90: Proxmox ClusterF

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Feb 10, 2023

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ANECDOTE

Network Troubles

Alex's OpenSense box, Proxmox cluster, and unmanaged network caused internet outages.
Switching a network cable from port one to port two temporarily resolved the issue.

ADVICE

Automate Network Management

Automate network device additions using Ansible and DNSMasq for DNS and DHCP.
This simplifies management compared to manually clicking through OpenSense's web UI.

INSIGHT

Pi-hole vs. AdGuard Home

Pi-hole, based on DNSMasq, offers similar functionality to AdGuard Home, with DNS and DHCP capabilities.
Switching between them is largely transparent from a user perspective.

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Alex has major Proxmox problems. What happened, and the fix for now. Plus, the real downside to Wifi cameras and the batch of network gear on the way.

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blog.ktz.me - Fully automated DNS and DHCP with Ansible, Dnsmasq and Pihole — For the longest time I've made do with clicking through the Opnsense UI to add static IP reservations via MAC address mapping. It's been one of those minor friction points of network administration that I've put up with because automating the process seemed daunting. This post will detail how I solved a few interesting problems as I fully automated DNS overrides and DHCP reservations using Pihole, and the program it's built on top of Dnsmasq.
Cluster Manager - Proxmox VE — The Proxmox VE cluster manager pvecm is a tool to create a group of physical servers. Such a group is called a cluster. We use the Corosync Cluster Engine for reliable group communication. There’s no explicit limit for the number of nodes in a cluster. In practice, the actual possible node count may be limited by the host and network performance. Currently (2021), there are reports of clusters (using high-end enterprise hardware) with over 50 nodes in production.
Pi-hole — You can run Pi-hole in a container, or deploy it directly to a supported operating system
Ubiquiti WiFi
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