2.5 Admins 257: Outage365

Two recent outages were handled very differently but show the dangers of centralisation, Let’s Encrypt is introducing certificates for IP addresses, and the differences between backup and production systems.

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Microsoft’s 19-hour Outlook outage exposes fragility in cloud infrastructure

Cloudflare 1.1.1.1 incident on July 14, 2025

We’ve Issued Our First IP Address Certificate

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