> For the complete documentation index, see [llms.txt](https://docs.constellationnetwork.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.constellationnetwork.io/run-a-node/references/firewall-settings-table.md).

# Firewall Settings Table

<table><thead><tr><th width="109" align="center">direction</th><th width="85" align="center">port</th><th width="116" align="center">profile / layer </th><th>description</th></tr></thead><tbody><tr><td align="center">inbound</td><td align="center">9000</td><td align="center">Layer0</td><td>public API </td></tr><tr><td align="center">inbound</td><td align="center">9001</td><td align="center">Layer0</td><td>peer to peer API </td></tr><tr><td align="center">inbound</td><td align="center">9010</td><td align="center">Layer1</td><td>public API </td></tr><tr><td align="center">inbound</td><td align="center">9011</td><td align="center">Layer1</td><td>peer to peer API</td></tr><tr><td align="center">outbound</td><td align="center">all</td><td align="center"></td><td>Tune to your needs</td></tr><tr><td align="center">SSH</td><td align="center">22</td><td align="center"></td><td>Enable remote access to your VPS or server to manage your node effectively.<br><em><mark style="color:orange;">For enhanced security, consider configuring SSH to use a</mark><mark style="color:orange;"> </mark><mark style="color:orange;"><strong>custom port</strong></mark><mark style="color:orange;"> </mark><mark style="color:orange;">instead of the default port 22. This adds an extra layer of</mark><mark style="color:orange;"> </mark><mark style="color:orange;"><strong>obscurity</strong></mark><mark style="color:orange;">, reducing exposure to automated scanning and brute-force attempts.</mark></em></td></tr></tbody></table>

{% hint style="warning" %}
The public and p2p ports mentioned above are customizable if desired to fit your needs.  The default port settings are listed to adhere to the default settings used by nodectl and recommended by the protocol.
{% endhint %}


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