Re: [Dnsmasq-discuss] LAN taken down by Ubuntu upgrade - can't see problem
adam@cyberspaceroad.com on 6/29/2013 5:45 PM, wrote: I upgraded the OS on my gateway machine which runs dnsmasq serving dhcp and dns to the lan, and now the machines on my lan can't get an ip address. With ubuntu, I run dnsmasq in a stand-alone mode, in contrast to the ubuntu 'way' where the default installation installs dnsmasq and sets it up for optimal desktop networking - which doesn't work well for a gateway machine. My lan is on eth1, my modem is on eth0. Eth1 is assigned 192.168.0.3 by /etc/network/interfaces, and this is what dnsmasq is configured to run on. I hope you can give me a hint where to look next because as far as I am aware, the only thing that changed was the ubuntu upgrade and I'm not getting any help from the forum there, and my investigations with my limited experience has run into the sand.[SNIP] OK problem solved, it was just my network hub that had on the blink and as it was buried under a mound of cables, I hadn't seen the blinking red light - strange co-incidence that it happened exactly as I did the ubuntu upgrade. Anyway, a question that arises from my investigations: I installed dhcping and running this command on the server with dnsmasq on 192.168.0.3 produces the response no answer - surely I probe the DHCP service from the same machine like that? ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] segfault when setting pxe-server to empty value in dnsmasq 2.66
On 27/06/13 03:56, Patrick McLean wrote: Hi, running dnsmasq 2.66 we had a config that set pxe-server to a blank value, and that was causing dnsmasq to segfault every time it recieved a dhcp request. I have attached a backtrace (generated when compiled with gcc 4.8's -fsanitize=address), I manually printed some relevant variables as well. Many thanks for the comprehensive bug report. Would it be possible to send me the configuration file you were using? (off-list, if you prefer). Just to make sure I've understood exactly the circumstances that cause this, so I can fix it properly. Cheers, Simon. ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] Netbooting OS X and PXE with the same conf
On 27/06/13 11:13, Alex Silva wrote: Hello Simon, On Wed, Jun 26, 2013 at 10:14 PM, Simon Kelley si...@thekelleys.org.uk mailto:si...@thekelleys.org.uk wrote: I'm not sure there is: the proxy function (ie get boot parameters from one DHCP/PXE server, IP address from another DHCP server) is PXE specific, I think. Unless the Apple boot protocol implements the same thing somehow, what you want is not possible. Thanks for the reply. Yes, I want the exact same thing that happens with PXE: To send back an IP address of 0.0.0.0 and the netboot DHCP options. The other DHCP server in the network will return the correct IP address. I just can't find a way to make this work with dnsmasq. I'm pretty sure there is not way to make dnsmasq do that. The way PXE proxy works gives that effect, but not via the mechanism of returning 0.0.0.0 to the DHCP request. Cheers, Simon. ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] dhcp proxy to Netboot Macs
On 27/06/13 11:36, Darcey Steinsberger wrote: Hello. Is it possible to use the dhcp proxy option for netbooting Macs? Not as far as we know. There's another thread current on the mailing list which is discussing this. Cheers, Simon. ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] LAN taken down by Ubuntu upgrade - can't see problem
On 30/06/13 16:55, Adam Hardy wrote: adam@cyberspaceroad.com on 6/29/2013 5:45 PM, wrote: I upgraded the OS on my gateway machine which runs dnsmasq serving dhcp and dns to the lan, and now the machines on my lan can't get an ip address. With ubuntu, I run dnsmasq in a stand-alone mode, in contrast to the ubuntu 'way' where the default installation installs dnsmasq and sets it up for optimal desktop networking - which doesn't work well for a gateway machine. My lan is on eth1, my modem is on eth0. Eth1 is assigned 192.168.0.3 by /etc/network/interfaces, and this is what dnsmasq is configured to run on. I hope you can give me a hint where to look next because as far as I am aware, the only thing that changed was the ubuntu upgrade and I'm not getting any help from the forum there, and my investigations with my limited experience has run into the sand.[SNIP] OK problem solved, it was just my network hub that had on the blink and as it was buried under a mound of cables, I hadn't seen the blinking red light - strange co-incidence that it happened exactly as I did the ubuntu upgrade. Anyway, a question that arises from my investigations: I installed dhcping and running this command on the server with dnsmasq on 192.168.0.3 produces the response no answer - surely I probe the DHCP service from the same machine like that? It's possible that the kernel or routing the dhcping request via the lo local interface, rather than via eth1, which is where dnsmasq is expecting to receive it. Cheers, Simon. ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
