I pulled out my few-years-old NUC, and it went on to HDD boot when it couldnt
get a valid filename from the TFTP.. im not using DNSMASQ. but i put the MAC
address of it in my dhcpd.conf with a option 66 that went nowhere..bogus
filename so it failed to get a boot file and just went on to boot from its
drive....
-Christopher
From: Lonnie Abelbeck <li...@lonnie.abelbeck.com>
To: AstLinux Users Mailing List <astlinux-users@lists.sourceforge.net>
Sent: Wednesday, June 14, 2017 10:12 AM
Subject: Re: [Astlinux-users] Dnsmasq, TFTP Option 66 and PXE Boot
Michael,
First, I have never heard of an issue like this.
The DHCP option 66 is sent regardless if the TFTP server is enabled or not, as
it can be used for HTTP and HTTPS services as well.
Can't you disable PXE booting in the BIOS of your Intel NUC’s ? It would seem
to me that is where the problem is.
Lonnie
On Jun 14, 2017, at 12:27 AM, Michael Knill <michael.kn...@ipcsolutions.com.au>
wrote:
> So is my only option here to maintain my own copy of dnsmasq.conf or is there
> a better way e.g. edit the init process to remove the TFTP options?
> Maybe a TFTP checkbox on the Network Tab against the interface or something
> similar?
>
> Regards
> Michael Knill
>
> -----Original Message-----
> From: Michael Keuter <li...@mksolutions.info>
> Reply-To: AstLinux List <astlinux-users@lists.sourceforge.net>
> Date: Thursday, 8 June 2017 at 8:55 pm
> To: AstLinux List <astlinux-users@lists.sourceforge.net>
> Subject: Re: [Astlinux-users] Dnsmasq, TFTP Option 66 and PXE Boot
>
>> Am 08.06.2017 um 10:33 schrieb Michael Knill
>> <michael.kn...@ipcsolutions.com.au>:
>>
>> Yes I thought about tags but really I would rather is not be sent at all.
>> Any other options for doing this?
>>
>> Regards
>> Michael Knill
>
> I have not tested how setting to null behaves:
>
> dhcp-option=lan,option:tftp-server,""
>
> Needs to be tested.
>
>> -----Original Message-----
>> From: Michael Keuter <li...@mksolutions.info>
>> Reply-To: AstLinux List <astlinux-users@lists.sourceforge.net>
>> Date: Thursday, 8 June 2017 at 6:20 pm
>> To: AstLinux List <astlinux-users@lists.sourceforge.net>
>> Subject: Re: [Astlinux-users] Dnsmasq, TFTP Option 66 and PXE Boot
>>
>>> Am 08.06.2017 um 09:48 schrieb Michael Knill
>>> <michael.kn...@ipcsolutions.com.au>:
>>>
>>> Hi Michael
>>> So I already have enable-tftp=eth1.100,tun0 and the data interface is eth1.
>>> I think this command is for turning ON TFTP when DHCP is turned OFF.
>>> /etc/dnsmasq.conf has the tftp-server option included so I assume that it
>>> will still be there.
>>>
>>> Is there any way I can look at the actual config?
>>> I think I might plug a machine in and really see what I am getting.
>>>
>>> Regards
>>> Michael Knill
>>
>> OK, there might be another way around this with tags.
>> E.g.:
>>
>> ----
>> dhcp-mac=set:yealink,00:15:65:*:*:*
>> dhcp-mac=set:phones,00:15:65:*:*:*
>> dhcp-option=tag:yealink,option:tftp-server,"http://192.168.102.1/phoneprov/yealink/";
>>
>> dhcp-mac=set:snom,00:04:13:*:*:*
>> dhcp-mac=set:phones,00:04:13:*:*:*
>> dhcp-option=tag:snom,option:tftp-server,"http://192.168.102.1/phoneprov/snom/";
>>
>> #dhcp-boot=tag:!phones,thinstation/pxelinux.0,pbx3,192.168.100.3
>> ----
>>
>> This way only "non-phones" would get the last "dhcp-boot" option
>> You could of course make other (more useful) tags.
>>
>> Just keep in mind "/etc/dnsmasq.conf" is automatically created and then
>> "/mnt/kd/dnsmasq.static" is included into it.
>>
>>> -----Original Message-----
>>> From: Michael Keuter <li...@mksolutions.info>
>>> Reply-To: AstLinux List <astlinux-users@lists.sourceforge.net>
>>> Date: Thursday, 8 June 2017 at 5:39 pm
>>> To: AstLinux List <astlinux-users@lists.sourceforge.net>
>>> Subject: Re: [Astlinux-users] Dnsmasq, TFTP Option 66 and PXE Boot
>>>
>>>> Am 08.06.2017 um 09:29 schrieb Michael Knill
>>>> <michael.kn...@ipcsolutions.com.au>:
>>>>
>>>> Hi group
>>>>
>>>> What is the best way to provide DHCP on an interface but turn off TFTP?
>>>> I have some Intel NUC’s on my data VLAN and I am providing DHCP and I
>>>> suspect they are having bootup issues because they are trying to do a PXE
>>>> boot from Option 66 which is being passed to them on the data VLAN!
>>>>
>>>> Can I set it to NULL e.g. dhcp-option=lan,option:tftp-server,""
>>>>
>>>> Has anyone had this issue before?
>>>>
>>>> Regards
>>>> Michael Knill
>>>
>>> Hi Michael,
>>>
>>> from our AstLinux changelog :-)
>>>
>>> -- dnsmasq, version bump to 2.68, new feature allows "enable-tftp=" to
>>> define allowed interfaces for TFTP.
>>> More Info: View file "/stat/etc/dnsmasq.static" for syntax and make changes
>>> to "/mnt/kd/dnsmasq.static".
>>>
>>> Michael
>>
>> Michael
>
>
> Michael
>
> http://www.mksolutions.info
>
>
>
>
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pay...@krisk.org.
------------------------------------------------------------------------------
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engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
Astlinux-users mailing list
Astlinux-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/astlinux-users
Donations to support AstLinux are graciously accepted via PayPal to
pay...@krisk.org.
