Ubuntu Explained: How to ensure security and stability in cloud instances—part 3 | Ubuntu


Ubuntu updates: securing multiple Ubuntu instances while maximising uptime

Most people know that it is important to apply security updates. It can be challenging, however, to accomplish this while maximising the uptime of the services you are running on top. Every change, even applying security patches, carries some risk of disrupting your workloads. You therefore need to be deliberate about your update strategy.

This blog is the third in a three-part series by John Chittum (Engineering Manager, CPC) and Aaron Whitehouse (Senior Public Cloud Enablement Director). In the first part we covered the philosophy of Ubuntu’s releases, the archive’s structure and how packages are updated. In the second part, we explained how to update individual Ubuntu instances. That background will help you understand what we cover below, so please read those first before continuing.  

Ubuntu is a Debian-based Linux distribution which uses two primary package types: snaps and Debian (.deb)…

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