Outgrowing shared hosting is a milestone that signals your website or application has reached a level of traffic and complexity that demands dedicated resources. Migrating to a VPS gives you root access, guaranteed resources, and the flexibility to install custom software, but it also transfers server management responsibility to you.
Planning the Migration
Begin by auditing your current shared hosting environment. Document all websites, databases, email accounts, cron jobs, SSL certificates, and custom Apache configurations. This inventory ensures nothing is overlooked during the migration. Set up the VPS with the same software versions as your shared host to minimize compatibility issues.
Transfer your data using rsync for files and mysqldump for databases. Rsync's incremental transfer capability allows you to perform an initial sync days before the cutover, with a final delta sync taking only minutes. Test every website and application on the VPS using a hosts file override before changing DNS records to point to the new server.
After verifying that everything works correctly on the VPS, lower your DNS TTL values 24 hours before the migration. Perform the final data sync, update DNS records, and monitor both the old and new servers during the propagation period. Keep the old shared hosting account active for at least two weeks after migration to catch any traffic still reaching the old server.