Add public DNS servers

n0madic · Sep 23, 2023 · 1dd6cf9 · 1dd6cf9
1 parent 9b90f68
commit 1dd6cf9
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Showing 3 changed files with 36 additions and 2 deletions.
diff --git a/README.md b/README.md
@@ -19,6 +19,7 @@ This util performs a ping to measure the network latency from your location to t
 - Microsoft Azure
 - Oracle Cloud
 - OVH Cloud
+- Public DNS servers
 - QingCloud
 - Qiniu Cloud
 - Scaleway

diff --git a/main.go b/main.go
@@ -57,7 +57,13 @@ func main() {
 	t := table.NewWriter()
 	t.SetOutputMirror(os.Stdout)
 	t.SetAutoIndex(true)
-	t.AppendHeader(table.Row{"Provider", "Region", "Location", "RTT", "Status"})
+	if args.Provider == "dns" && !args.All {
+		t.SetTitle("Public DNS Servers")
+		t.Style().Title = table.TitleOptions{Align: text.AlignCenter}
+		t.AppendHeader(table.Row{"Provider", "Type", "Address", "RTT", "Status"})
+	} else {
+		t.AppendHeader(table.Row{"Provider", "Region", "Location", "RTT", "Status"})
+	}
 	var minRTT time.Duration
 	for _, region := range results {
 		status := text.FgGreen.Sprint("OK")
@@ -76,7 +82,11 @@ func main() {
 		if rtt < minRTT || minRTT == 0 {
 			minRTT = rtt
 		}
-		t.AppendRow(table.Row{region.code, region.name, region.location, rtt, status})
+		if args.Provider == "dns" && !args.All {
+			t.AppendRow(table.Row{region.name, region.location, region.endpoint, rtt, status})
+		} else {
+			t.AppendRow(table.Row{region.code, region.name, region.location, rtt, status})
+		}
 	}
 	t.SetColumnConfigs([]table.ColumnConfig{
 		{

diff --git a/providers.go b/providers.go
@@ -158,6 +158,29 @@ var providers = provider{
 			// {name: "tor1", location: "Toronto, CA"},
 		},
 	},
+	"dns": {
+		name: "Public DNS servers",
+		regions: []*region{
+			{name: "AdGuard DNS", endpoint: "94.140.14.14", location: "primary"},
+			{name: "AdGuard DNS", endpoint: "94.140.15.15", location: "secondary"},
+			{name: "Alternate DNS", endpoint: "76.76.19.19", location: "primary"},
+			{name: "Alternate DNS", endpoint: "76.223.122.150", location: "secondary"},
+			{name: "Cloudflare", endpoint: "1.1.1.1", location: "primary"},
+			{name: "Cloudflare", endpoint: "1.0.0.1", location: "secondary"},
+			{name: "Comodo", endpoint: "8.26.56.26", location: "primary"},
+			{name: "Comodo", endpoint: "8.20.247.20", location: "secondary"},
+			{name: "ControlD", endpoint: "76.76.2.0", location: "primary"},
+			{name: "ControlD", endpoint: "76.76.10.0", location: "secondary"},
+			{name: "Google", endpoint: "8.8.8.8", location: "primary"},
+			{name: "Google", endpoint: "8.8.4.4", location: "secondary"},
+			{name: "NextDNS", endpoint: "45.90.28.190", location: "primary"},
+			{name: "NextDNS", endpoint: "45.90.30.190", location: "secondary"},
+			{name: "OpenDNS", endpoint: "208.67.222.222", location: "primary"},
+			{name: "OpenDNS", endpoint: "208.67.220.220", location: "secondary"},
+			{name: "Quad9", endpoint: "9.9.9.9", location: "primary"},
+			{name: "Quad9", endpoint: "149.112.112.112", location: "secondary"},
+		},
+	},
 	"gcore": {
 		name:         "Gcore Cloud",
 		hostTemplate: "https://console-serial-%s.cloud.gcorelabs.com",