> For the complete documentation index, see [llms.txt](https://doc.i4e.com.bd/networking/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.i4e.com.bd/networking/doc/dhcp-to-dns.md).

# Create DNS records for DHCP leases

[◀ Go back to main README](/networking/master.md)

## Description

This script adds (and removes) dns records based on dhcp server leases.

## Requirements and installation

Just install the script:

```
$ScriptInstallUpdate dhcp-to-dns;
```

Then run it from dhcp server as lease script. You may want to use [lease-script](/networking/doc/lease-script.md).

A scheduler cares about cleanup:

```
/ system scheduler add interval=15m name=dhcp-to-dns on-event="/ system script run dhcp-to-dns;" start-time=startup;
```

## Configuration

On first run a disabled static dns record acting as marker (with comment "`--- dhcp-to-dns above ---`") is added. Move this entry to define where new entries are to be added.

The configuration goes to `global-config-overlay`, these are the parameters:

* `Domain`: the domain used for dns records
* `HostNameInZone`: whether or not to add the dhcp/dns server's hostname
* `PrefixInZone`: whether or not to add prefix `dhcp`
* `ServerNameInZone`: whether or not to add DHCP server name

## See also

* [Collect MAC addresses in wireless access list](/networking/doc/collect-wireless-mac.md)
* [Comment DHCP leases with info from access list](/networking/doc/dhcp-lease-comment.md)
* [Run other scripts on DHCP lease](/networking/doc/lease-script.md)

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