Technical writing and personal notes by Stuart Johnston.https://blog.sigsec.net/https://blog.sigsec.net/blog/2018/09/aws-and-jekyll/https://blog.sigsec.net/blog/2018/09/aws-and-jekyll/This first post will detail some of the steps I went through to set up a working Jekyll-based blog hosted on Amazon S3. The steps will be messy and some...Wed, 05 Sep 2018 05:26:44 GMThttps://blog.sigsec.net/blog/2018/09/selling-on-ebay/https://blog.sigsec.net/blog/2018/09/selling-on-ebay/Recently I've tried my hand at selling some of my old electronics on eBay. While I've frequently purchased items from eBay in the past, I've not yet used it...Tue, 18 Sep 2018 10:22:02 GMThttps://blog.sigsec.net/blog/2018/11/email-on-your-own-domain/https://blog.sigsec.net/blog/2018/11/email-on-your-own-domain/In the last few days I've wanted to set up a domain for myself where I can host this blog and also get emails. The simple solution to the hosting problem is...Thu, 08 Nov 2018 21:34:09 GMThttps://blog.sigsec.net/blog/2018/12/push-notifications-with-python/https://blog.sigsec.net/blog/2018/12/push-notifications-with-python/Recently, I've had an interest in using push notifications to keep me updated. These are extremely common nowadays, but they're surprisingly difficult to...Tue, 04 Dec 2018 01:31:53 GMThttps://blog.sigsec.net/blog/2018/12/setting-up-jenkins-in-aws/https://blog.sigsec.net/blog/2018/12/setting-up-jenkins-in-aws/This is a bit of a follow-up post related to my earlier one about setting up [AWS and Jekyll][aws-and-jekyll-post]. In this instalment, I set up a Jenkins...Mon, 31 Dec 2018 12:57:18 GMThttps://blog.sigsec.net/blog/2019/01/2018-in-review/https://blog.sigsec.net/blog/2019/01/2018-in-review/Whenever I look back at the recent past, I often forget a lot of the things I've done, or gloss over them in my thoughts and don't give them the personal...Tue, 08 Jan 2019 23:21:59 GMThttps://blog.sigsec.net/blog/2019/03/sending-smses-from-python/https://blog.sigsec.net/blog/2019/03/sending-smses-from-python/In yet another article in the series of 'playing with Python', today we're looking at sending text messages! In Australia, Telstra allows you to evaluate and...Sun, 03 Mar 2019 23:59:35 GMThttps://blog.sigsec.net/blog/2019/03/sms-conversations-with-python/https://blog.sigsec.net/blog/2019/03/sms-conversations-with-python/Following on from my last post about [sending SMSes with Python][sending-smses-with-python], we're now going to look at ways to get SMS responses and how we...Sun, 10 Mar 2019 20:31:58 GMThttps://blog.sigsec.net/blog/2019/03/slack-for-push-notifications/https://blog.sigsec.net/blog/2019/03/slack-for-push-notifications/Following on from my post about [Push notifications with Python][push-notifications-post], I've recently been looking at using Slack for more advanced...Sun, 17 Mar 2019 21:45:55 GMThttps://blog.sigsec.net/blog/2019/03/nfc-fun-with-python/https://blog.sigsec.net/blog/2019/03/nfc-fun-with-python/I've recently been looking into using an NFC reader/writer pad at work to make configuring some devices we have much quicker and easier, as the standard...Sun, 31 Mar 2019 21:48:33 GMThttps://blog.sigsec.net/blog/2019/04/reading-and-writing-nfc-tags/https://blog.sigsec.net/blog/2019/04/reading-and-writing-nfc-tags/Now that we've resolved all of the major [teething issues we had][nfc-fun-with-python] with Python 3 and nfcpy, we can look at reading the contents of tags...Sun, 07 Apr 2019 23:10:40 GMThttps://blog.sigsec.net/blog/2019/04/tls-with-s3-static-websites/https://blog.sigsec.net/blog/2019/04/tls-with-s3-static-websites/It's been quite a while since I [set up my blog][aws-and-jekyll] using AWS S3's static website hosting and while it's been great so far, there's one long-...Tue, 23 Apr 2019 13:10:26 GMThttps://blog.sigsec.net/blog/2019/05/garmin-connect-code-exploration/https://blog.sigsec.net/blog/2019/05/garmin-connect-code-exploration/I'm a big fan of fitness tech, and one of my favourite devices is my Garmin fēnix-series sports watch. [Garmin's Connect][garmin-connect-homepage] platform...Wed, 01 May 2019 07:07:14 GMThttps://blog.sigsec.net/blog/2019/06/my-first-time-with-a-3d-printer/https://blog.sigsec.net/blog/2019/06/my-first-time-with-a-3d-printer/Recently, work bought a 3D printer for prototyping and to encourage staff innovation and creativity. It's been quite fun playing around with it and seeing...Sat, 29 Jun 2019 11:58:09 GMThttps://blog.sigsec.net/blog/2019/07/parametric-3d-design/https://blog.sigsec.net/blog/2019/07/parametric-3d-design/I mentioned in my [last post][first-3d-printing-post] that we'd had a 3D printer at work for a couple of months. In that time there's been a lot of hype and...Sat, 06 Jul 2019 07:39:51 GMThttps://blog.sigsec.net/blog/2019/09/a-holiday-in-bali/https://blog.sigsec.net/blog/2019/09/a-holiday-in-bali/I recently flew to Bali for a holiday with my partner and some of my family. It was a really good trip for me to unwind, relax, and take some time away from...Tue, 24 Sep 2019 11:47:41 GMThttps://blog.sigsec.net/blog/2019/09/two-factor-totp-codes/https://blog.sigsec.net/blog/2019/09/two-factor-totp-codes/Two-Factor authentication is a good way of increasing login security in systems, and is now quite widespread: it's the six digit number that rolls over every...Sat, 28 Sep 2019 10:59:09 GMThttps://blog.sigsec.net/blog/2026/06/installing-under-floor-insulation/https://blog.sigsec.net/blog/2026/06/installing-under-floor-insulation/Our new house gets pretty cold in Winter; it turns out having no insulation is not a lot of fun.Sun, 07 Jun 2026 11:24:23 GMT