Hi, Today Firefox switched over to using 'DNS over HTTPS (DoH)' by default.
https://blog.mozilla.org/netpolicy/2020/02/25/the-facts-mozillas-dns-over-https-doh/ We can do this in Pharo as well, even out of the box (minus the interpretation of the results, but still). First, what is this ? A good description is: https://developers.cloudflare.com/1.1.1.1/dns-over-https/ Using the Cloudflare server, we can do the following in Pharo, using the JSON wire format. ZnClient new url: 'https://cloudflare-dns.com/dns-query'; accept: 'application/dns-json'; queryAt: #name put: 'pharo.org'; queryAt: #type put: 'A'; contentReader: [ :entity | STONJSON fromString: entity contents ]; get. The actual address can be accessed inside the returned result. SocketAddress fromDottedString: (((ZnClient new url: 'https://cloudflare-dns.com/dns-query'; accept: 'application/dns-json'; queryAt: #name put: 'pharo.org'; queryAt: #type put: 'A'; contentReader: [ :entity | STONJSON fromString: entity contents ]; get) at: #Answer) first at: #data). If you load the following code, https://github.com/svenvc/NeoDNS it is just as easy to use the binary UDP wire format. ZnClient new url: 'https://cloudflare-dns.com/dns-query'; accept: 'application/dns-message'; contentWriter: [ :message | ZnEntity with: message asByteArray type: 'application/dns-message' ]; contentReader: [ :entity | DNSMessage readFrom: entity readStream ]; contents: (DNSMessage addressByName: 'pharo.org'); post. Again, the actual address can be accessed inside the returned object. (ZnClient new url: 'https://cloudflare-dns.com/dns-query'; accept: 'application/dns-message'; contentWriter: [ :message | ZnEntity with: message asByteArray type: 'application/dns-message' ]; contentReader: [ :entity | DNSMessage readFrom: entity readStream ]; contents: (DNSMessage addressByName: 'pharo.org'); post) answers first address. Incidentally, a more robust answer can be got as follows: NeoSimplifiedDNSClient default addressForName: 'pharo.org'. Sven
