DIY Sysadmin

Enterprise. At home.

Blog

This is the meat and potatoes of this website. This is where I go over the my homelab projects. It is also a great way for me to document my steps if I ever need to recreate my setup. As with anything open source no guarantees or warrantees, explicit, or otherwise. Use it at your own risk.

SSH. Part Duo.

Securing Linux SSH with Duo two-factor authentication. A few days ago, I was chatting with someone about authentication. They mentioned […]

IPsec between Sophos and pfSense.

One of the vendors that I’ve seen in small and medium businesses was Sophos. So, we can conclude that Sophos […]

Meraki Dashboard APIs, Part 2.

Using Meraki Dashboard APIs for Local DNS Problem The goal in IPsec between Meraki and pfSense was to enable access […]

Meraki Dashboard APIs.

Expanding Meraki capabilities with the help of APIs. Some of you noticed a banner on top of the Appliance Status […]

DHCP Option 121. Friend or Foe?

Back in May 2024, there were reports of a VPN “vulnerability” named “TunnelVision”. The “vulnerability” uses DHCP Option 121, RFC […]

IPsec between Meraki and pfSense.

Over the weekend, I visited my other location and set a Meraki Z4 up. This also allowed me an opportunity […]

Firewalls and DDNS, Part 2.

As discussed in the Firewalls and DDNS post, DuckDNS can sometime be slow. Additionally, some corporate DNS resolves do not […]

The Magic of Meraki.

Recently, I was fortunate to spend a few months working for Cisco, doing tech support for their Meraki products. As […]

SSH.

Securing Linux SSH with cryptographic keys. Since our Debian server is headless, we probably access it through SSH, which stands […]

Firewalls and DDNS.

In the SSH post, I showed a command to open up access to your Debian based SSH server through ufw. […]

The Set-Up.

This is a set up. Rush. Adrenaline. In this post I explain what I like to do in post-install setup of […]