> For the complete documentation index, see [llms.txt](https://docs.hoola.vn/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hoola.vn/english/system-setting/authentication.md).

# Authentication

Go to `System Setting` ![sau đó](https://lh3.googleusercontent.com/3_l97rr0GvhSP2XV5OoCkV2ZDTIisAOczrSdzNCBxhIKWrjXjHucxNwocghoUa39gw=w36-h36)`Authentication`

![](/files/-McSwXlNgzzNlNWz0tZj)

### 1. Registration

{% content-ref url="/pages/-McT0Fg6AoQhHPLkK6OX" %}
[Registration](/english/system-setting/authentication/registration.md)
{% endcontent-ref %}

### 2. Number of devices allowed per account

{% content-ref url="/pages/-McT0GbP4Sg\_gBwWGhcM" %}
[Number of devices allowed per account](/english/system-setting/authentication/number-of-devices-allowed-per-account.md)
{% endcontent-ref %}

### 3. Login with Social Medi

{% content-ref url="/pages/-McT0GSSKiTroONT5Bzj" %}
[Login via Social Media](/english/system-setting/authentication/sign-in-via-social-media.md)
{% endcontent-ref %}

### 4. Share accounts

{% content-ref url="/pages/-McT0GDkcw18gBnyxMMF" %}
[Share accounts](/english/system-setting/authentication/share-accounts.md)
{% endcontent-ref %}

### 5. Policies and Terms of Service

{% content-ref url="/pages/-McT0LbAScdzths3z62i" %}
[Policies and Terms of Service](/english/system-setting/authentication/policies-and-terms-of-service.md)
{% endcontent-ref %}