This article shows an example configuration that will achieve three objectives: Provide GeoIP Fending, Provide SSL/TLS Termination, and server as a Reverse Proxy. In this example we’re using Ubuntu 22.04. Connections coming in on HTTP (port 80) are redirected to HTTPS (port 443) which is where the GeoIP Fencing takes
Read moreCategory: Cybersecurity
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.
Android VPN (Always On) with pfSense
This article shows the settings on the pfSense and Android device for the always on IPSec VPN. The best article to start with is “https://docs.netgate.com/pfsense/en/latest/recipes/ipsec-mobile-ikev2-client-android.html”. Then compare your settings to those on this page if you need more help than the linked article provides. The VPN cryptographic settings are: Phase
Read moreInstalling Graylog Open on Ubuntu 22.04
This article is a walkthrough for installing “Graylog Open 6” and leverages the documentation at “https://go2docs.graylog.org/current/downloading_and_installing_graylog/ubuntu_installation.html” and “https://www.mongodb.com/docs/manual/tutorial/install-mongodb-on-ubuntu/”. We’re using Ubuntu 22.04 because 24.04 is not supported using the documentation linked above. We’re starting from a fresh “standard” Ubuntu 22.04 installation. Our resources are “4GB RAM, 8 CPU Cores, 25GB
Read moreTop Tips To Avoid Being Scammed (Business Focused)
This list is relevant to businesses, but the same principles apply to our personal lives. The objective is to not be scammed, obviously. But to do that, we need to identify when we’re the target. This list will help, and is most effective when the key players within your business
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pfBlockerNG and Whitelisting Internal Source Addresses – pfSense
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 moreCyber Insurance Vs General Business Liability Insurance
This content was generated with the assistance of AI. The information has not been validated. AGIX is not an insurance company. Do not use this information to make your insurance decisions. Here is a comparison table highlighting the coverage categories of General Business Liability Insurance versus Cyber Insurance, including categories
Read morepfSense 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
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Advert Blocking Comparison Between pfBlockerNG & AdBlocker
This article is a quick comparison of advert blocking for web browsing between pfBlockerNG DNS filtering, and the web browser plugin Ad Blocker. This is hardly scientific, but it does give an idea of how effective each are with basic settings. I’m sure with more effort, the impact could be
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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 moreDisable Weak Cipher Suites on Windows Server 2019
This 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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