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How to configure systemd resolved and systemd networkd?
I would like to configure systemd-resolved and systemd-networkd so that lookup requests for local hostnames would be directed (routed) exclusively to local DNS server and lookup requests for all other hostnames would be directed exclusively to another, remote DNS server.
How to troubleshoot DNS with systemd-resolved?
We can do this in /etc/systemd/resolved.conf file: Caution! Above guarantees apply only when names are being resolved by systemd-resolved – see man page for nss-resolve, libnss_resolve.so.2 and man page for systemd-resolved.service, systemd-resolved. How to troubleshoot DNS with systemd-resolved?
How to disable systemd-resolved in Ubuntu?
The local DNS server is then not used and all DNS requests are sent to my HUB. I think this is a much better solution than cutting out and putting in some other solution since systemd-resolv is now the default onwards. A related problem btw is that the /etc/nsswitch.conf is neutered.
How is hosty.on.internet resolved in Linux?
This way hostY.on.the.internet will be resolved exclusively by our global, remote DNS server. Ideally, when using DHCP protocol, local domain names should be obtained from DHCP server instead of being specified explicitly in configuration file of network interface above.
Why does systemd-resolved not query DNS server for local domain?
I got the same problem on Ubuntu 18.04, which also use systemd-resolved for DNS. Its default configuration does not resolve single-label hostnames or .local domain hostnames by DNS, but by LLMNR or mDNS respectively.
How does multicast work in a mDNS server?
All mDNS hosts see this query and the host that has this network name responds to the query using a multicast message that contains it’s IP address. Because messages were exchanged using multicast all other mDNS hosts see this exchange and can make a note of the network name and IP address, and store this in their local cache.
Which is systemd service resolves a DNS stub?
systemd-resolved is a systemd service that provides network name resolution to local applications via a D-Bus interface, the resolve NSS service (nss-resolve (8)), and a local DNS stub listener on 127.0.0.53. See systemd-resolved (8) for the usage.