/etc/hosts is a config file and not an application. you have to use an editor to modify it. run "editor /etc/hosts" in a terminal. could be that you need to boot into recovery mode to do the corresponding changes or even use a desktop cd and access your file system from the live system.
/etc/hosts is a config file and not an application. you have to use an editor to modify it. run "editor /etc/hosts" in a terminal. could be that you need to boot into recovery mode to do the corresponding changes or even use a desktop cd and access your file system from the live system.