Bob's Travel, Linux, Cybersecurity, and More

It's actually very easy to upgrade a Debian system from one major release to the next. Here's how to do that, plus troubleshooting the mess caused when you manage to break the "named" DNS service. Suggestions are provided for multiple ways to solve the problem, including full-system and single-service backup, archiving, and recovery.

Mycenae, about 50 kilometers south of Korinthos in the northeastern Peloponnese, was the center of what we now call the Mycenaean Greek culture from about 1800 BCE to the Late Bronze Age Collapse around 1200-1150 BCE. What you can see today include the hilltop citadel with the ruins of the ruler's palace including the megaron, the throne room in a design shared by the Minoans an...

Thorikos, one of the oldest settlements on the Attiki peninsula, has the oldest theatre in Greece. It dates to a period before the semicircular shape became the standard, it has an unusual oval configuration. Thorikos was an active lead and silver mining area back in the late Neolithic, and remnants of that industry persist. A Mycenaean settlement stood around the peak of the hi...

The high cliffs overlooking the sea at Cape Sounion form an obvious site for a temple. Even more so, a temple of Poseidon, the god of the sea. The location has a 180-degree view over the Aegean, making it also an obvious place to monitor any naval movements toward Athens, some 40 kilometers to the northwest. Mentioned by Homer and Byron, Sounion is a must-visit sight on the Atti...

The fortified city of Ramnous is only 38 kilometers in a straight line from the Acropolis in Athens, but it's in an isolated setting overlooking the sea. A sanctuary to the grim and implacable god Nemesis overlooks the ruined city. Ramnous and its fortified port guarded the shipping route from the grain farms of Euboea and eastern Boeotia to Athens. During the war between Athens...