Several apps have been designed to help people stay away from distracting websites. However, none of the ones I've identified meets my specific needs, which are to block the websites I choose on all browsers on an Ubuntu OS.
RescueTime does not block websites, but only tracks the amount of time a user spends on them. LeechBlock is an add-on specific to the Firefox browser. Anti-Social and Freedom work only with Windows and Mac OSes.
Of course I could simply edit my /etc/hosts file, but I want something harder to over-ride than this.
Has anyone found a good app, or a good strategy, for blocking distracting websites on Ubuntu?
EDIT: I just found DansGuardian, but this seems as easy to over-ride as is editing the /etc/hosts file.