docs/docker-trusted-registry/reference/reconfigure.md

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---
description: Docker Trusted Registry reconfigure command reference.
keywords:
- docker, registry, reference, reconfigure
menu:
main:
identifier: dtr_reference_reconfigure
parent: dtr_menu_reference
title: reconfigure
---
# docker/dtr reconfigure
Change DTR configurations
# Usage
```bash
$ docker run -it --rm docker/dtr \
reconfigure [command options]
```
## Description
This command changes specified configurations for DTR and leaves
existing configurations in its original state.
WARNING: DTR is restarted for the new configurations to take
effect. To have no down time, configure your DTR for high-availability.
| Option | Description |
|:---------------------------|:-------------------------------------------------------------------------------------------------|
| `--ucp-url` | Specify the UCP controller URL [$UCP_URL] |
| `--ucp-username` | Specify the UCP admin username [$UCP_USERNAME] |
| `--ucp-password` | Specify the UCP admin password [$UCP_PASSWORD] |
| `--debug` | Enable debug mode, provides additional logging [$DEBUG] |
| `--hub-username` | Specify the Docker Hub username for pulling images [$HUB_USERNAME] |
| `--hub-password` | Specify the Docker Hub password for pulling images [$HUB_PASSWORD] |
| `--http-proxy` | Set the HTTP proxy for outgoing requests [$DTR_HTTP_PROXY] |
| `--https-proxy` | Set the HTTPS proxy for outgoing requests [$DTR_HTTPS_PROXY] |
| `--no-proxy` | Set the list of domains to not proxy to [$DTR_NO_PROXY] |
| `--replica-http-port "0"` | Specify the public HTTP port for the DTR replica [$REPLICA_HTTP_PORT] |
| `--replica-https-port "0"` | Specify the public HTTPS port for the DTR replica [$REPLICA_HTTPS_PORT] |
| `--log-protocol` | The protocol for sending container logs: tcp, udp or internal. Default: internal [$LOG_PROTOCOL] |
| `--log-host` | Endpoint to send logs to, required if --log-protocol is tcp or udp [$LOG_HOST] |
| `--log-level` | Log level for container logs. Default: INFO [$LOG_LEVEL] |
| `--dtr-load-balancer` | Specify the domain name and port for the DTR load balancer [$DTR_LOAD_BALANCER] |
| `--ucp-insecure-tls` | Disable TLS verification for UCP [$UCP_INSECURE_TLS] |
| `--ucp-ca` | Use a PEM-encoded TLS CA certificate for UCP [$UCP_CA] |
| `--existing-replica-id` | ID of an existing replica in a cluster [$DTR_EXISTING_REPLICA_ID] |