---
name: "dlt-daemon"
section: "1"
platform: "linux"
package: "dlt-daemon"
version: "2.18.10-10+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/dlt-daemon"
---

# dlt-daemon(1)

Diagnostic Log and Trace daemon

## NAME

**dlt-daemon** - Diagnostic Log and Trace daemon

## SYNOPSIS

**dlt-daemon** \[**-h**\] \[**-d**\] \[**-c** filename\] \[**-t** directory\] \[**-p** port\] \[**-a** filename\]

## DESCRIPTION

The DLT daemon is the central place where logs and traces are gathered from different applications, stored temporarily or permanently and transferred to a DLT client application, which can run directly on the COVESA system or more likely on a external tester device.

### OPTIONS

- \-h

  Display a short help text.

- \-d

  Daemonize, needed in System V init systems.

- \-c

  Load an alternative configuration file. By default the configuration file /etc/dlt.conf is loaded.

- \-t

  Directory for local fifo and user-pipes (Default: /tmp). Applications wanting to connect to a daemon using a custom directory need to be started with the environment variable DLT\_PIPE\_DIR set appropriately.

- \-p

  Port to monitor for incoming requests (Default: 3490) Applications wanting to connect to a daemon using a custom port need to be started with the environment variable DLT\_DAEMON\_TCP\_PORT set appropriately.

- \-a

  Load an alternative configuration for app id log level defaults. By default, the configuration file /etc/dlt-log-levels.conf is loaded.

## EXAMPLES

Start DLT daemon in background mode: **dlt-daemon -d**

Start DLT daemon with own configuration: **dlt-daemon -c** **~/my-dlt-configuration.cfg**

Start DLT daemon with custom pipes directory: **dlt-daemon -t** **~/dlt\_pipes**

Start DLT daemon listening on custom port 3500: **dlt-daemon -p** **3500**

## EXIT STATUS

Non zero is returned in case of failure.

## AUTHOR

Alexander Wenzel (alexander.aw.wenzel (at) bmw (dot) de)

## COPYRIGHT

Copyright (C) 2016 BMW AG. License MPL-2.0: Mozilla Public License version 2.0 ⟨http://mozilla.org/MPL/2.0/⟩\\c .

## BUGS

See Github issue: ⟨https://github.com/COVESA/dlt-daemon/issues⟩\\c

## SEE ALSO

**[dlt.conf(5)](/dlt.conf/5.md)**, **[dlt-system(1)](/dlt-system/1.md)**