---
id: configuration
title: "Configuration File"
---

This file is the cornerstone of Verdaccio where you can modify the default behaviour, enable plugins and extend features.

A default configuration file `config.yaml` is created the very first time you run `verdaccio`.

## Default Configuration {#default-configuration}

The default configuration has support for **scoped** packages and allows any user to **access** all packages, but only authenticated users to **publish**.

```yaml
storage: ./storage
auth:
  htpasswd:
    file: ./htpasswd
uplinks:
  npmjs:
    url: https://registry.npmjs.org/
packages:
  "@*/*":
    access: $all
    publish: $authenticated
    proxy: npmjs
  "**":
    proxy: npmjs
log: { type: stdout, format: pretty, level: http }
```

## Sections {#sections}

The following sections explain what each property means and their different options.

### Storage {#storage}

Is the location of the default storage. **Verdaccio is by default based on local file system**.

```yaml
storage: ./storage
```

> Released at v5.6.0: The environment variable `VERDACCIO_STORAGE_PATH` could be used to replace the location of the storage (only for the default storage, does not apply to plugins unless it is implemented independently).

### Plugins {#plugins}

Is the location of the plugin directory. Useful for Docker/Kubernetes-based deployments.

```yaml
plugins: ./plugins
```

### Authentication {#authentication}

The authentication setup is done here. The default auth is based on `htpasswd` and is built in. You can modify this behaviour via [plugins](plugins.md). For more information about this section read the [auth page](auth.md).

```yaml
auth:
  htpasswd:
    file: ./htpasswd
    max_users: 1000
```

### Security {#security}

<small>Since: `verdaccio@4.0.0` [#168](https://github.com/verdaccio/verdaccio/pull/168)</small>

The security block allows you to customise the token signature. To enable a new [JWT (JSON Web Tokens)](https://jwt.io/) signature you need to add the block `jwt` to the `api` section; `web` uses `jwt` by default.

The configuration is separated in two sections, `api` and `web`. To use JWT on `api` it has to be defined, otherwise the legacy token signature (`aes192`) will be used. For JWT you might want to customize the [signature](https://github.com/auth0/node-jsonwebtoken#jwtsignpayload-secretorprivatekey-options-callback) and the token [verification](https://github.com/auth0/node-jsonwebtoken#jwtverifytoken-secretorpublickey-options-callback) with your own properties.

```
security:
  api:
    legacy: true
    jwt:
      sign:
        expiresIn: 29d
      verify:
        someProp: [value]
   web:
     sign:
       expiresIn: 1h # 1 hour by default
     verify:
     	someProp: [value]
```

> We highly recommend move to JWT since legacy signature (`aes192`) is deprecated and will disappear in future versions.

### Server {#server}

A set of properties to modify the behavior of the server application, specifically the API (Express.js).

> You can specify HTTP/1.1 server keep alive timeout in seconds for incomming connections.
> A value of 0 makes the http server behave similarly to Node.js versions prior to 8.0.0, which did not have a keep-alive timeout.
> WORKAROUND: Through given configuration you can workaround following issue https://github.com/verdaccio/verdaccio/issues/301. Set to 0 in case 60 is not enough.

```yaml
server:
  keepAliveTimeout: 60
```

### Web UI {#web-ui}

This property allow you to modify the look and feel of the web UI. For more information about this section read the [web UI page](web.md).

```yaml
web:
  enable: true
  title: Verdaccio
  logo: logo.png
  scope:
```

### Uplinks {#uplinks}

Uplinks add the ability to fetch packages from remote registries when those packages are not available locally. For more information about this section read the [uplinks page](uplinks.md).

```yaml
uplinks:
  npmjs:
    url: https://registry.npmjs.org/
```

### Packages {#packages}

This section allows you to control how packages are accessed. For more information about this section read the [packages page](packages.md).

```yaml
packages:
  "@*/*":
    access: $all
    publish: $authenticated
    proxy: npmjs
```

## Advanced Settings {#advanced-settings}

### Offline Publish {#offline-publish}

By default `verdaccio` does not allow you to publish packages when the client is offline. This can be can be overridden by setting this value to _true_.

```yaml
publish:
  allow_offline: false
```

<small>Since: `verdaccio@2.3.6` due [#223](https://github.com/verdaccio/verdaccio/pull/223)</small>

### URL Prefix {#url-prefix}

The prefix is intended to be used when the server runs behinds the proxy and won't work properly if is used without a reverse proxy, check the **reverse proxy setup** page for more details.

The internal logic builds correctly the public url, validates the `host` header and and bad shaped `url_prefix`.

eg: `url_prefix: /verdaccio`, `url_prefix: verdaccio/`, `url_prefix: verdaccio` would be `/verdaccio/`

```yaml
url_prefix: /verdaccio/
```

The new `VERDACCIO_PUBLIC_URL` is intended to be used behind proxies, this variable will be used for:

- Used as base path to serve UI resources as (js, favicon, etc)
- Used on return metadata `dist` base path
- Ignores `host` and `X-Forwarded-Proto` headers
- If `url_prefix` is defined would be appended to the env variable.


Read more about `VERDACCIO_PUBLIC_URL` [at the environment variables page](env.md#public-url).


### User Agent {#user-agent}

<small>Since: `verdaccio@5.4.0`</small>

The user agent is disabled by default, in exchange the user agent client (package manager, browser, etc ...) is being bypassed to the remote. To enable the previous behaviour use boolean values.

```yaml
user_agent: true
user_agent: false
user_agent: 'custom user agent'
```

### User Rate Limit {#user-rate-limit}

<small>Since: [verdaccio@5.4.0](https://github.com/verdaccio/verdaccio/releases/tag/v5.4.0)</small>

Add default rate limit to user endpoints, `npm token`, `npm profile`, `npm loding/adduser` and login website to 100 request peer 15 min, customizable via:

```
userRateLimit:
  windowMs: 50000
  max: 1000
```

Additonal configuration (only feature flags) is also possible via the [middleware docs](https://github.com/nfriedly/express-rate-limit/#configuration-options).

### Max Body Size {#max-body-size}

By default the maximum body size for a JSON document is `10mb`, if you run into errors that state `"request entity too large"` you may increase this value.

```yaml
max_body_size: 10mb
```

### Listen Port {#listen-port}

`verdaccio` runs by default on the port `4873`. Changing the port can be done via [CLI](cli.md) or in the configuration file. The following options are valid:

```yaml
listen:
# - localhost:4873            # default value
# - http://localhost:4873     # same thing
# - 0.0.0.0:4873              # listen on all addresses (INADDR_ANY)
# - https://example.org:4873  # if you want to use https
# - "[::1]:4873"                # ipv6
# - unix:/tmp/verdaccio.sock    # unix socket
```

### HTTPS {#https}

To enable `https` in `verdaccio` it's enough to set the `listen` flag with the protocol _https://_. For more information about this section read the [SSL page](ssl.md).

```yaml
https:
  key: ./path/verdaccio-key.pem
  cert: ./path/verdaccio-cert.pem
  ca: ./path/verdaccio-csr.pem
```

### Proxy {#proxy}

Proxies are special-purpose HTTP servers designed to transfer data from remote servers to local clients.

#### http_proxy and https_proxy {#http_proxy-and-https_proxy}

If you have a proxy in your network you can set a `X-Forwarded-For` header using the following properties:

```yaml
http_proxy: http://something.local/
https_proxy: https://something.local/
```

#### no_proxy {#no_proxy}

This variable should contain a comma-separated list of domain extensions that the proxy should not be used for.

```yaml
no_proxy: localhost,127.0.0.1
```

### Notifications {#notifications}

Enabling notifications to third-party tools is fairly easy via webhooks. For more information about this section read the [notifications page](notifications.md).

```yaml
notify:
  method: POST
  headers: [{ "Content-Type": "application/json" }]
  endpoint: https://usagge.hipchat.com/v2/room/3729485/notification?auth_token=mySecretToken
  content: '{"color":"green","message":"New package published: * {{ name }}*","notify":true,"message_format":"text"}'
```

> For more detailed configuration settings, please [check the source code](https://github.com/verdaccio/verdaccio/tree/master/packages/config/src/conf).

### Audit {#audit}

<small>Since: `verdaccio@3.0.0`</small>

`npm audit` is a new command released with [npm 6.x](https://github.com/npm/npm/releases/tag/v6.1.0). Verdaccio includes
a built-in middleware plugin to handle this command.

> If you have a new installation it comes by default, otherwise you need to add the following props to your config file

```yaml
middlewares:
  audit:
    enabled: true
```

### Experiments {#experiments}

This release includes a new property named `experiments` that can be placed in the `config.yaml` and is completely optional.

We want to be able to ship new things without affecting production environments. This flag allows us to add new features and get feedback from the community who decides to use them.

The features under this flag might not be stable or might be removed in future releases.

Here is one example:

```yaml
experiments:
  changePassword: false
```

> To disable the experiments warning in the console, you must comment out the whole `experiments` section.