...

or change DHCP servers settings to serve Pihole DNS

Tips and tricks

• Containers use up a lot of disk space, USB/SATA,NVMe attached media is highly recommended. For devices with USB ports - USB to SATA adapters can be used with 2.5" drives - for extra storage and faster file operations.
• RAM usage can be limited by using:
  

/container/config/set ram-high=200M

this will soft limit RAM usage - if a RAM usage goes over the high boundary, the processes of the cgroup are throttled and put under heavy reclaim pressure.