Pi-Hole DNS
SYN Shop runs it's own instances of Pi-Hole Pi-Hole is a local DNS resolver that blacklist domains that serve ads.
Pi-hole LXC is hosted on the Proxmox server.
Pi-Hole
To set up the Pi-Hole, do the generic install via curl -sSL https://install.pi-hole.net | bash
. On the Settings -> System page, flush logs and disable query logging. On Settings -> DNS page, set "Custom 1 (IPv4)" to 127.1.1.1
and Listen on all interfaces, permit all origins
. On Settings -> Privacy, set it to Paranoia mode
. This way no logs will be stored of any DNS lookups.