Technically not from space since the lower stage never made it past the Karman line, which is 100km above sea level.

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I’m a long-time Samba fan, but even I wouldn’t run them as DCs in a production environment.

I used it on a laptop for a while. Pretty impressive just how lightweight it is, but a bit of a grind to initially get everything working as expected. Overall, I’m a big fan.

That only allows DNS-based blocking of domains, which isn’t going to be nearly as effective. A lot of modern ads are served up from the same domain that you’re visiting. Browser-based ad-blocker extensions are in a position to block domains, URLs, and specific parts of the HTML DOM itself. This is going to sound rude, and I’m sorry in advance, but when people bring up pi hole, I assume they aren’t very knowledgeable about how things work.