This article explains a method of whitelisting one or more devices on your internal network so that pfBlockerNG doesn’t block those devices/servers due to any configured restrictions. For example, you might block a country using pfBlockerNG’s GeoIP filtering, but you may need one of your internal devices to be able
Read moreThis 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
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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 moreThis article explains how to remove a weak Cipher Suite on a Windows Server 2019 system. There’s other ways such as Power Shell. This is just one way. Make a backup or snapshot first as mistakes could cause issues reconnecting. I organise a maintenance window, take a VM snapshot first,
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Read moreThis article explains the structure of a cipher suite. A cipher suite is a description of a combination of cryptographic algorithms that a system supports, expects or proposes. The description includes a means to create and exchange asymmetric keys, the type of symmetric keys to use, and the hashing algorithm
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This article demonstrates the settings required on Windows and pfSense to get a Windows Built-In VPN to work between the two. It’s actually pretty easy. This article is more a confirmation of settings than a guide. Make sure you have the firewall rules configured on the pfSense WAN interface. We’re
Read moreThis article demonstrates how to extent a LUKS encrypted volume. We’re using Ubuntu 22.04 and the volume is non-root. Although you could probably do the same on the root volume (partition). This is risky and you should not do this without a backup and understanding the likelihood of failure. This
Read moreThere are times when you want to clear out the Bash history and make a clean start. Or perhaps you want to remove a single or select item/s from the Bash history. Both of these scenarios are accomplished as described below – although we’ll focus on clearing out the entire
Read moreThis article explains how to mount a Luks volume (encrypted) on boot. You’ll be asked for a password. There’s plenty of articles explaining how to do this with a crypt-key available, so I need not repeat their work. Here’s our scenario. Remember, this process is destructive. Follow this only in
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