A major outage has taken down key Ubuntu and Canonical infrastructure for more than 24 hours, leaving users without access to critical security updates and services.
Among the affected URLs are security.ubuntu.com, archive.ubuntu.com, canonical.com, ubuntu.com, and several developer and security API portals.
The downtime comes just hours after researchers published potent exploit code that grants untrusted users in data centers and universities full root control over servers running virtually all Linux distributions, including Ubuntu.
While updates remain available through mirror sites, the outage has crippled Ubuntu's ability to communicate directly with affected users about the threat.
It remains unclear why the infrastructure has remained offline for so long, especially given the availability of robust DDoS protection services.