apt install tftpd-hpa

#change TFTP_ADDRESS to by setting address to 192.168.1.1:69 or the IP you need, otherwise it will listen on all IPs and interfaces which could be a security risk.

# edit /etc/default/tftpd-hpa

TFTP_USERNAME="tftp"
TFTP_DIRECTORY="/srv/tftp"
TFTP_ADDRESS="192.168.1.1:69"
TFTP_OPTIONS="--secure"

systemctl restart tftpd-hpa

#now edit our isc dhcp server /etc/dhcp/dhcpd.conf

#under the subnet declaration:

subnet 192.168.1.0 netmask 255.255.255.0 {
  range 192.168.1.2 192.168.1.200;
  #deny unknown-clients;
  option routers 192.168.1.1;
  option domain-name-servers 192.168.1.1;
  next-server 192.168.1.1;
  filename "pxelinux.0";
}

#how to exclude hosts from receiving a DHCP
# add this in the subnet declaration
  host whatevernameyouwant {
   hardware ethernet 00:10:28:e2:49:2e;
   ignore booting;
  }
#comment out the ignore booting and restart dhcpd if you want to re-enable it
 

###
apt install syslinux pxelinux
#for MBR copy this

cp /usr/lib/PXELINUX/pxelinux.0 /srv/tftp/
cp /usr/lib/syslinux/modules/bios/ldlinux.c32 /srv/tftp/
cp /usr/lib/syslinux//modules/bios/menu.c32 /srv/tftp/
cp /usr/lib/syslinux//modules/bios/memdisk /srv/tftp/
cp /usr/lib/syslinux//modules/bios/mboot.c32 /srv/tftp/
cp /usr/lib/syslinux//modules/bios/chain.c32 /srv/tftp/
cp /usr/lib/syslinux//modules/bios/libutil.c32 /srv/tftp/

mkdir /srv/tftp/images
mkdir /srv/tftp/pxelinux.cfg

vi /srv/tftp/pxelinux.cfg/default

default menu.c32
prompt 5
timeout 300

MENU TITLE Menu
LABEL rtt-Diagnostic
MENU rtt-Diagnostic
kernel ../images/kernelfs

service isc-dhcp-server restart
 

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