DoH is standardized through IETF and standardport for resolvers is 443. It encrypts the traffic and prevents dns spoofing or man-in-the-middle-attacks. Thanks to mimugmail This plugin supports DNSCrypt ( ) and DNS over HTTPS (DoH) with DNSSEC and DNSBL.ĭNSCrypt or DNS over HTTPS = protocol that authenticates communications between a dns-client and a dns-resolver. Tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
The command output should look like this: you can find it using "ifconfig" -, and "176.56.237.171" is the default resolver used by Pascal's packages - if you've used a different one, change it in the command above with yours!) (where NETWORK-INTERFACE is your active network interface like eth0, p5p1, etc. and then visiting some website in your web browser. 0 IN TXT " dnscrypt enabled (717473654A614970)"Īnother way of checking if dnscrypt-proxy is working, if you're using a non-default server is to use the following command: sudo tcpdump -i NETWORK-INTERFACE dst host 176.56.237.171.
flags: qr rd ra QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 1ĭ. >HEADER<<- opcode: QUERY, status: NOERROR, id: 48647
which should display something like this: for Ubuntu 16.04, 16.10 and 17.04 / Linux Mint 18 (using the dnscrypt-proxy package from the official repositories this assumes you're using the default server!), run the following command:ĭig txt. You may want to check if the "127.0.0.2" DNS is actually in use (it needs to be the only DNS) - to do this in Unity, from the Network indicator select Connection Information.
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