Tag

#dns

3 posts tagged #dns.

Field Note · Jul 8, 2026 · Colten Anderson

Turn on DNS scavenging without deleting records you still need

Windows DNS zones fill up with A and PTR records for servers you retired years ago. Aging and scavenging cleans them out, but a wrong interval deletes live records. Here is the careful way to enable it.
Analysis · May 11, 2026 · Colten Anderson

The .de outage was a TLD postmortem, not a patch you missed

DENIC's signing pipeline shipped two-thirds bad signatures during a routine ZSK rotation on May 5. Nothing in your environment caused it, and nothing in your environment could prevent it. Here's what you can still change at your resolver.
Analysis · May 3, 2026 · Colten Anderson

Spirit Airlines is dead. Its attack surface isn't.

The security story isn't that an airline went bankrupt. It's what happens to 132 APIs, years of customer PII, and a cloud footprint when a company dies overnight and nobody is left to decommission it.