Change some logging settings.

.env.example

@@ -58,8 +58,20 @@ PAPERTRAIL_PORT=
 APP_LOG_LEVEL=notice
 
 # Audit log level.
-# Set this to "emergency" if you dont want to store audit logs, leave on info otherwise.
+# The audit log is used to log notable Firefly III events on a separate channel.
-AUDIT_LOG_LEVEL=info
+# These log entries may contain sensitive financial information.
+# The audit log is disabled by default.
+#
+# To enable it, set AUDIT_LOG_LEVEL to "info"
+# To disable it, set AUDIT_LOG_LEVEL to "emergency"
+AUDIT_LOG_LEVEL=emergency
+
+#
+# If you want, you can redirect the audit logs to another channel.
+# Options are: 'papertrail', 'syslog' OR 'errorlog'
+#
+# If you do this, the audit logs may be mixed with normal logs (if they also use the same channel).
+AUDIT_LOG_CHANNEL=
 
 # Database credentials. Make sure the database exists. I recommend a dedicated user for Firefly III
 # For other database types, please see the FAQ: https://docs.firefly-iii.org/firefly-iii/faq/self-hosted/#i-want-to-use-sqlite

app/Handlers/Events/VersionCheckEventHandler.php

@@ -57,7 +57,7 @@ class VersionCheckEventHandler
         $permission = app('fireflyconfig')->get('permission_update_check', -1);
         $value      = (int)$permission->data;
         if (1 !== $value) {
-            Log::info('Update check is not enabled.');
+            Log::debug('Update check is not enabled.');
             $this->warnToCheckForUpdates($event);
 
             return;
@@ -103,7 +103,7 @@ class VersionCheckEventHandler
         $repository = app(UserRepositoryInterface::class);
         $user       = $event->user;
         if (!$repository->hasRole($user, 'owner')) {
-            Log::debug('User is not admin, done.');
+            Log::notice('User is not admin, done.');
 
             return;
         }

config/logging.php

@@ -24,6 +24,15 @@ declare(strict_types=1);
 use FireflyIII\Support\Logging\AuditLogger;
 use Monolog\Handler\SyslogUdpHandler;
 
+// to correctly redirect audit channel messages the
+// options for the audit stack are set here, but can be overruled
+// from an environment variable:
+$auditChannels = ['audit_daily', 'audit_stdout'];
+$option        = envNonEmpty('AUDIT_LOG_CHANNEL', '');
+if ('' !== (string)$option) {
+    $auditChannels = [$option];
+}
+
 return [
     /*
     |--------------------------------------------------------------------------
@@ -53,14 +62,14 @@ return [
     */
 
     'channels' => [
-        // default channels for 'stack' and audit logs:
+        // default channels for 'stack' and 'audit' logs are stdout and daily logs.
         'stack'        => [
             'driver'   => 'stack',
             'channels' => ['daily', 'stdout'],
         ],
         'audit'        => [
             'driver'   => 'stack',
-            'channels' => ['audit_daily', 'audit_stdout'],
+            'channels' => $auditChannels,
         ],
         'papertrail'   => [
             'driver'       => 'monolog',