pxe server ubuntu18.04

PXE (Preboot Execution Environment) is a network booting protocol that allows a computer to boot from a network interface instead of a local hard drive. To set up a PXE server on Ubuntu 18.04, you can follow these steps:

1. Ensure that your Ubuntu 18.04 system is connected to a network.
2. Install the necessary packages by running the following command:

   sudo apt-get install tftpd-hpa syslinux pxelinux

3. Configure the TFTP server by editing the `/etc/default/tftpd-hpa` file. Set the `TFTP_OPTIONS` variable as follows:

   TFTP_OPTIONS="--secure --create"

4. Create a directory to store the PXE configuration files:

   sudo mkdir /var/lib/tftpboot/pxelinux.cfg

5. Copy the PXE boot configuration file template to the new directory:

   sudo cp /usr/lib/PXELINUX/pxelinux.0 /var/lib/tftpboot/
   sudo cp /usr/lib/syslinux/modules/bios/* /var/lib/tftpboot/
   sudo ln -s /var/lib/tftpboot/pxelinux.0 /var/lib/tftpboot/lpxelinux.0

6. Edit the `/var/lib/tftpboot/pxelinux.cfg/default` file and configure it as needed. This file specifies the boot menu options for PXE clients.
7. Place the necessary boot files in the appropriate directories. For example, you can download the Ubuntu 18.04 netboot images and extract them into the `/var/lib/tftpboot/ubuntu-installer/amd64` directory.
8. Restart the TFTP service to apply the changes:

   sudo service tftpd-hpa restart

9. Ensure that firewall rules allow TFTP traffic if you have a firewall enabled.

After performing these steps, your PXE server should be set up on Ubuntu 18.04. PXE clients on the network can now boot from this server to install or boot operating systems remotely. Please note that this is a high-level overview, and you might need to refer to more detailed documentation or adjust the steps based on your specific requirements.