Category: Public Cloud

22 Sep 2021 Public Cloud 👁 25 views

How to Scale Cloud Consumption Without Costly Mistakes

Introduction This article follows on from the “Cloud Migrations Crusade” blog post… A single tenancy datacenter is a fixed scale, fixed price service on a closed network. The costs of the resources in the datacenter are divided up and shared out to the enterprise constituents on a semi-random basis. If anyone uses less resources than […]

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23 Mar 2021 Public Cloud 👁 29 views

AWS S3 ETags: Verify File Integrity Using MD5 Hashes

I was playing with S3 the other day an I noticed that a file which I had uploaded twice, in two different locations had an identical ETag. This immediately made me think that this tag was some kind of hash. So I had a quick look AWS documentation and this ETag turns out to be […]

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15 Mar 2021 Public Cloud 👁 27 views

TPC-H Test Data for AWS Redshift and EMR: Setup Guide

If you need to test out your big data tools below is a useful set of scripts that I have used in the past for aws emr and redshift the below might be helpful:

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10 Mar 2021 Public Cloud 👁 41 views

SSH EC2-User Login Fix for WordPress Bitnami Instances

So after getting frustrated (and even recreating my ec2 instances) due to a “Permission denied (publickey)”, I finally released that the worpress builds by default as set up for SSH using the bitnami account (or at least my build was). This means each time I login using ec2-user I get: Being a limited human being, […]

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04 Mar 2021 Public Cloud 👁 25 views

AWS Error Messages, API Standards & Region Defaults: Fix Needed

This is a short blog, and its actually just simple a plea to AWS. Please can you do three things? North Virginia appears to be the AWS master node. Having this region as a master region causes a large number of support issues (for example S3, KMS, Cloudfront, ACM all use this pet region and […]

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28 Jan 2021 Corporate Culture 👁 23 views

Public Cloud Migration: Why Lift-and-Shift Strategies Fail

The cloud is hot…. not just a little hot, but smokin hot!! Covid is messing with the economy, customers are battling financially, the macro economic outlook is problematic, vendor costs are high and climbing and security needs more investment every year. What on earth do we do??!! I know…. lets start a crusade – lets […]

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20 Oct 2020 Public Cloud 👁 23 views

IAM Policy to Enforce EBS Encryption on EC2 Instances

Here is a useful IAM conditional policy which will force EBS volumes to be encrypted when created by an EC2 instances.

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