WP Multisite: Migrating server, IP, internal domain, DNS

Resolved mcyzyk
(@mcyzyk)

1 month ago
I have a WP Multsite:

VM Internal Name: wphost01.foo.org

IP: 128.220.1.222

DNS: MyWordpressMultisite.foo.org

I need to migrate this to a new VM on our infrastructure:

New VM Internal Name: wphost05.foo.org

IP: 128.220.2.333

And when live will need to KEEP its existing, public DNS: MyWordpressMultisite.foo.org

What I’ve tried is this:

On the NEW VM, I’ve fully set up a standalone, pristine WP instance, then promoted it to Multisite.

Using the WP All-In-One Migration plugin, I then Restored my sites/data from the old VM into this new instance.

At this point, we are ready for the DNS name Switcheroo (to use a technical term).

We switch the DNS, make corresponding change in wp-config.php and…..

It’s asking me to reinstall WP Multisite.

I feel like I’m missing one other config change, but not sure what.

Advice appreciated!

Mark
- This topic was modified 1 month ago by mcyzyk.
- This topic was modified 1 month ago by mcyzyk.

Viewing 3 replies - 1 through 3 (of 3 total)

Devin Maeztri
(@devinmaeztri)

1 month ago

Hello,

Here are some documents that might be helpful for you to check what’s missing in the process:

– https://wordpress.org/documentation/article/create-a-network/
– https://wordpress.org/documentation/article/multisite-network-administration/
– https://wordpress.org/documentation/article/migrating-multiple-blogs-into-wordpress-multisite/
– https://wordpress.org/documentation/article/wordpress-multisite-domain-mapping/
– https://developer.wordpress.org/advanced-administration/multisite/

Hope they help!

Thread Starter mcyzyk
(@mcyzyk)

4 weeks, 1 day ago

Thanks!

(But it’s a bit like having a tax question and someone throwing the United States Tax Code at you….)

I waded through. This one was useful:

https://wordpress.org/documentation/article/moving-wordpress/#moving-wordpress-multisite

Looks like there ARE references to the Domain in the DB, though apparently their locations are not predictable, leading to the use of this:

https://github.com/interconnectit/Search-Replace-DB

I think for Prudence’ Sake I’m just going to do everything at once (rather than try a DNS Switcheroo at the very end): Take snapshot on Old. change DNS on New, build fresh single WP instance, promote to Multisite, restore snapshot into it.

Thread Starter mcyzyk
(@mcyzyk)

3 weeks, 5 days ago

Just reporting back….

This:

“I think for Prudence’ Sake I’m just going to do everything at once (rather than try a DNS Switcheroo at the very end): Take snapshot on Old. change DNS on New, build fresh single WP instance, promote to Multisite, restore snapshot into it.”

That’s what I did last evening and this morning. All up and running on new RHEL9/PHP8 VM with new IP but same old DNS! Migration complete.

Viewing 3 replies - 1 through 3 (of 3 total)

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