1. Block obdev.at in /etc/hosts by adding a line: 127.0.0.1 obdev.at how to edit hosts file 2. Block Little Snitch with Little Snitch, in Little Snitch Configuration click the New button, select Deny Connections at top, Choose Application: /Library/Little Snitch/Little Snitch UIAgent
Introduction The hosts file is a text file that maps hostnames to IP addresses. Upon typing a url address on the browser, the system is checking if there is a relevant entry on the hosts file and gets the corresponding IP address, else it resolves the IP via the active connection’s DNS servers.