Change default DOH to cloudflarte

README.md

   -b, --tcp-buffer="4KB"               Size of TCP buffer to use.
   -i, --prefer-ip="prefer-ipv6"        IP preference. By default we prefer IPv6 with fallback to IPv4.
   -p, --domain-fronting-port=443       A port to access for domain fronting.
-  -n, --doh-ip=9.9.9.9                 IP address of DNS-over-HTTP to use.
+  -n, --doh-ip=1.1.1.1                 IP address of DNS-over-HTTP to use.
   -t, --timeout=10s                    Network timeout to use
   -a, --antireplay-cache-size="1MB"    A size of anti-replay cache to use.
 ```

example.config.toml

 # resolver of the operating system and uses DOH instead. This is a host
 # it has to access.
 #
-# By default we use Quad9.
-doh-ip = "9.9.9.9"
+# By default we use Cloudflare.
+doh-ip = "1.1.1.1"
 
 # mtg can work via proxies (for now, we support only socks5). Proxy
 # configuration is done via list. So, you can specify many proxies

internal/cli/simple_run.go

 	TCPBuffer           string        `kong:"name='tcp-buffer',short='b',default='4KB',help='Deprecated and ignored'"`                                                 //nolint: lll
 	PreferIP            string        `kong:"name='prefer-ip',short='i',default='prefer-ipv6',help='IP preference. By default we prefer IPv6 with fallback to IPv4.'"` //nolint: lll
 	DomainFrontingPort  uint64        `kong:"name='domain-fronting-port',short='p',default='443',help='A port to access for domain fronting.'"`                        //nolint: lll
-	DOHIP               net.IP        `kong:"name='doh-ip',short='n',default='9.9.9.9',help='IP address of DNS-over-HTTP to use.'"`                                    //nolint: lll
+	DOHIP               net.IP        `kong:"name='doh-ip',short='n',default='1.1.1.1',help='IP address of DNS-over-HTTP to use.'"`                                    //nolint: lll
 	Timeout             time.Duration `kong:"name='timeout',short='t',default='10s',help='Network timeout to use'"`                                                    //nolint: lll
 	Socks5Proxies       []string      `kong:"name='socks5-proxy',short='s',help='Socks5 proxies to use for network access.'"`                                          //nolint: lll
 	AntiReplayCacheSize string        `kong:"name='antireplay-cache-size',short='a',default='1MB',help='A size of anti-replay cache to use.'"`                         //nolint: lll

mtglib/internal/dc/view.go

 
 type dcView struct {
 	overrides dcAddrSet
-	collected dcAddrSet
 }
 
 func (d dcView) getV4(dc int) []Addr {
 	addrs := d.overrides.getV4(dc)
 	addrs = append(addrs, defaultDCOverridesAddrSet.getV4(dc)...)
-	// addrs = append(addrs, d.collected.getV4(dc)...)
 	addrs = append(addrs, defaultDCAddrSet.getV4(dc)...)
 
 	return addrs
 func (d dcView) getV6(dc int) []Addr {
 	addrs := d.overrides.getV6(dc)
 	addrs = append(addrs, defaultDCOverridesAddrSet.getV6(dc)...)
-	// addrs = append(addrs, d.collected.getV6(dc)...)
 	addrs = append(addrs, defaultDCAddrSet.getV6(dc)...)
 
 	return addrs

mtglib/internal/dc/view_test.go

 				},
 			},
 		},
-		collected: dcAddrSet{
-			v4: map[int][]Addr{
-				1: {
-					{Network: "tcp4", Address: "127.1.0.1:443"},
-				},
-			},
-		},
 	}
 }
 
 			{"tcp4", "149.154.167.51:443"},
 			{"tcp4", "95.161.76.100:443"},
 		},
-		1: {
-			{"tcp4", "127.1.0.1:443"},
-			{"tcp4", "149.154.175.50:443"},
-		},
 	}
 
 	for dc, addresses := range testData {

network/init.go

 	// DefaultDOHHostname defines a default IP address for DOH host. Since mtg is
 	// simple, please pass IP address here. We do not have bootstrap servers here
 	// embedded.
-	DefaultDOHHostname = "9.9.9.9"
+	DefaultDOHHostname = "1.1.1.1"
 
 	// DNSTimeout defines a timeout for DNS queries.
 	DNSTimeout = 5 * time.Second