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Layer 2 VPN from Mikrotik to linux – Proxmox PVE

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Mikrotik version 7 brings many new features, including wireguard vpn. Wireguard vpn is fine, but it is layer 3 VPN – can not be bridged. What if you need L2 VPN, for example to migrate local server to datacenter and from network view keep it in your local network?

In my setup I wanted to be able migrate VMs from local Proxmox PVE to PVE running  in Hetzner in datacenter. PVE in datacenter was dedicated server.

Mikrotik 7.1 also support l2tpv3, which is not very well documented in Mikrotik wiki yet, but it enables Layer 2 VPN. L2tpv3 is also supported in linux. How to create bridge between them?

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Do not use consumer SSD with ZFS (for virtualization)

I have been successfully using consumer SSD in my ESXi for few years. After migration to Proxmox, I have tried to use ZFS for virtual machines. First few weeks I was very happy about it. Then I noticed very fast increasing SSD wearout levels on my new SSDs. Proxmox support forums and reddit are full of users mentioning proxmox is destroying SSD, but I thought this is just rumor. Where is the true?

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Using desktop SSD in server

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Five years ago before Christmas I bought my first SSD – Crucial MX300 750GB. I have put it into my linux server running some web hosting (running this blog for example), my emails. Second MX300 was put into Linux MD Raid1. Disk were running two years in this setup, then I have migrated into virtualized setup, running ESXi, booted from USB drive. SSD were re-used and running as hw Raid 1 using LSI-9211 card.

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Deploy OVF using OVFTool

VMware OVF Tool is a command-line utility that can import and export Open Virtualization Format (OVF) packages to and from many VMware products.

This tool can be used to deploy OVF/OVA packages instead of vSphere GUI, where OVF deploy sometimes just don’t work and is pain to troubleshoot, since it is web browser based. I was missing in OVF documentation example how to deploy virtual machine to specific folder and resource pool. This is important, when you have rights assigned just to specific resource pool and vmFolder.

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