Information Security Consultant | DevSecOps |  Developer

Leaving CAN

Wed, 20 May 2026 07:23:56 +0000

Reflecting on my role at CAN, and what is next

Coming to terms with the diagnoses of autism (ASD)

Mon, 17 Nov 2025 14:41:58 +0000

My journey into the diagnoses of autism (ASD) and the challenges it gave me.

Starting at CertificeringsAdvies Nederland

Mon, 21 Jul 2025 05:04:42 +0000

The next step in my career. I have started at CAN.

Adding another certificate: CCSP

Wed, 24 Jul 2024 06:39:38 +0000

One year after my decision to achieve CISSP, it is time for another certificate. This time it is going to be CCSP

Upgrading Home Router (again)

Sun, 26 May 2024 15:12:50 +0000

Upgrading my router platform, again...

Securing HomeLab with Private PKI

Sun, 19 May 2024 06:48:14 +0000

How I secured the services running on the Home Lab

Opportunities in life

Wed, 01 May 2024 12:57:36 +0000

Sometimes life will take a different direction, this is one of those moments

Goodbye VPN, welcome TwinGate

Thu, 25 Apr 2024 06:51:44 +0000

My VPN suddenly stopped working, why?

Adding Fast Storage to NAS

Sun, 31 Mar 2024 09:23:28 +0000

Running into timeout problems with the K8s applications

Upgrading my NAS Server for my Home Lab

Sun, 31 Dec 2023 09:06:47 +0000

Upgrading the NAS hardware and moving to TrueNAS Scale

RoadLab Setup

Fri, 11 Aug 2023 07:06:14 +0000

How I achieved control & security when on the road!

How I became a CISSP!

Sat, 24 Jun 2023 07:22:08 +0000

Early January this year I decided to achieve the goal of becoming CISSP certified this year. These are ny experiences so far.

Big Leap of Faith

Wed, 01 Mar 2023 06:37:02 +0000

Starting today I am fully committed to be working as a freelancer.

Last post of the year and a new challenge!

Sat, 31 Dec 2022 06:00:00 +0000

The time has come for a new challenge, I have left Pro Warehouse and am starting a new challenge.

Documentation & Upgrading the network!

Tue, 27 Dec 2022 08:00:53 +0000

Post about documenting my Home Network and upgrading to a managed network.

Coding my site, why I moved away from Publii!

Mon, 26 Dec 2022 13:00:00 +0000

Already changing my blogging workflow. Moving from Publii to coding my site with Hugo with markdown in creating the pages.

Upgrading my 27" iMac 5K

Mon, 14 Nov 2022 00:00:00 +0000

Upgrading a 4.5 year old iMac 27" 5K with a very fast SSD!

Migrating away from Digital Ocean

Sun, 05 Jun 2022 00:00:00 +0000

Moving away from Digital Ocean hosting to Strato

Adding JBOD Enclosure

Sat, 04 Jun 2022 00:00:00 +0000

About adding a storage enclosure to the TrueNAS server.

Running the SuperMicro Motherboard

Sat, 22 Jan 2022 00:00:00 +0000

Upgrading the Motherboard of my NAS server to a SuperMicro board.

Update on the TrueNAS Solution

Sat, 01 Jan 2022 00:00:00 +0000

Owning up a mistake, and how to solve it.

Goodbye MacMini Server, Hello TrueNAS!

Sat, 25 Dec 2021 00:00:00 +0000

Why I choose to migrate away from Apple as a server platform, and what the improvements are.

Solving routing issue in Private VPS Cloud

Sun, 02 May 2021 00:00:00 +0000

How-to create a routed layer2 network in a hosted VPS environment.

Improved Router at Home

Sat, 06 Feb 2021 00:00:00 +0000

Upgrading the security in my home lab with a OPNSense Firewall Solution.

New Cloud Server

Thu, 05 Nov 2020 00:00:00 +0000

Upgrading my VPS to FreeBSD and replacing Wordpress with Publii (Static Site Generator

Visit to the Veluwe

Fri, 16 Oct 2020 00:00:00 +0000

Post about life outside working with computers.

Change in Career

Mon, 18 Jun 2018 00:00:00 +0000

Starting at Pro Warehouse

Philips Connected Health Devices

Mon, 17 Jul 2017 00:00:00 +0000

Portfolio post about the iOS native Library (internal SDK) I helped developing. Using Core Bluetooth

The Phoenix Project

Fri, 17 Mar 2017 00:00:00 +0000

Post about keeping informed on the topic of DevOps in a very relatable story.

Create a BOOL in KeyBoard Maestro in If-then action.

Sun, 12 Apr 2015 00:00:00 +0000

How-to add a BOOL value to be used in KeyBoard Maestro in the if-else statement

Pain Treatment App for Philips

Sun, 12 Apr 2015 00:00:00 +0000

Portfolio post about the pain treatment app I helped developing. Using Core Bluetooth

Native rebuilds for SNS REAAL N.V.

Tue, 25 Mar 2014 00:00:00 +0000

Portfolio post about the rebuilding the SNS apps into native iOS apps.

Code Sign hell: Multiple Distribution Certificates

Fri, 15 Feb 2013 00:00:00 +0000

How to solve having multiple Distribution Certificates with the same Common Name attribute. In other words when you have both an Apple Enterprise Developer Account and a Apple AppStore Developer Account.

Mon, 01 Jan 0001 00:00:00 +0000

About Me

I am a experienced Information Security Consultant with extensive experience in various fields in IT.

The common thread in my work is that I have always been concerned with information security in the broadest sense of the word. From securing the data communication between the office and a inland-ship to fulfilling the role of Security Officer as part of the ISO 27001 certification in 2022.

Next to my operational work I get a lot of pleasure from sharing knowledge; from a brainstorming session at a whiteboard to providing a security awareness session or providing a explanation session about a private cloud solution to both engineers and non-engineers.

Mon, 01 Jan 0001 00:00:00 +0000

Nefkens ICT

Arnold Nefkens

Koolwitjestraat 1
1432 NM Aalsmeer
The Netherlands

iPhone: +3163 489 4050

KVK: 34378507
BTW: NL001863386B26