One of North Korea’s top level DNS servers was mis-configured today (20th September 2016) accidentally allowing global DNS zone transfers. This allowed anyone who makes a zone transfer request (AXFR) to retrieve a copy of the nation’s top level DNS data.
I wouldn’t recommend going backwards on PHP versions but if you have no other choice then simply add a Debian snapshot to your repo and then install passing the version number.
Codeigniter 4 alpha has been released to the public for review so here is a quick run down on how to get started. Please note this is not even close to being production ready so please don’t create any public facing websites, this code is for review only.