Configuring DNS for WordPress Media Created with Google CloudPlatform (GDP)

This post is also available in: 日本語

1 Introduction
2 Make the IP address static
3 DNS Settings
4 Change WordPress URL
5 Mail Settings
- 5.1 Register with G suite
- 5.2 MX Record Configuration
6 And finally,
- 6.1 About SSH Certification

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Introduction

This article shows you how to build wordpress media from scratch using the Google CloudPlatform (GDP). This article is divided into the first part and the second part. We will introduce the site construction using the following services.

Servers, etc.: Google Cloud Platform (GCP)
Domains: GoogleDomains (Google Domain)
CMS: WordPress

In the first part of this article, I showed you how to install WordPress on the Google CloudPlatform (GDP) to bring up the initial screen.

Please check this if you like.

Creating WordPress Media on the GoogleCloudPlatform (GDP)

We will proceed from the status of “You can display the word press page by IP address.”. Here’s how to use Google Cloud Platform (GDP) to tie together domains you’ve purchased from Google domains.

Make the IP address static

The IP address immediately after creation is assigned an ephemeral.

Ephemeral means “short-lived” and is temporary, changing with each deployment.

If the IP address changes every time you deploy, it becomes complicated, so you need to change the fixed IP address = static IP address.

Open the menu on the left side of the main Google Cloud Platform (GDP) dashboard.

Choose Networking > VPC Network > External IP addresses. Changes the ephemeral statically.

If you click Static, the following display appears:.

Give the static IP address a name of your choice and click Reserve.

If you can confirm that the type has been changed to “Static”, you are done.

DNS Settings

Now let’s move on to configuring DNS. Specifically, DNS setting is a task to associate an IP address with a domain you bought.

Memo:
DNS, or Domain Name System, is a system that manages domains and IP addresses in association with each other. An IP address such as 12.123. 123.33 is very difficult to understand as it is, but by linking it to a simple string such as xxx.com, the convenience of site access is improved.

Click CREATE ZONE.

Zone Name: Any zone name
DNS Name: Enter Domain
DNSSEC: Off

Now press Create.

DNSSEC is a feature of the domain name system that authenticates responses to domain name lookup. Prevents an attacker from tampering or polluting the response to a DNS request.

I’ll turn it off for now. (You can turn it on from the setting.)

Click Add Recordset.

Enter the following:.

Specify A for the resource record type. Enter the static IP address above for the IPv4 address.

DNS Name: You do not need to enter
Resource record: A
TTL: 300
TTL Unit: seconds
IPv4 Address: External static IP address

You can see that the A record has been added.

Note that the orange boxes will be needed later for the domain registrar (= Google Domain) input.

Memo:
The registrar is the company that registers the domain

Click Use a custom name server. I will insert a string like “ns-cloud-d1.googledomains.com” which I noted earlier. Add the “+” and add each of the four. Click Save when finished.

In the Google domain, there is a sign saying “The name server may have changed. All domain settings (Websites, mail, composite records, resource records, etc.) are currently disabled. You must restore the Google Domains name server for these settings to take effect.”, but there is no problem, so you don’t have to worry about it.

Please note that you will not be able to access the site if you return it to the GoogleDomains server.

After a while, the site display appears in the specified domain. The delay is often less than 10 minutes, but the wait can be up to 48 hours.

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Change WordPress URL

We’re almost there. After you confirm the display, change the URL setting of Word Press to the correct one.

Go to the general settings screen from Settings > General. Change “WordPress Address (URL)” and “Site Address (URL)” at the same time and press Save.

Now you can change the management screen to the specified domain.

Mail Settings

For example, there may be a need to be able to send mail using the set domain, such as handling inquiries, but I will explain how to set it up.

Register with G suite

You can register with Gsuite on the Google domain. You can also pay immediately with the credit card you paid when you purchased the domain. Gsuite requires a separate monthly fee. ※ Minimum: 640 yen ~

MX Record Configuration

To map mail to the server, you need to configure MX records in GCP.

Memo：
MX records are resource records for specifying mail exchange (mail servers, hosts that deliver mail)

See the official site for more details on MX record settings.

Open the GCP Cloud DNS.

Select the same zone as before and add a new recordset in the same flow as you added the A record.

DNS name can be blank
Resource record type: MX
TTL: 3600
TTL Unit: seconds
Configuration and mail servers: (Example )utilly.jp
add item: see below

To add an item, you need to add an MX record for your suite.

Detail is here

Just in case, please send a test mail. If it arrives safely, I can say it is reflected without any problem.

And finally,

In this article, you learned how to use Google Cloud Platform (GDP) to build WordPress to tie together domains you’ve purchased from Google domains. Google domain linking is a bit peculiar, but I hope you understand the content. If you want to know from the beginning, please refer to the previous article.