Posts in category sysadmin

30 Nov 2019

Packets Travelling Back In Time

Dev SysAdmin Perl SIP

A brief story about hunting down the issue that caused SIP packets to show out of order in a call logging system.

11 May 2019

Logging A Lot In Journald

Dev SysAdmin

I've been dealing with a service recently that, at least for a while longer, needs to log a serious amount of data. We are talking hundreds of thousands of lines every hour. The challenge was getting systemd to keep more than a days worth of data at this rate.

08 Jan 2019

A Story about Let’s Encrypt and my Synology NAS

Dev Let's Encrypt SysAdmin

New year, new (sysadmin) me, or something like that. Step one was to fix a failing backup jobs on my Synology NAS. As usual, things escalated.

14 Dec 2018

What is actually on this VPS?

Dev Kubernetes MySQL Netlify Perl SysAdmin

Every couple of years I rebuild my main development VPS for some reason or another. Months ago I realised that I had gradually worked my way up the DigitalOcean spec list but was now using a fraction of the resources. I held off rebuilding too soon though as I was relying on the IP address assigned for access to a particular work network. However, now that situation is resolved with something far less brittle it's time to get on with it.

01 Dec 2018

Bulk Updating Apache VirtualHost Ports

Dev SysAdmin

Is there a way to use variables in an Apache config file? Specifically for the port number in a `VirtualHost` block? The answer is, kind of...

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