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Marc Dahan

Marc is a technology journalist with over 15 years experience. He specializes in content related to emerging technologies, cybersecurity, big data, privacy, artificial intelligence, and the politics of technology.

He has worked for some of the largest tech companies (Deluxe Digital, Sony, Autodesk) and is passionate about online privacy and digital freedom.

Articles by Marc

If you're looking to set up a road warrior VPN in OPNsense, this guide can help. In this post, we guide you through all the steps using WireGuard in OPNsense. Check it out below.
By Marc Dahan in VPN & Privacy on September 9, 2023
If you've ever been curious as to what TUN and TAP adapters that appear on your system after installing a VPN app are, this post has you covered. We provide an overview below.
By Marc Dahan in VPN & Privacy on September 8, 2023
Recently switched to OPNsense from pfSense and you miss the pfBlickerNG package? You're not alone. This post guides you through all the steps to reproduce pfBlockerNG functionality in OPNsense.
By Marc Dahan in VPN & Privacy on August 26, 2023
pfSense CE is an open-source router/firewall, based on FreeBSD. In this guide, we show you how to set up a captive portal in pfSense.
By Marc Dahan in VPN & Privacy on August 25, 2023
Ads are annoying, abonoxious, invasive, and they eat up your bandwidth too. In this post, we explain how to configure Squid and SquidGuard in pfSense to bloack all ads across all your devices.
By Marc Dahan in VPN & Privacy on August 23, 2023
pfSense CE is an open-source router/firewall, based on FreeBSD. In this post we explain how to configure two-factor authentication for GUI access in pfSense. 
By Marc Dahan in VPN & Privacy on August 18, 2023
Despite its use of end-to-end encryption, your location information could be up for grabs when using Signal. This post looks at how the attack works and gives some tips on how to protect against it.
By Marc Dahan in VPN & Privacy on August 17, 2023
Researchers have found a way to deduce your location from WhatsApp delivery notifications, despite its use of end-to-end encryption. This post looks at how the attack works and what you can do about it.
By Marc Dahan in VPN & Privacy on August 17, 2023
Looking to setup a an always-on VPN connection to a commercial VPN provider in OPNsense? This post will guide you through all the steps using WireGuard in OPNsense. 
By Marc Dahan in VPN & Privacy on August 15, 2023
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