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DNS_Setup_for_per-cell_url.md

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DNS setup for per-cell URL

Introduction

Before executing Personium ansible playbook, you need to configure DNS setting since per-cell URL introduced in personium-core v1.7.6 requires it.

Per-cell URL

Per-cell URL is represented as:

https://{CellName}.{UnitFQDN}/

So cell URLs are different per cell and wild card DNS record (like *.{UnitFQDN}) is required in DNS setting. Per-cell URL is configured by setting configuration value of pathBasedCellUrl.enabled to false in personium-unit-config.properties and basically the value is required to set false for security reason.

DNS setup

You need to configure following DNS setting if you use per-cell URL.

FQDN Record type IP address
{Personium unit FQDN} A {Personium unit global IP address}
*.{Personium unit FQDN} A {Personium unit global IP address}

For example, if you use 192.0.2.0 as Personium unit global IP address and personium.example as Personium unit FQDN, DNS records are as followings:

FQDN Record type IP address
personium.example A 192.0.2.0
*.personium.example A 192.0.2.0