Helping Users Understand Cybersecurity: Availability Becomes Reliability

Last week I explained how I thought that “Accuracy” was a better term than “Integrity” when we are communicating with users. The week before that, I said that “Privacy” is a better term than “Confidential”. This is part of my wild idea for replacing “CIA” with “PAR”. Privacy, Accuracy, and Reliability. What Does “Available” Mean […]
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New Year’s Resolution: How to Back Up Your Data

Last week I encouraged you to use Amazon’s cheap and extremely resilient Glacier service to archive your personal data. Let’s see how to do this. Glacier uses the same storage technology as S3, for just one-tenth the cost. The primary trade-off is that Glacier is intended for archiving data, not using it, and to get […]
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Here’s Why You Never Ignore Root’s Mail

A consulting client had asked for my help in a Solaris-to-Linux migration, and we had the big moves done. We were cleaning up, doing “while you’re here” tasks, just checking to verify that some things were working as expected. The backup process had moved to Linux about a year ago, and migrating web service of […]
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How Do LVM and RAID Compare?

LVM is storage distributed across several physical disks, which tempts people into thinking it has the same benefits as RAID. But in some ways LVM and RAID are opposites! In Learning Tree’s Linux server administration course we teach you about LVM, but we don’t try to convince you that it’s either great or dangerous. It […]
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