Netgate pfSense HowTo Video Series

Watch our video tutorial series on setting up your pfSense firewall appliance. We cover VLANs, DHCP, Captive Portals, OpenVPN, IDS/IPS, ...
Read More

Basic FreeRadius Setup

This article demonstrates how to install and configured FreeRadius for basic authentication. By "basic authentication", I mean we're going to ...
Read More

Recovering from “sql_exec_internal: sqlite3_step failed: database disk image is malformed” with OpenVAS

If you get the error message "sql_exec_internal: sqlite3_step failed: database disk image is malformed" preventing you from starting or logging ...
Read More

Restoring pfSense From a USB Backup Using The Console

The article I've linked to below wasn't written by me but is something worth noting for when things go wrong ...
Read More

Why I Use pfSense Over Other Firewall Appliances

I'm not married to the idea of using any product over another. It's not the branding, how nice it looks ...
Read More

pfSense as a Transparent Proxy (http & https TLS)

Getting a transparent proxy up and running can be troublesome especially getting it to terminate the HTTPS (TLS) connection, inspect ...
Read More

Google Home – My First Week With Google’s Home Automation

Week 1. I will update this in week 2 when i've spent more time troubleshooting little issues and added a ...
Read More

Install and Enable Mod_Security for Apache

This article is a short walk-through demonstrating the process of installing and configuring mod_security on Apache. In this tutorial, we'll ...
Read More

Custom Policy to Allow AWS EC2 Snapshots

This article shows the Jason for a custom IAM policy to allow snapshots with the minimum required access. I bet ...
Read More

Firewalld Zone Order/Priority And How To Restrict all but one address

This article shows how firewalld priorities rules and zones. The priority of zones is in alphabetical order. So the "block" ...
Read More

Custom IAM Policy For EC2 Snapshots

There are two issues with creating EC2 snapshots on a schedule. First the AWS recommended way doesn't allow for custom ...
Read More

IPSec/L2TP VPN on AWS EC2 | Security Group Settings

This article notes the AWS EC2 Security Group that should be associated with an EC2 to permit a roaming VPN ...
Read More

Hardening SSH Server on CentOS or RHEL 6 & 7

This article is a quick note on how to improve OpenSSH server security on Redhat Enterprise Linux and CentOS 6 ...
Read More

Red Hat Enterprise Linux 8 on VirtualBox

This article focuses on installing and running RHEL8 (Red Hat Enterprise Linux 8) on VirtualBo. Specifically, this article demonstrates how ...
Read More

Minimal Transparent Squid Proxy with SSL Interception/Bumping on CentOS 7

This article is the minimal configuration for a Squid transparent proxy with SSL Interception (or bump). We're using CentoOS 7 ...
Read More

Zabbix Dealing with Cannot create semaphore set No space left on device

If you get this strange error when trying to start the Zabbix agent on a CentOS 7 or similar system, ...
Read More

Install FreeIPA on CentOS 7 For LDAP and Kerberos Services

If you need a quick LDAP and Kerberos system up and running to provide authentication and user information, FreeIPA is ...
Read More

How to Configure AutoFS on RHEL/CentOS 7 | RHCSA

This article shows how to configure a Redhat/CentOS 7 workstation to access a remote storage system using both NFS and ...
Read More