2001
From: Thorsten Spille <thorstenspille@users.noreply.github.com>
Date: Wed, 19 Jan 2022 17:36:55 +0100
Subject: [PATCH] Update README.md

---
 README.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/README.md b/README.md
index 5e1c6da..1c7f410 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,11 @@
 
 ## How to install
 
+SSH into your OPNsense:
 ```
 fetch -o /usr/local/etc/rc.syshook.d/start/99-checkmk_agent https://github.com/bashclub/check-opnsense/raw/main/opnsense_checkmk_agent.py
 chmod +x /usr/local/etc/rc.syshook.d/start/99-checkmk_agent
 /usr/local/etc/rc.syshook.d/start/99-checkmk_agent
 ```
+
+Ensure you create a packet filter rule to allow connections from your checkmk server to the firewall on port 6556.