Sync peers FQDN (#584)

Use stdout and stderr log path only if on Linux and attempt to create the path

Update status system with FQDN fields and 
status command to display the domain names of remote and local peers

Set some DNS logs to tracing

update readme file

client/cmd/service_installer.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"context"
+	"os"
 	"path/filepath"
 	"runtime"
 
@@ -38,13 +39,29 @@ var installCmd = &cobra.Command{
 
 		if logFile != "console" {
 			svcConfig.Arguments = append(svcConfig.Arguments, "--log-file", logFile)
-			svcConfig.Option["LogOutput"] = true
-			svcConfig.Option["LogDirectory"] = filepath.Dir(logFile)
 		}
 
 		if runtime.GOOS == "linux" {
 			// Respected only by systemd systems
 			svcConfig.Dependencies = []string{"After=network.target syslog.target"}
+
+			if logFile != "console" {
+				setStdLogPath := true
+				dir := filepath.Dir(logFile)
+
+				_, err := os.Stat(dir)
+				if err != nil {
+					err = os.MkdirAll(dir, 0750)
+					if err != nil {
+						setStdLogPath = false
+					}
+				}
+
+				if setStdLogPath {
+					svcConfig.Option["LogOutput"] = true
+					svcConfig.Option["LogDirectory"] = dir
+				}
+			}
 		}
 
 		ctx, cancel := context.WithCancel(cmd.Context())