[Dnsmasq-discuss] mDNS forwarding in dnsmasq (not avahi, but nss-mdns sort of thing)
Hello. Is it possible to remove reply's IP address check for 224.0.0.251 in dnsmasq? Maybe, check if the reply is from given subnets instead. Doing so should allow to proxy mDNS replies, eliminating need for nss-mdns in some scenarios by just using something like -S /mydomain.local/224.0.0.251#5353 Thanks! Regards, - Dmitry. ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] Distributed lease database on a mesh, using batman-adv alfred
On 11/02/2013 09:47 PM, Weedy wrote: On 2 Nov 2013 16:31, "Gui Iribarren" mailto:g...@altermundi.net>> wrote: > Problem is, there's no way to update dnsmasq internal database from outside (i.e. when alfred gets new info from another node); SIGHUP will not make dnsmasq call dhcp-script "init", only a full restart will do, and we'd rather not kill and respawn dnsmasq whenever a new lease is given in any part of the cloud :P > > Simon, any chance of having dnsmasq call "init" on dhcp-script (or lua-hook, if it's simpler) when getting a SIGHUP (or another, dedicated signal, for that matter)? Simon mentioned before why dnsmasq can't "reload" it's config because it drops privileges. But I can't see a reason why we can't reread /etc/ethers and the client cache (for me that's in /tmp/). I would welcome a "state update" signal of some sort. actually it already *does* re-read /etc/ethers # logread -f & # killall -HUP dnsmasq Sat Nov 2 22:12:15 2013 daemon.info dnsmasq[1056]: read /etc/hosts - 1 addresses Sat Nov 2 22:12:15 2013 daemon.info dnsmasq-dhcp[1056]: read /etc/ethers - 0 addresses what's missing is calling "dhcp-script init" to re-initialise internal view of the lease database ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] Distributed lease database on a mesh, using batman-adv alfred
On 2 Nov 2013 16:31, "Gui Iribarren" wrote: > Problem is, there's no way to update dnsmasq internal database from outside (i.e. when alfred gets new info from another node); SIGHUP will not make dnsmasq call dhcp-script "init", only a full restart will do, and we'd rather not kill and respawn dnsmasq whenever a new lease is given in any part of the cloud :P > > Simon, any chance of having dnsmasq call "init" on dhcp-script (or lua-hook, if it's simpler) when getting a SIGHUP (or another, dedicated signal, for that matter)? Simon mentioned before why dnsmasq can't "reload" it's config because it drops privileges. But I can't see a reason why we can't reread /etc/ethers and the client cache (for me that's in /tmp/). I would welcome a "state update" signal of some sort. ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
[Dnsmasq-discuss] Distributed lease database on a mesh, using batman-adv alfred
Hello once again Simon, we are giving one more iteration to this Libre-Mesh[0] idea, this weekend at a HackMeeting[1] near Bilbao i already described a bit of the "interesting" setup generated by the firmware in my last email. To make the mesh as distributed / resilient as possible, there's a dnsmasq instance running on each node, with identical configuration (i.e. everyone serves the same range to its clients, since they are all part of a batadv link-local that enables them to roam around) This scheme needs some kind of "lease propagation" between all instances: not only to avoid collisions in a robust way, but also to have cloud-wide hostname resolution (i.e. any dnsmasq will know hostname->ip of every client, independent of which dnsmasq gave the lease to the client) Gioacchino did a small script[2] to be used as a --dhcp-script, that talks to alfred[3] (a batadv-related daemon that propagates arbitrary data over a link-local) and correctly populates dnsmasq lease database on startup (since leasefile-ro makes dnsmasq call the script with "init" arg) it also accepts "add" actions and such, and instantly propagates leases to the rest of the nodes. Problem is, there's no way to update dnsmasq internal database from outside (i.e. when alfred gets new info from another node); SIGHUP will not make dnsmasq call dhcp-script "init", only a full restart will do, and we'd rather not kill and respawn dnsmasq whenever a new lease is given in any part of the cloud :P Simon, any chance of having dnsmasq call "init" on dhcp-script (or lua-hook, if it's simpler) when getting a SIGHUP (or another, dedicated signal, for that matter)? I hope my description of why that'd be highly desirable was understandable :) Hope you're having a nice weekend! Gui [0]: http://dev.libre-mesh.org/ [1]: http://sindominio.net/hackmeeting/wiki/2013/Nodos/Libre-mesh:_metafirmware_OpenWrt_para_cualquier_comunidad_WiFi_del_mundo [2]: https://github.com/libre-mesh/lime-packages/blob/master/packages/lime-dnsmasq-lease-share/src/dnsmasq-lease-share.lua [3]: http://www.open-mesh.org/projects/alfred ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
[Dnsmasq-discuss] DHCPv6 Prefix delegation
Hello, 1.) i am experimenting with DHCPv6 and possibilities of implementing preffix delegation... And i've found that i am not even able to get rudimentary DHCPv6 running, i am trying to assign adress (and possibly dhcpv6 options) to specified DUID using following config: port=0 log-dhcp log-facility=/tmp/dnsmasq dhcp-authoritative #dhcp-host=id:00:03:00:01:00:0c:42:8d:3b:07,set:lolo,[2001:67c:2190:1a01::1/64],harvie,300 dhcp-host=id:00:03:00:01:00:0c:42:8d:3b:07,set:lolo,[2001:67c:2190:1a01::1],harvie,300 However it doesn't seem to work at all when i launch dnsmasq -d -C /etc/dnsmasq.conf... Client still can't find any DHCPv6 server (while ISC-DHCP server works well with -6 option) Do you have any experiences with DHCPv6? Documentation is bit lousy on this topic and i can't even google up any config examples or mentions of successful applications of dnsmasq fo DHCPv6 server... 2.) Also i have wrote following string to compile custom DHCPv6 option payload according to RFC: https://github.com/Harvie/Programs/blob/master/bash/dhcp-option.sh And included the result like this: dhcp-option-force=tag:lolo,25,00:00:00:00:00:00:01:2C:00:00:01:2C:1A:62:00:00:01:2c:00:00:01:2c:34:30:20:01:06:7c:21:90:1a:01:00:00:00:00:00:00:00:00 Is it possible to specify DHCP option with custom option id and in this hexadecimal format? THX Best regards Harvie ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
