1. Docker is installed
2. dnsmasq is installed

Steps

1. Start Docker image from linuxserver.io

Head down to linuxserver/netbootxyz and follow the instructions to get a netboot.xyz container up and running.

2. Configuration

/etc/dnsmasq.conf

port=0
interface=eth0
bind-dynamic
log-dhcp
dhcp-authoritative
dhcp-range=192.168.1.0,proxy,255.255.255.0
pxe-service=x86PC, "NETBOOT (BIOS)", "netboot.xyz.kpxe", 192.168.1.253
pxe-service=X86-64_EFI, "NETBOOT (EFI)", "netboot.xyz.efi", 192.168.1.253

Explanations

• port=0 - (optional) disable DNS server if not in use
• interface=eth0 - (optional) only listen on interface eth0, repeat this line for more interfaces, remove for all interfaces
• log-dhcp - (optional) log DHCP requests
• bind-dynamic - (optional) binds to new interfaces added after start
• dhcp-authoritative - prioritize this DHCP server in a network
• dhcp-range - replace 192.168.1.0 and 255.255.255.0 according to your IP range and subnet, set to proxy mode to proxy your original DHCP server
• pxe-service=x86PC for BIOS systems, replace 192.168.1.253 with the IP of the machine hosting netbootxyz
• pxe-service=X86-64_EFI for UEFI systems, replace 192.168.1.253 with the IP of the machine hosting netbootxyz
• enable-tftp is not included as it already hosted by the Docker container

3. Start your services

Start your services.