Restrict access by IP address IP address: Determine which IP addresses can access your machine. Wildcards (using an asterisk "*") are permitted. By default all machines (*) have access to the server except for administrative pages. To deny access to a particular machine or range of machines, specify the IP address or range (e.g., 137.182.141.229 or 137.182.141.*) and choose Deny. To deny access to all machines except for certain ones, choose Deny access to * (all machines); then choose Allow access to the specific machines which should have access. You can never deny access to your own machine, even if you accidentally list it in the Deny list. Allow or deny access: DenyAllow                         -> Remove checked items from restriction list:   IP access restrictions allow you to define which machines can or cannot access your BadBlue server. You can review your server's log files to determine which systems have recently attmpted to gain access.