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Home / security
mei 05, 2019
eelco
Apple, security, techblog
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Objective by the Sea 2 preparations

So now the I registered for the Objective by the sea conference in June, there are a couple of preparations to take care off. Objective by the sea is a MacOS security conference by Patrick Wardle. I’ve been a supporter of his work via Patreon for quite some time, but I have never ran any […]

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okt 27, 2017
eelco
english, firewall, FreeBSD, OPNsense, security, techblog
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PC Engines APU2 with OPNsense firewall on top as homelab gateway

There has always been some testing going on at home, but with the introduction of an extra firewall, there will be a separate network for tinkering and trials at home. First I decided to buy an APU2 board from PC Engines. Although the APU first generation I had got fried quickly, their new version had […]

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okt 13, 2017
eelco
nederlands, security, techblog
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Vandaag CISSP examen gehaald

Eind vorig jaar liep ik al met het idee om een security gerelateerde certificering te gaan halen. Mensen die met me gewerkt hebben weten dat ik altijd oog heb voor de security aspecten in mijn werk. Het leek me leuk en goed om dit bevestigen in een certificering. Het was me niet direct duidelijk welke […]

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sep 29, 2017
eelco
Apple, english, KeepassX, security, techblog, yubikey
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Protecting Keepass databases with yubikey on MacOS

Looking for alternate or additional protection for my Keepass databases, I stumbled upon a fork of KeepassX that actually has some nice new features. One of those is the ability to use a yubikey as the key or as an additional key to the password database. The fork KeepassXC released a version with yubikey support […]

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sep 29, 2017
eelco
Apple, english, security, techblog, yubikey
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Locking and unlocking MacOS using a yubikey

Some time ago I bought a couple of Yubikeys, but actually start using them ended up on the todo list. But now I can easily unlock and lock my apple laptop with my yubi key. Unlocking is just done using the standard pam module and the configuration described at the yubikey website. But getting my […]

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jun 18, 2017
eelco
english, security, SSL, techblog, TLS
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Reliq from the past

Never forget #diginotar #pki #trust 

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apr 16, 2016
eelco
BYOD, security, techblog
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Improving security by sandboxing work for different purposes on my laptop

During my freelancing time over the last couple of years, I’ve been trying different setups that would satisfy my wish to use a single laptop for different  clients whilst maintaining proper security. After all, I do not want to explain my client that their servers got infected with Crapware because I felt the need to run […]

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feb 12, 2016
eelco
debian, security, SSL, techblog, TLS
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Check your smtp security with TLS receiver test

I’ve used a webservice to check the TLS settings on a secured website numerous times (ssllabs.com). But I’ve only recently discovered a TLS/SSL testing service that checks if third parties can securely deliver mail on you mailserver. Using http://www.checktls.com/ I was able to test my mailserver setup. This uncovered a minor issue with my TLS […]

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