Browse our Cybersecurity technical articles here. We’re sharing our knowledge with fellow cybersecurity practitioners in the hope that we can all progress further and faster in protecting our information systems.

All HowTo's Cybersecurity pfSense & Netgate

pfSense Cannot allocate memory with pfBlockerNG – Firewall Rules Not Working

This article discusses the cause and solution to the error message “Cannot allocate memory” relating to pfBlockerBG. In this scenario, we’re using a Netgate 2100 Base firewall appliance. The firewall was receiving the following error message when reloading the filter rules (in “Status – Filter Reload“). There were error(s) loading

Read more
Cybersecurity Windows

Disable Weak TLS Versions on Windows Server 2019

This article explains how to manually disable weak TLS versions on Windows systems. Make sure you have a backup or recovery option as we’re making changes to the Windows Registry. Open the Registry and head to: Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols Right click on “Protocols” in the left column, and select “New” -> “Key”.

Read more