Linux - Setting up linuxserver/netbootxyz Docker Image and dnsmasq DHCP in Proxy Mode When Your Main Router Has Locked DHCP Settings

Linux - Setting up linuxserver/netbootxyz Docker Image and dnsmasq DHCP in Proxy Mode When Your Main Router Has Locked DHCP Settings

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Prerequisites

  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.