> For the complete documentation index, see [llms.txt](https://vitrina-blogerov.gitbook.io/bloggers-showcase/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://vitrina-blogerov.gitbook.io/bloggers-showcase/product-docs/product-docs-en/possible-errors/ports-80-or-443-are-occupied.md).

# Ports 80 or 443 are occupied

The installer reports that the port is occupied, or the installation stops at the HTTP/HTTPS check.

### Symptoms

* the installation says that `80` or `443` are already in use;
* Caddy edge does not start;
* another website opens on the domain;
* the new language is not added correctly.

### Possible causes

* Nginx is already running on the server;
* Apache is installed;
* another Caddy is running;
* there is a hosting control panel;
* the old site or the old demo version is still there;
* the port is occupied by another Docker container.

### What to check

```bash
sudo ss -ltnp | grep -E ':80|:443'
```

Check the Docker containers:

```bash
sudo docker ps
```

### How to fix it

{% tabs %}
{% tab title="This is an old site" %}
Stop the old service if it is no longer needed, then repeat the installation.
{% endtab %}

{% tab title="This is Bloggers Bot Platform" %}
If another language version of the platform is already installed on the server, the shared Caddy edge can be reused. The new language version must be installed on the same domain.
{% endtab %}

{% tab title="This is someone else's service" %}
If the port is occupied by an important third-party project, do not stop it without understanding the consequences. It is better to use a separate server or a separate hosting scheme.
{% endtab %}
{% endtabs %}

{% hint style="danger" %}
Do not delete Nginx, Apache, Caddy, or Docker containers blindly. First make sure they are not serving another working project.
{% endhint %}

### When to contact support

If you do not understand which process is occupying the port, send the specialist the output of the command `ss -ltnp` and the list `docker ps`.


---

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