The Diary of a Proxmox Admin
A series of how to guides for proxmox
How to install elasticsearch 5.4 on an LXC Container Guide
If you ever tried to install elasticsearch in an lxc container; I'm sure you're aware of the terrible pain and suffering that comes from trying to set it up. Here's a guide that will hopefully help.
How to setup a virtual SPAN port with ProxMox using Open-vSwitch Guide
The following documentation demonstrates how to setup a SPAN port (port mirroring) on a fresh installation of proxmox. This can be used to configure a network monitoring tool like suricata or bro within your virtual proxmox environment.