java 4Stack=true -Xmx512m on Pi Zero W: STILL TESTING!! java 4Stack=true -Xmx384m java 4Stack=true -Xmx1536m on Pi3 / Pi4 1GB: you can also set this to 512 or just leave as is, it is stable as is. java 4Stack=true -Xmx2048m on Pi3 / Pi4 2GB: you can also set this to 1024 or 1536, or just leave as is. Notes: Change the java memory limit to match your requirements: default is: -Xmx768m example: nano -w /nxfilter/bin/startup.sh now find and edit, there should be two instances, edit both: java 4Stack=true -Xmx768m to: on Pi4 4GB: you can also set this to 1024, 1536, 3072 or just leave as i s. Now wait up-to 5 minutes for the engine to start… (on Pi Zero W…wait a bit longer for first start) then browse to: (self signed certificate) login default: admin/admin sudo systemctl enable nxfilter sudo systemctl start nxfilter Sudo apt-get install openjdk-8-jre cd /tmp wget sudo dpkg -i nxfilter-4.3.4.8.deb #set your memory here as per the Notes section first…then continue. Sudo apt-get update & sudo apt-get upgrade sudo reboot

Raspbian Lite installed using NOOBS 3.2 lite, after initial setup, run ‘raspi-config’, and set, boot from CLI no auto login, enable SSH, set Memory Split to 16 (this is the amount of memory you are assigning to the GPU, 16mb is the lowest limit), and set static IP, reboot. NxFilter is a free Content filter and DNS server, that allows you to control and monitor access to DNS and restrict access to various types content by catagories.

Nxfilter