M4 Blocked IPs
From Kolmisoft Wiki
Go to SECURITY -> Blocked IPs to manage blocked IPs. An IP can be blocked by clicking the BLOCK NEW IP button, entering valid form values and by clicking the BLOCK IP button. The to-be-blocked IP must not be local or a current server IP. By clicking on the UNBLOCK button an IP is unblocked. All the blocking/unblocking changes will be active in one minute after they have been applied.