25 lines
1.2 KiB
Markdown
25 lines
1.2 KiB
Markdown
Install and configure dnsmasq with support for external DNS updates.
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Leases are offered from IP ranges defined in NetBox with the role `DHCP pool`. For each range a prefix should be defined with the custom properties:
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{
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"gateway": <gateway IP address>,
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"dhcp_ranges": <list of IP ranges>,
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"dhcp_server": <server IP address>
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}
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To create a reservation for a device, ensure it has the primary IP address with the status `DHCP` inside some DHCP range. The primary MAC address of the corresponding interface should also be defined.
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Custom reservations can also be specified in the local context of the DHCP server, for example:
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{
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"reservations": [
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{ "host": "foo", "ip": "10.0.1.101", "mac": "12:23:34:45:56:67" },
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{ "host": "bar", "ip": "10.0.2.102", "mac": "ab:bc:cd:de:ef:f0" },
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…
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]
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}
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For updating DNS records, a kerberos ticket is created at first setup and then renewed on updates. The password file should contain the keys `ldap_user` and `ldap_pass` to create the initial ticket.
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The default dnsmasq leasefile implementation performs poorly with many entries on slow storage, so we replace it with an sqlite database.
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