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Phil's Blog

The thoughts and ramblings of an Engineer

About Me

I’m an Engineer, working for Vonage. I write about stuff that interests me - primarily Networks, Software Engineering, VoIP and Electronics. It exists in the hope that someone may learn from my thoughts and ramblings. I'm on GitHub! I'm also currently fairly active on Twitter and LinkedIn.

MySQL Logo
20 January, 2022 Blog

MySQL: Generating a new “random” number which isn’t already present in a table

The Problem You have a list of numbers in a table and you want to generate a new number, between

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AWS Logo
14 January, 2022 Blog

AWS Aurora Global Clusters Explained: What you wish they told you before you built it

AWS Aurora Global is, on the face of it, a decent product. Aurora is a MySQL fork with a tonne

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Gradle Logo
4 January, 2022 Blog

Running Amazon DynamoDB Local (Docker) with Gradle

DynamoDB Local is a Java application which you can run locally to test your applications against DynamoDB, without the need

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Docker Logo
30 December, 2021 Blog

Running Docker Containers (from AWS ECR) with Systemd

Systemd units can be used to automatically start Docker containers on boot. Systemd, by default, will also monitor for the

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Ansible Logo
15 December, 2021 Blog

Ansible: Automatically Generate and Verify AWS ACM Certificate

Ansible’s AWS ACM module didn’t, at time of writing, support generating new certificates. ACM certificates can be programatically generated and

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KY-32/A PCB
26 July, 2021 Blog

Repairing an Air Conditioner Unit (Slow or no Fan)

Intro to AC Units An air conditioning unit isn’t a hugely complex bit of kit. Its major electrical components are

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Electronics Lab
6 July, 2021 Blog

Building an Electronics Lab

I’ve recently gotten back into Electronics projects. Given the raft of small components and tools you need, it’s tricky to

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BT 6000 Baby Monitor Repair
30 June, 2021 Blog

Repairing the BT 6000 Baby Monitor Parent Unit

Intro Looking around online, it seems this unit breaks a lot. Mostly the cause of the breakage seems to be

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Yealink T58A
28 August, 2020 Blog

A tale of VoIP, NAT and some confused Engineers

Foreword NAT and PAT, in their many forms, are so common these days that almost all of CloudCall’s customers use

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AWS Logo
14 August, 2020 Blog

The trials and tribulations of running statically linked 32 bit binaries in AWS Lambda

Foreword AWS Lambda is absolutely wonderful. The ability to deploy code and have it triggered by a variety of sources

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