# check-opnsense ## 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.