systemctl sudo unable to resolve host webserver

This file is generated by NetworkManager and also contains DNS servers from DHCP leases. Now you must tell dnsmasq to get its upstream servers from somewhere other that /etc/nf: $ cat /etc/nf If for some reasons you prefer to have dnsmasq running separately, you must first prevent NetworkManager from overriding /etc/nf: $ cat /etc/NetworkManager/nf dev to 127.0.0.1ĭo not forget to disable the system-wide dnsmasq service if present and apply your changes: $ sudo systemctl stop rvice & sudo systemctl disable rvice You can now benefit from the flexibility of NetworkManager along dnsmasq, whose config is located in /etc/NetworkManager/dnsmasq.d: $ cat /etc/NetworkManager/dnsmasq.d/nf Now you can enable the NetworkManager built-in dnsmasq resolver: $ cat /etc/NetworkManager/nf This is very good to have a little DNS service to test local websites for a web development machine.įirst, verify that NetworkManager manages your current interface ( wlp0s20f3 in my case): $ nmcli dev The dnsmasq lightweight caching DNS server accepts DNS queries and either answers them from a small, local, cache or forwards them to a real, recursive, DNS server. This file contains DNS servers from DHCP leases but be aware that you will not benefit from the stub resolver caching feature.

If it does not work, try the following: $ sudo ln -sf /run/systemd/resolve/nf /etc/nf Note that 127.0.0.53 is the loopback interface but you can have another DNS server listening on port 53 at another IP address on the loopback interface, like 127.0.0.1 or 127.0.0.2. Make sure you do not have any other service like dnsmasq listening to the same address and port. On older versions you might need to manually symlink it with the following: $ sudo ln -sf /run/systemd/resolve/nf /etc/nfīy default, systemd-resolved configures a local DNS server listening at 127.0.0.53 on port 53 and you can run lsof -i to verify. On Ubuntu 20.04, systemd-resolved is a local DNS server included with systemd that acts as a stub resolver and it should automatically edit /etc/nf with the correct config.

If this file does not exist, only the name server on the local machine will be queried, and the search list contains the local domain name determined from the hostname. The resolver config file contains information that is read by the resolver routines the first time they are invoked by a process. The resolver is a set of routines in the C library that provide access to the Internet Domain Name System (DNS).

Systemctl sudo unable to resolve host webserver