# Firewall templates

> Firewall templates are reusable sets of firewall rules, so your servers can share a consistent, safe baseline.

Source: https://infranest.io/docs/firewall-templates
Last updated: 2026-09-14

---

Firewall templates let you save a set of firewall rules once and reuse them across your servers, so everything stays protected with the same consistent, safe baseline.

## Overview

- A template is a reusable set of firewall rules.
- InfraNest comes with built-in templates you can apply right away.
- You can also turn any of your own firewalls into a custom template.
- Applying a template helps bring a server or firewall in line with your standard setup.

## Use a template

1. Go to **Firewalls** in the sidebar.
2. Open the firewall you want to update, or select the server whose firewall you want to standardize.
3. Choose **Save firewall as template**, or, if you're applying an existing template, select **New firewall template** or the template you want from your saved list.
4. Decide whether to **Append** the template's rules to the existing ones or **Replace** them entirely.
5. Check the **Resulting rules** preview to confirm the changes look right.
6. Select **Apply to** to choose which firewalls or servers should receive the template.
7. Confirm with **Apply to servers**. You'll see a **Template applied** confirmation once it's done.

<!-- screenshot: firewall-templates -->

<!-- docs-screenshots:start:firewall-templates -->

![Firewall templates](/media/79032e7a-249b-40bd-b66b-3f73d089327b)

<!-- docs-screenshots:end:firewall-templates -->

## Make your own template

1. Open the firewall or server whose rules you want to reuse — this should be a known-good, already-working setup.
2. Select **Save firewall as template**.
3. Give your template a clear name so it's easy to recognize later.
4. Select **Create** (or **Save**) to store it.
5. Your new template now appears alongside the built-in ones and can be applied to any firewall or server.

## Manage templates

1. Go to **Firewalls** and open the templates area.
2. Use **Search templates…** to quickly find the one you need.
3. Select **Edit** to update a template's rules, or **Rename** to give it a new name.
4. Select **Delete** to remove a template you no longer need. You'll see a **Template deleted** confirmation.
5. Built-in templates can't be changed or removed — only templates you've created can be edited or deleted.

> [!NOTE]
> Built-in templates are read-only. If you want a variation, capture your own template from a firewall and customize it instead.

> [!TIP]
> The quickest way to standardize a rule set you already trust is to capture it directly from an existing, known-good firewall rather than building one from scratch.

## Troubleshooting

- **Could not save the template** — this means your changes weren't stored. Check your rules for errors and try **Save** again.
- If applying a template doesn't seem to take effect, check whether the firewall shows **Out of sync with the provider** — you may need to **Pull from provider** or **Review differences** first.