cmd/strelaysrv: Increase default strelaysrv network buffer size (fixes #7514) (#7517)

Increases throughput at the cost of more memory per connection

cmd/strelaysrv/main.go

@@ -99,7 +99,7 @@ func main() {
 	flag.IntVar(&natRenewal, "nat-renewal", 30, "NAT renewal frequency in minutes")
 	flag.IntVar(&natTimeout, "nat-timeout", 10, "NAT discovery timeout in seconds")
 	flag.BoolVar(&pprofEnabled, "pprof", false, "Enable the built in profiling on the status server")
-	flag.IntVar(&networkBufferSize, "network-buffer", 2048, "Network buffer size (two of these per proxied connection)")
+	flag.IntVar(&networkBufferSize, "network-buffer", 65536, "Network buffer size (two of these per proxied connection)")
 	showVersion := flag.Bool("version", false, "Show version")
 	flag.Parse()
 
@@ -233,6 +233,7 @@ func main() {
 	uri, err := url.Parse(fmt.Sprintf("relay://%s/?id=%s&pingInterval=%s&networkTimeout=%s&sessionLimitBps=%d&globalLimitBps=%d&statusAddr=%s&providedBy=%s", mapping.Address(), id, pingInterval, networkTimeout, sessionLimitBps, globalLimitBps, statusAddr, providedBy))
 	if err != nil {
 		log.Fatalln("Failed to construct URI", err)
+		return
 	}
 
 	log.Println("URI:", uri.String())