[feat] log dns lookup if first cert fetch fails

1 files changed, 19 insertions, 0 deletions

diff --git a/pkg/vpn/diagnose.go b/pkg/vpn/diagnose.go
new file mode 100644
index 0000000..5d12d4d
--- /dev/null
+++ b/pkg/vpn/diagnose.go
@@ -0,0 +1,19 @@
+package vpn
+
+import (
+	"log"
+	"net"
+)
+
+func logDnsLookup(domain string) {
+	addrs, err := net.LookupHost(domain)
+	if err != nil {
+		log.Println("ERROR cannot resolve address:", domain)
+		log.Println(err)
+	}
+
+	log.Println("From here,", domain, "resolves to:")
+	for _, addr := range addrs {
+		log.Println(addr)
+	}
+}