On the Mac the new Little Snitch Mini is really nice for this: https://www.obdev.at/products/littlesnitch-mini/index.html https://www.obdev.at/products/littles

On the Mac the new Little Snitch Mini is really nice for this: https://www.obdev.at/products/littlesnitch-mini/index.html https://www.obdev.at/products/littlesnitch-mini/index.html Sure, you could manage /etc/hosts manually, but Little Snitch Mini has a nice interface for managing blocklists, auto-updates them, and has nice visualization, and you can also manage blocks per app.