Watch our video tutorial series on setting up your pfSense firewall appliance. We cover VLANs, DHCP, Captive Portals, OpenVPN, IDS/IPS, Transparent Proxy and backups. Watch the introduction video that provides some context to the following series of mini projects. Learn how to create and manage VLAN. We work through
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This article demonstrates how to install and configured FreeRadius for basic authentication. By “basic authentication”, I mean we’re going to configure local users in clear text. This is the simplest way to configure FreeRadius. We’re installing this on CentOS 8. Install the software: yum install freeradius freeradius-utils Add the client
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If you get the error message “sql_exec_internal: sqlite3_step failed: database disk image is malformed” preventing you from starting or logging into OpenVAS, this article should help. The issue may have been caused by an unexpected power-down, but whatever caused it, the DB is corrupt. Not that this is the same
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Getting a transparent proxy up and running can be troublesome especially getting it to terminate the HTTPS (TLS) connection, inspect it (if need be) and re-terminate it. Most businesses these days don’t want to actually inspect the traffic but can’t go without some-kind of internet monitoring so a minimalistic transparent
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This article is a short walk-through demonstrating the process of installing and configuring mod_security on Apache. In this tutorial, we’ll be using CentOS 7. We’re starting with a pre-configured and running web server running httpd listening on port 80 and 443. There’s no other services such as Varnishor Nginx running.
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This article shows the Jason for a custom IAM policy to allow snapshots with the minimum required access. I bet it can be improved upon but this is pretty close. { “Version”: “2012-10-17”, “Statement”: [ { “Effect”: “Allow”, “Action”: [ “ec2:CreateSnapshot”, “ec2:DeleteSnapshot”, “ec2:Describe*”, “ec2:CreateTags” ], “Resource”: “*” } ] }
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This article shows how firewalld priorities rules and zones. The priority of zones is in alphabetical order. So the “block” zone is checked before the “dmz” done. And within a zone, the rules are applied in the order they were added. As we know, rules are in the order they
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There are two issues with creating EC2 snapshots on a schedule. First the AWS recommended way doesn’t allow for custom names for snapshots which we use for identifying the source or schedule. Second the AWS IAM doesn’t have a built-in policy that allows it. So this article provides an example
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This article notes the AWS EC2 Security Group that should be associated with an EC2 to permit a roaming VPN client to connect to an IPSec/L2TP hosted on a server within AWS. * TIP: The AH and ESP are entered in as just numbers, not the “AH” and “ESP”.
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This article is a quick note on how to improve OpenSSH server security on Redhat Enterprise Linux and CentOS 6 and 7. This is not about Passwords-v-Keys (use keys, not passwords) but rather hashes, encryption and key exchanges. The “/etc/ssh/sshd_config” file should have the following added to it to ensure
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