Dnsmasq listen on all interfaces. Around …
This is expected behavior.
Dnsmasq listen on all interfaces. I typically configure /etc/rc.
Dnsmasq listen on all interfaces 1 " # Define specific interfaces to listen on interfaces: [] # - "{{ ansible_default_ipv4['interface'] }}" # - eth0 # - eth1 # Define any interface To complete this feature, a sub-feature was introduced - "Listening Interfaces". Thanks for noting that listening on all interfaces dnsmasq_interfaces: listen_address: " 127. BUT: dnsmasq (which is running for the lan DNS listen on all interfaces in the system. 200,24h Which works like a charm. ) listen Listen only on the specified interface(s). After updgrading to the latest version of dnsmaq I found that DHCP server doesn't work if you don't set explicitly in dnsmaq. Hi, Google got me here and I'm glad it did. OP . domain-needed bogus-priv Either put everything in /etc/dnsmasq. Dnsmasq automatically adds the loopback (local) interface to the list of interfaces to use when the --interface option is If I have dnsmasq set to to listen on all interfaces and 127. I disable network manager I have my local network configured with custom DNS setting so I can connect to all my home network machines using their domains instead of IP. conf you can use either interface names interface=eth0 or interface IP dnsmasq listen on two interfaces. Multiple accepted sockets can co-exist, all accepted from the same listening socket, all showing the same local port number as the listening socket. Listen on all interfaces, permit all origins = I’ll show you that dnsmasq does NOT listen on all interfaces if you tell it not to, but let’s test that theory first. This configuration enables query logging, instructs dnsmasq to listen on all network interfaces, and resolves example. Alternatively you could have dnsmasq return a dummy value within the dirty vlan subnet for hosts you want to protect When Dnsmasq is installed on a server using libvirt, Dnsmasq accepts queries coming from all interfaces, so an attacker can for example create a distributed denial of service. 1 if you use this. 10. e. In fact, it isn’t there as lxd init fails to complete its work. It's likely that you don't (for instance) want to offer a DNS service to the world via an interface connected to Listen only on the specified interface(s). [cite] "On Dnsmasq automatically adds the loopback (local) interface to the list of interfaces to use when the --interface option is used. are included. conf to bring up the interfaces. The range of addresses available in the pool is too small for the While answered in a comment, the full description to the option is (as quoted from the dnsmasq manual):-I, --except-interface= Do not listen on the specified interface. Even when dnsmasq is set to listen to internal interfaces only, it appears to be servicing all interfaces. Dnsmasq automatically adds the loopback (local) interface to the list of interfaces to use when the --interface option is You have to assign static IP addresses to all interfaces that are used by dnsmasq. It is accessible on the internet and works great. d i got only 01-pihole. yml file I’ve got pihole set up on a virtual server and allowed port 53 on the firewall. I have achieved the same with only the docker0 interface defined in my docker daemon. 1 dhcp-range=192. if [[ "${DNSMASQ_LISTENING}" == "all" ]]; then # Listen on all interfaces, permit all origins; add_dnsmasq_setting "except-interface" "nonexisting" elif [[ If it's just DHCP you don't want to run on wlan0 then you can use --no-dhcp-interface=wlan0. conf to use the bridge address as nameserver. One you will probably want to do is tell dnsmasq which ethernet interface it can and cannot listen on, as we really don't want it listening on the internet. – Severity: 1/4 First install dnsmasq: sudo apt-get update; sudo apt-get install dnsmasq. My client is an Android phone using the WireGuard Android app. Dnsmasq automatically adds the loopback (local) interface to the list of interfaces to use when the --interface option is used. ; We change the I had good results setting up caching bind with root nameservers on one machine and then pointing my other machines with dnsmasq there. json file, and a barebones dnsmasq configuration (no-resolv and a couple of By setting the DNS server to listen on all interfaces I'm This section of the adguard home guide mentions setting the DNS server to listen on 192. Set "Listen only on interface eth0" in admin/settings (web interface), check on system: So libvirt is running Add each interface in a new line under dhcp configuration "Exclude interfaces" and save. I have four internal VLAN's, one a guest, and of course the external ISP interface. If unspecified, dnsmasq will listen to all interfaces except those listed in notinterface. Around This is expected behavior. Both routers alone work fine, including their standard dnsmasq local and After upgrading to Ubuntu 16. 5. 0:53 (but see note below); move dnsmasq to listen on dnsmasq. I didn't realize DNSMASQ_LISTENING=local was a If this is not what you want, you can use this option as it forces FTL to really bind only the interfaces it is listening on. I am using this guide to setup multiple SSIDs on my WiFi interface. I have connected a device to eth0 port and again tried to start dnsmasq and it worked now. 1 However, I Hi. When the DNSmasq service runs, it would always listen on the interfaces specified in 01-pihole. I'll keep watching whether it -i,--interface=<interface name> Listen only on the specified interface(s). Since some Furthermore, it is possible to return a specific address for all domain names that are not answered from /etc/hosts or DHCP by using a special wildcard: address=/#/1. I wonder if there is an option that allows to add trusted subnets? By default dnsmasq wants to listen to port 53 on all interfaces, which here obviously yields a conflict. Server. inet1. conf and custom. 0. 50,192. Ensure a stable internet connection for a successful download. conf set setup-router false, discovery-dns 127. If no --interface or - The easiest solution is to use --interface flags to specify which interfaces dnsmasq should listen on. Steps to reproduce. 66) listen only to the loopback interface but it obsesses on listening to all available addresses, i. 8. 1 which makes Choosing Your Interfaces. You can create your own DNS-server and run it on -i,--interface=<interface name> Listen only on the specified interface(s). conf file To anyone else who stalls at this point run dnsmasq with the "-C" flag and point it to your parent/green copy of the dnsmasq. [12]. About the only time you may need this is when # running another By default dnsmasq offers DNS service on all the configured interfaces of a host. interface=eth0 interface=eth1 # Or which interface to listen on by address (remember to include # 127. conf (regardless of IP address Configure your dnsmasq instance to explicit list of interfaces you want it to listen on. I typically configure /etc/rc. 2. IP alias interfaces (eg "eth1:0") cannot be used you can restrict the interface that dnsmasq listens on (say for example your local network): this specifies only listen on eth0: interface=eth0 and this specifies only listen on a dnsmasq running without being binded to any interface bc I need it to work on both interfaces; DNS must work on local-network only. The dnsmasq package uses the configured Listening Interfaces to know on what interfaces it dnsmasq listens on addresses because the media server connects via usb wifi and the interface name can change. dnsmasq field but it does not change it just changing the port 53 dsnmasq processes. conf or in a single file in /etc/dnsmasq. (This can also be I am trying to configure dnsmasq on Debian to provide DNS service on a wlan0 interface by redirecting all traffic to one single IP as follows. conf in addition to those in 99-interfaces. SSH to router and check using 'netstat -tulnp' to find that dnsmasq is still listening on all The lxdbr0 interface is obviously not in use by anything else but lxd. If I switch on another network, NetworkManager will get new IP address from dhcp server, and update Libvirt dnsmasq is running on all interfaces, this is undesired. If no --interface or --listen-address options are given Dnsmasq listens on all your interfaces even if you only specify some of them. conf from pihole installation folder, I have configured DHCP on my slackware router with dnsmasq: Code: interface=eth1 listen-address=192. (Only eth0/10. This has I always forget the key details, I meant bridge network, that is: Use the Pi-hole web UI to change the DNS settings Interface listening behavior to "Listen on all interfaces, permit interface=wan0. To achieve this, its IP address, 127. address=/#/172. 101,123. conf to bring up the I want to exclude some interfaces from being used by dnsmasq but I am not sure which names to actually add to the config (since there are many names for the same dnsmasq failed to start because the eth0 has no IP. 0:53 despite the following By default dnsmasq offers DNS service on all the configured interfaces of a host. 1 FTL v5. However, the way dnsmasq works is that if no interface is specified, all interfaces are included. Dnsmasq automatically adds the loopback (local) interface to the list of interfaces to use when the --interface option is Which means that if you want the second dnsmasq to be accessible on all the interfaces where the first dnsmasq operates, you can probably employ a workaround: create an extra virtual I installed this on a router that has multiple LAN interfaces, would like both DNS and DHCP to listen to all the LAN interfaces, but not any others. I run both knot-resolver and unbound Hi. Some background. local to 192. ) According to the manpage, the following options should make it listen on If you # want dnsmasq to really bind only the interfaces it is listening on, # uncomment this option. In this example, the RPi will be assigned 192. I assume the implicit association is that interface. Multiple UDP sockets all bound to the In many cases these machines will sit between a cable modem and a home router / network so I need to be transparent between eth0 and eth1. If you read the manpage, it looks like interface=wlan0 bind-interfaces should do the For dnsmasq, you would define a file in the drop in /etc/dnsmasq. Getting basic IP I am trying to host a DNS server with dnsmasq using my Raspberry Pi. Also make sure that your first instance of dnsmasq At kernel level, it's not bound to anything. But the interfaces can Install the update package on a machine with only one green interface; dnsmasq should work as usual; Test case 2. 13 Web Interface v5. I’m not the only one that’s # Repeat the line for more than one interface. 2 and use 192. I figured I would place it in the 10. But if any interface [Solved] Questions about DNSmasq and IPv6 Link Local Adresses Loading interface=lo: Dnsmasq will listen on loopback interface. The web server lighttpd doesn't listen on any specific interface. I'm sure this is useful to some folks, but I'm perfectly OK having to be on LAN -i,--interface=<interface name> Listen only on the specified interface(s). option interface_mtu # Most distributions have NTP support. 12. Is there another way to Used DNSMASQ_LISTENING: 'eth0' and INTERFACE: 'eth0' in compose file; Saw 'Listen to all interfaces' was set; Changed to DNSMASQ_LISTENING: 'single' in compose Listen only on the specified interface(s). *). 3. You may need to define the exact interface(s) for it in the conf file, Edit the file dnsmasq. I don't know why it is ignoring your cobbler config. List of interfaces to listen on. Note that dnsmasq Note that if no --interface option is given, but --listen-address is, dnsmasq will not auto‐ matically listen on the loopback interface. Yes it was 2 different interfaces for home (192. 1, unless there's some option I enabled/didn't enable but then I need to know in advance IP address(es) of DNS server(s). 0. This is the network Thanks for your answer. If so, how can I make it so that dnsmasq only listens to the wifi "Use the Pi-hole web UI to change the DNS settings interface listening behavior to "Listen on all interfaces, permit all origins", if using Docker's default bridge network setting. However, if I just move the Listen only on the specified interface(s). If no --interface or - I think you misinterpreted TinyDNS functionality. Check your logs for information. d/rc. -z, --bind-interfaces On systems which support it, dnsmasq binds the wildcard address, even when I've tried to have dnsmasq (version 2. I know for example eth0:N interfaces are not valid, On systems which support it, dnsmasq binds the wildcard address, even when it is listening on only some interfaces. I then want to set Ola! I am trying to run a DNS service (not dnsmasq) on a separate ip. 1 is using dnsmasq. You can't have forwarder and DNS-server running on the same interface. 100,12h [SOLVED] dnsmasq listen If no --interface or --listen- address options are given dnsmasq listens on all available interfaces except any given in --except- interface options. If no --interface or - There's a few issues here. But i think that DHCP-FWD is listen on two interfaces and DNSMASQ only on one interface. Dnsmasq sees DHCP packets which arrive on all interfaces. Normally I would do this by adding: echo Vulnerability of Dnsmasq: listening on all interfaces via libvirt Synthesis of the vulnerability When Dnsmasq is installed on a server using libvirt, Dnsmasq accepts queries coming from all At the moment I think that dnsmasq is just not listening on these virtual interfaces and this also includes restarting it after Parallels has started (and the virtual interfaces are Listen only on the specified interface(s). The reason I have explicitly listed interfaces under the dnsmasq instance, is that I have multiple dnsmasq instances, which forward to different HTTPS DNS Given that the configuration files are all the same, the next step is to look for any differences in the network interfaces and routing tables: Code: ifconfig -a netstat -rn . I have WireGuard set up to enable access into my home network for WireGuard "clients". You can modify the address In my container i’m bringing up an additional interface called sl0. d and remove the interface= line to have dnsmasq listen on all interfaces. 16. 100,12h dnsmasq listen on two I have configured DHCP on my slackware router with dnsmasq: Code: interface=eth1 listen-address=192. Then from a client I ran 'dhclient -v eth1' in the hope to get an IP. Alternatively, you can specify more I only require the “listen on eth0” for my setup, but I was confused why some people had made posts claiming VPN traffic wasn’t showing up on theirs. I have yet to setup vlans on my network but this will be helpful for sure. 1. In /etc/dnsmasq. Dnsmasq automatically adds the loopback (local) interface to the list of interfaces to use when the --interface option is Listen only on the specified interface(s). Add a red interface; dnsmasq must listen only on green interface; Test Install the update package on a machine with only one green interface; dnsmasq should work as usual; Test case 2. tags shared between config entries. On the server, add this line this line to /etc/dnsmasq. Add a red interface; dnsmasq must listen only on green interface; Test To make sure the PiHole is listening to the VPN connections. conf. If you want it to be available from I want to use dnsmasq with two configs on two interfaces, which should be bound locally. 1, must What you describe in "desired function" is a network bridge, except perhaps it is unidirectional in some sense, which is essentially a router: Instead of an uplink, you have Had setup my raspi as a wireless AP but for some reason its no longer working i checked the status of hostapd and dnsmasq its been awhile since i configured it from a guide but i get this When use-dnsmasq is enabled, DHCP server will serve the “listen-on” interfaces configured under “service dns forwarding”, or all interfaces if that is not configured. When I set up OpenWRT, I noticed that dropbear and uhttpd listen on WAN by default. The problem is that when I connect through DNSMasq is listening on all interfaces. Note that this may result in issues when the interface may go down -i, --interface=<interface name> Listen only on the specified interface(s). So currently I'm Listen on all interfaces, permit all origins - Defaults to Listen on all interfaces every restart . I need to have dnsmasq listen to port 53 on that interface as well. Looking at the AdGuardHome. conf and make sure that the interfaces and listen-address are both set to include all the places you want to reach it from. *) and work (10. 1, all lookups just go through dnsmasq including the ones that are supposed to be proxied so it just gets caught in a I want to have use DNSMasq to handle dns caching and dhcp service for all 3 networks. Note that the order of - I found the answer - pretty obvious really, but hopefully someone else can learn from my silliness- the "interface" config setting tells dnsmasq which interfaces to listen on- if you have multiple Sorry but the output does not show the device where the sockets listen on. conf,and this file doesn't contain any references to the interface adapters. 4 More than one Hi, I configured 2 OpenWrt routers to connect their local wlans (192. I have some machines that only connect This may require launching multiple Unbound or Dnsmasq daemons that each use separate config files and setup to listen on their respective interfaces. You have to assign static IP addresses to all interfaces that are used by dnsmasq. At home I only have one machine so got the I was changed lxdbr0 network configs, i added listen-address to raw. Modified 4 years, 9 months ago. I did try to setup Pi-hole + Openvpn, but when I select "Listen on all interfaces, permit all origins" in the admin interface and reboot my pi all or DNS is gone on pc! My VPN Docker Tag 2022. Thank you. It then discards requests that it shouldn't reply to. The change is between the work IP and home IP. I have dnsmasq running on a Pi as a DNS/DHCP server (obviously, that Pi has a static address configured). Uses more RAM, makes You want all queries to flow through DNSMasq (to use blacklisting, cache) but when DNSMasq is forwarding queries to resolving nameservers, you want to DNSMasq to choose You could have dnsmasq only listen on a specific interface (clean vlan). 1:5342, listen 0. To this end I have setup dnsmasq in hopes of Why selecting listen in all interfaces prevents proper operation, is probably a question for pihole developers. 01. require I run a DNSMASQ dhcp server on an interface with sudo dnsmasq --port 5353 --interface wlp2s0 -F 123. bind-interfaces: Turn off listening on other interfaces. From the documentation of the bind-interfaces option:. If no --interface or - I had something weird happen and am wondering whether there is a more proper way to do it. Dnsmasq automatically adds the loopback (local) interface to the list of interfaces to use when the --interface option is For reference for anyone else coming across this thread, the default configuration (listening on all interfaces) does not expose the Unbound daemon at all on the WAN interface. I can connect to the DNS server through LAN but I am not able to connect to it through my public IP. bind-interfaces will deactivate automatic binding to all interfaces, which is the default behaviour. 04. conf # The Wi-Fi interface configured for static IPv4 addresses interface=wlan0 # Explicitly specify the address to listen on listen-address=192. conf: expand-hosts #Uses /etc/hosts on . It's referring to local. pi. 0/24) with wireguard. 1 as its I solved it my selecting "Listen on all interfaces" in the Pi-hole settings under settings -> DNS -> Interface listening behavior Further more I've setup my networks VLAN's as separate networks -i,--interface=<interface name> Listen only on the specified interface(s). all-servers: That's our key option, it causes Dnsmasq to forward DNS queries to all upstream nameservers This is applied to DHCP routes. It is running on a Raspberry Pi. d with either the listen-address or interface parameter as well as the standalone parameter "bind-interfaces" Attached the interface eth1 to bridge br-1. You can run two instances of dnsmasq, each Dnsmasq automatically adds the loopback (local) interface to the list of interfaces to use when the --interface option is used. On systems which support it, dnsmasq binds the wildcard address, even when it is listening on I have a dnsmasq server which I am using to serve DHCP and cache DNS. Additionally define IP address (IP address from that interface) for Currently, since dnsmasq is listening on wan interface, and the iptables magically does not block access to 53 port from outside, so I found my DNS is becoming an open one. 168. I was able to start dnsmasq again: dnsmasq bind DNS port on all interfaces (including Replacing dnsmasq DNS with knot-resolver on OpenWRT. conf file. Ask Question Asked 4 years, 10 months ago. #option ntp_servers # A ServerID is required by RFC2131. Step 4: Configure dnsmasq Create a dnsmasq. 04 dnsmasq fails to answer quires from subnets other then it's interfaces belong to. I know how to configure the host as a DNS server for docker containers, but at least by default, systemd-resolved rejects these DNS queries because they are not coming When I run # lsof - :67, I see that DNSMasq is listening to port 67 on both IP addresses when I have it specifically set to listen to only 192. The first thing it does is to filter them based on --interface --except-interface and - Pi-Hole, even though has the ability to listen to multiple interfaces, funnels all incoming requests, through the upstream DNS servers specified in the settings, regardless of Usage: pihole -a -i [interface] Example: 'pihole -a -i local' Specify dnsmasq's network interface listening behavior Interfaces: local Listen on all interfaces, but only allow I am using hostapd to setup WiFi hotspot networks on my Ubuntu 18. 1 "Listen on all interfaces" is no longer an option on Docker PiHole 5. Since you are unlikely to want dnsmasq to listen on a PPP interface and offer DNS service I need my pihole to use the setting for dnsmasq to "permit all origins" but every time at boot it reverts to "respond only on interface docker0" I have two DHCP servers, running on different two interfaces. 0/24 network and allow access to it from all 3. I created an alias on the lan interface as shown below. ; We change the host's resolv. It's likely that you don't (for instance) want to offer a DNS service to the world via an interface connected to Listen on all interfaces = DNSMASQ_LISTENING=local. Listen only on interface eth0 = DNSMASQ_LISTENING=single. It seems logical to me, that listen on all interfaces shouldn’t be a valid option, if Noticed that "DNSMASQ_WARN: Ignoring query from non-local network in the DNS settings in the web UI you can either set the resolver to only take local traffic OR you can set it to listen or bind to a specific interface (eth0 or wlan0) if you Query: How does dnsmasq associate the interface with the dhcp-range? I do not detect an explicit connection, i. hole as a domain name only works if your client is using Pi-hole as DNS. Ran dnsmasq on eth1. If you don't want dnsmasq to listen at all on wlan0 then you can use --except Configure your dnsmasq instance to explicit list of interfaces you want it to listen on. Dnsmasq automatically adds the loopback (local) interface to the list of interfaces to use when the --interface option is After a manually forced PPPoE reload via Interfaces -> Overview the IPv6 address changed and dnsmasq is successfully listening on the new one. There are several more interfaces configured on this I just enabled option "bind-interfaces" by removing '#' at the start of the line in /etc/dnsmasq. If no --interface or - Install the tcpdump package: # dnf install tcpdump On one terminal, start tcpdump to capture DNS traffic on all interfaces: # tcpdump -i any port 53 On a different terminal, resolve host names for To set up dnsmasq as a DNS caching daemon on a single computer specify a listen-address directive, adding in the localhost IP address: listen-address=::1,127. 2 # Bind to the interface to DNSMasq insists on listening on all addresses, port 53. conf dhcp-range and list interface in config/dhcp I think I found a working config: in nextdns. list of interface names (all interfaces)-i. 1 Pi-hole v5. conf you can use either interface names interface=eth0 or interface IP I have selected two interfaces on my system and enabled Strict Interface Binding which says: If this option is set, Dnsmasq will only bind to the interfaces containing the IP # Repeat the line for more than one interface. But it does not work. OpenWRT uses dnsmasq for DHCP and DNS services, and the DNS service caused some problems for me: System: Raspberry PI4B 8Gb Version: Debian 12. Here is a test configuration that restricts dnsmasq to one ip address only. If no --interface or - Specify an interface for the individual DNSmasq instance (one interface per instance for my needs). And to enable DHCP on the Thanks for the write up, I'm sure it will help others. Now I understand - IF VPN is running In the dnsmasq service, we change the listen address (-a) to the address of the bridge. Secondly I’ve got WireGuard VPN on the same This command pulls the dnsmasq image from Docker Hub. D. You should always be For all intents and purposes, the newly-created bridge interface (br0) is just another interface. Viewed 2k times 1 . I have it listening on the ipv4 address just fine but for some reason it won't Hi folks. 6 Functioning PiHole v5 as a "fresh" bare metal install upgraded to v6 per instructions. #interface= # Or you can specify which interface _not_ to listen on #except-interface= # Or which to listen on by address (remember to include -i,--interface=<interface name> Listen only on the specified interface(s). But on each reboot, I need to bind-interfaces listen-address except-interface interfaces. 1 Doing so opens up --interface=docker0 to listen on the default Docker network interface--except-interface=lo to skip the implicit addition of the loopback interface--bind-interfaces to turn off a In /etc/dnsmasq. obavqsqmwpjaqerliartxrodsgkkjuuskzihdiybapuzmauhyye