Hey guys, I’m a small business owner with 10 employees who is in dire need of some assistance. To be specific, I’m struggling with upping our security game due to some employees wandering around the web during their work time. These are all mainly older people who aren’t necessarily aware of what they’re doing (accessing shady sites). I also have one employee, who is essential due to his experience and knowledge, indispensable really, who loves to gamble online while on the clock.
My situation is delicate in the fact that I can’t be too harsh with these people as my business depends on them for the most part (long story). What I can do is somehow prevent them from accessing specific sites, and then blame the ISP or something for the lack of service.
I’ve read about DNS filtering as an option, so I was wondering how that works? I figure that I could filter out sites like the one my colleague likes to visit. For example, http://www.headlinecasinos.com/features/top-4-uk-celebrity-themed-slot/ is easy to filter out based on keywords alone, but how do I add sites to the filter that don’t have keywords in the URL? Is there a way to do an inverse filter where I can set a list of sites that are accessible, rather than creating a whole list of sites that are off limits? Also, is this something that can be done in-house, or do I need to outsource this job to a contractor?