Differences

This shows you the differences between two versions of the page.

--- computing:migratewp [2019/02/18 05:45] – created oemb1905
+++ computing:migratewp [2022/07/31 17:42] – oemb1905
@@ Line 11: / Line 11: @@
 -------------------------------------------
-This tutorial is designed to step one through how to migrate a self-hosted Word Press site manually.  First, authenticate as root on the //old host// and backup your entire database.
+This tutorial is designed to step one through how to migrate a mysql database to another host. First, use mysqldump to dump the entire database:
   sudo -i
@@ Line 30: / Line 30: @@
   > mysqldump-all-databases.sql
-The spacing is optional and thanks to @jjscha for providing a great template to use.  This can and should be used as a backup script.  You can find the latest version [[https://codetalkers.services/oemb1905/hackingclub/blob/master/nixnscripts/backup_mysql.sh|mysql-backup.sh]].  Now that your database is secure, let's import that database into the //new host// as follows:
+Use scp to get the file to the new host:
+  sudo scp mysqldump-all-databases.sql user@newhostorip.com:
+Before your import the mysqldump databases into the new database, you need to create what I call a "surrogate" user and database to do the heavy lifting for you first.  You will also grant this surrogate user super privileges.  Make sure the name you pick is unique and was not present in the database backup and/or a restricted user name.
-  mysql -u user -h localhost -p < /path/to/mysqldump-all-databases.sql
+  CREATE DATABASE newdatabase DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci;
+  GRANT ALL ON newdatabase.* TO 'newdatabaseuser'@'localhost' IDENTIFIED BY 'temporarypassword';
+  FLUSH PRIVILEGES;
+  EXIT;
+  CREATE USER 'newdatabaseuser'@'%' IDENTIFIED BY 'temporarypassword';
+  GRANT ALL ON newdatabase.* TO 'newdatabase'@'localhost' IDENTIFIED BY 'temporarypassword';
-This will take some time.  Once it finishes, log into the mysql command mode and verify the databases made it over:
+Now, you need to create databases and grant privileges to the surrogate user for each of them.  You do this as follows:
-  mysql -u user -p
+  CREATE DATABASE restoreddb1 DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci;
+  GRANT ALL ON restoreddb1.* TO 'newdatabaseuser'@'localhost' IDENTIFIED BY 'temporarypassword';
+If there are others, then repeat the commands above for each one, replacing restoreddb1 with the name of the databases you are importing and bringing in.  Now, time to import that database into the new host:
+  mysql -u newdatabaseuser -h localhost -p --database=newdatabase < /path/to/backup-databases.sql
+Once it finishes, log into the mysql command mode and verify the original databases made it over:
+  sudo mysql -u user -p
   > SHOW DATABASES;
   > EXIT
-Run this command on both machines, and the output should be identical.  Now, it is time to migrate the website over:
+If possibly, run this command on both machines, and the output should be identical.  Now, it is time to migrate the website //files// over to the new host:
-  scp -r /var/www/website.com user@newhost.com:
+  sudo scp -r /var/www/website.com/public_html user@newhostorip.com:/var/www/newwebsite.com/
-Put the files in the appropriate locations, obviously make sure you set up TLS again if needed and check file permissions for the directories, but that should be it.  Your WP website is now on the new host.  Of course, also make appropriate DNS / port forwarding adjustments so that the new website is accessible.
+Put the files in the appropriate locations, restart the mysql service and reboot.  Lastly, once you verify the original databases made it over and the website is restored and functioning, you can delete the surrogate user and database as follows:
- --- //[[netcmnd@jonathanhaack.com|oemb1905]] 2019/02/17 22:06//
+    DROP DATABASE newdatabase;
+    DROP USER 'newdatabaseuser'@'localhost';
+ --- //[[jonathan@haacksnetworking.com|oemb1905]] 2019/12/30 02:37//

Haack's Wiki

User Tools

Site Tools

Differences

Page Tools