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That topic would need an article of its own, but below are my systemd-networkd config files as an example to get you started. I disable NetworkManager and use systemd-netword instead though. It is possible to set up separate DNS servers for separate networks (domains). You should see a TLS-encryped exchange between your computer and your configured DNS server: You need to flush the local DNS caches before you can capture a DNS query: $ sudo resolvectl flush-caches Set up a filter in Wireshark like tcp.port = 853 (853 is the DNS over TLS protocol port). In my case, because I use a wireless interface, I will go ahead with wlp58s0. It will ask you which link device it have to begin capturing packets on. #Mullvad network traffic might be leaking install#Information acquired via protocol DNS in 36.3ms.īONUS Step 5 : Use Wireshark to verify the configurationįirst, install and run Wireshark: $ sudo dnf install wireshark To make a secure query, run: $ resolvectl query į: 8.43.85.67 - link: wlp58s0 State Recv-Q Send-Q Local Address:Port Peer Address:Port Process To see the address and port that systemd-resolved is sending and receiving secure queries on, run: $ sudo ss -lntp | grep '\(State\|:53 \)' etc/nf should point to 127.0.0.53 $ cat /etc/nf Confirm this by checking DNS resolution status with: $ resolvectl status There are plans to enable systemd-resolved by default in Fedora 33. NOTE: Currently, the systemd-resolved service is disabled by default and its use is opt-in. Then restart NetworkManager.ĬAUTION: This will lead to a loss of connection for a few seconds while NetworkManager is restarting. To make the settings configured in the previous steps take effect, start and enable systemd-resolved. #Mullvad network traffic might be leaking free#This is fine on a trusted network, but feel free to set dns=none instead to use the DNS servers configured in /etc/systemd/nf. This will override the DNS settings configured in Step 1. ![]() The setting shown above ( dns=systemd-resolved) will cause NetworkManager to push DNS information acquired from DHCP to the systemd-resolved service. Step 2 : Tell NetworkManager to push info to systemd-resolvedĬreate a file in /etc/NetworkManager/conf.d named nf. You should decide which DNS servers you want to use being mindful of whom you are asking IPs for internet navigation. NOTE: The DNS servers listed in the above example are my personal choices. Note that this mode requires a DNS server that supports DNS-over-TLS and has a valid certificate for it’s IP.
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