Added host URL normalization

configuration/configuration.go

@@ -63,6 +63,10 @@ func (c *Configuration) Validate() error {
 		if !(u.Scheme == "http" || u.Scheme == "https") {
 			return fmt.Errorf("PVE host '%s' must be protocol type of HTTP or HTTPS.", host)
 		}
+
+		if u.Hostname() == "" {
+			return fmt.Errorf("PVE host '%s' must contain an IP address or DNS name.", host)
+		}
 	}
 
 	// Validate PVE token