Posts in category sysadmin

25 Aug 2025

voiptoolbox.net SIP PCAP Viewer

SIP Dev SysAdmin Voiptoolbox

VoIP Toolbox now supports viewing SIP calls from a PCAP file direct in the browser.

24 Feb 2025

Calculating Tricky Zabbix Items with JavaScript

Dev SysAdmin

Parsing structured JSON in Zabbix is easy with JSONPath—until you need more advanced filtering or conditional logic. That’s where JavaScript preprocessing comes in.

02 Feb 2025

Not All SD Cards Are What They Seem

Reviews Dev SysAdmin

Did you know there's a whole raft of not-quite-genuine SD cards on the market? I only found out recently after buying some by accident.

30 Jan 2025

2024 Retrospective

Reviews Dev DIY SysAdmin Retrospective

The annual retrospective post that started in 2020 lives on for another year. Publishing right at the end of January 2025, I'd like to say it was a strategic move to avoid all the other 2024 reviews, but alas, I've just been a little slow to actually publish it.

12 Jul 2024

Why won't my Synology server stay shutdown?

Dev SysAdmin Synology

I've got an old (but trusty) Synology DS215j NAS. Cheap and cheerful. The only down side is that until recently you couldn't keep it off.

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