Why am I getting a host blocked with mysqladmin flush-hosts error?

When running a new application, you may get an error similar to:

Host 172.0.0.1 is blocked because of many connection errors; unlock with ‘mysqladmin flush-hosts’

This can be resolved by changing the database host setting inside the affected script to ‘localhost’ rather than a host name or IP address.

However, you may need to raise a Support Ticket with our Customer Services team in order for the flush-hosts command to be performed.