[Kea-users] PXE booting to PHP file and on commit, release, expiry

[Klaus Steden]

I don't know about updating PowerDNS, but I suspect you'll have to write a
plugin. As for the designated boot menu, you can still do that, although
the syntax is different.

This snippet below -should- do more or less what you're doing with vanilla
ISC DHCP:

-- cut --
  "client-classes": [
    {
        "name": "bootstrap",
        "test" : "option[60].exists
        "option-data": [
          {
            "name": "boot-file-name",
            "data": "ipxe/undionly.kpxe"
          }
        ]
    },
    {
        "name": "preseed",
        "test": "option[60].hex == 'd-i'",
        "option-data": [
          {
              "data" : "http://10.0.0.9/tftp/boot.php",
              "name" : "boot-file-name"
           }
        ]
     }
  ],
-- cut --

You're probably going to have to tune that a bit, but this is the approach
I'm using to manage both server and switch booting, and it works well.

hth,
Klaus

On Mon, Sep 12, 2016 at 11:57 AM, Christoffer Jönsson <bonchen at imap.cc>
wrote:

> Hello again!
>
> Since the 1.1 release i decided to try and migrate from isc-dhcp. And
> there is a few things I have questions about.
>
> For years I have been using a python script to feed my PowerDNS it's
> records using this:
>
> on commit {
>                 set ClientIP = binary-to-ascii(10, 8, ".", leased-address);
>                 set ClientMac = binary-to-ascii(16, 8, ":",
> substring(hardware, 1, 6));
>                 log(concat("Commit: IP: ", ClientIP, " Mac: ", ClientMac,
> "Hostname: ", option host-name));
>                 execute("/etc/pdns/dhcp-event", "commit", ClientIP,
> ClientMac, option host-name);
> }
>
> Is it still possible to call and external script?
>
> At the same time I've been using a php file that loads the designated boot
> menu for the booted mac-address:
>
> subnet 10.0.0.0 netmask 255.255.255.0 {
> [...]
>
> if not exists gpxe.bus-id {
>     filename "undionly.kpxe";
> } else {
>     filename "http://10.0.0.9/tftp/boot.php";
> }
> [...]
> }
>
> I'm not sure I can still use this line of code?
>
> Thanks in advance!
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