[syslinux] pxelinux magic options 208
Geert Stappers
stappers at stappers.nl
Mon Nov 8 10:42:08 PST 2010
Op 20101108 om 11:48 schreef Daniel Feenberg:
> On Mon, 8 Nov 2010, Miller, Shao wrote:
>
>> Could you be interested in attaching your ISC DHCP daemon config-file,
>> possibly obfuscating any sensitive material/secrets, as necessary (MAC
>> addresses, passwords)?
>
> Well, here is the global section, plus the group for "bsddefault". The
> rest isn't secret, but would probably be a distraction. I'd really like
> to
> get pxelinux.configfile working and any help would be much appreciated. I
> also tried without the request list and many other possibilities.
>
> Daniel Feenberg
> NBER
>
> =======================
>
> authoritative;
>
> option space pxelinux;
> option pxelinux.configfile code 209 = text;
>
> option ntp-servers 66.251.72.7, 66.251.72.1;
> ddns-domainname "nber.org";
> ddns-update-style none;
> ddns-updates off;
> default-lease-time 18000;
> max-lease-time 18000;
> option domain-name-servers 66.251.72.133, 66.251.72.22, 66.251.72.134,
> 64.80.233.226;
> option domain-name "nber.org";
> allow bootp;
> allow booting;
>
> ...(many lines of linux servers omitted)...
>
> group {
> next-server 66.251.72.1;
> filename "pxelinux384.0";
> option root-path "66.251.72.44:/vol/vol1c/FreeBSD-8.1-root";
>
> option pxelinux.configfile "bsddefault";
> if exists dhcp-parameter-request-list {
> option dhcp-parameter-request-list =
> concat(option dhcp-parameter-request-list,d0,d1,d2,d3);
Those two lines would I put on single line
option dhcp-parameter-request-list = concat(option dhcp-parameter-request-list,d0,d1,d2,d3);
> }
> host client2 {fixed-address 66.251.73.20;hardware ethernet 0:13:20:4c:7d:08;}}
That last curly bracket would I place on a next line
( and might add a semi-colon )
But my suggestions are mostly likely only cosmetic.
I would network sniff the network to find out who is sending what.
Groeten
Geert Stappers
Looking forward to a PCAP file
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