Every cloud server has its own page under Servers. This article covers four things on that page: snapshots, automatic backups, the firewall, and rebuilding the server.
Snapshots: a copy you take yourself
A snapshot is a copy of the server's whole disk, taken when you click Take a snapshot. Take one before anything risky, such as an operating-system upgrade or a new PHP version. Add a short note so you can tell later what it was for.
- A snapshot is kept until you delete it. Nothing deletes it for you.
- It uses storage for as long as it exists. Its size and monthly figure appear beside it once it
has finished, which takes a few minutes.
- Restore puts the server's disk back to the moment of that snapshot. Everything written to
the disk since then is lost, and there is no undo, so take a fresh snapshot first if you might need today's state. You can only restore a snapshot taken from the same server.
Automatic backups: copies taken for you every day
Switch on Backups and a copy of the server is taken every day. Older restore points are removed automatically, and the card shows how many are kept.
- The card shows the monthly figure before you switch backups on.
- ⚠️ Switching backups off deletes the restore points that already exist. They cannot be
brought back, so take a snapshot first if you want to keep the latest one.
The firewall
The Firewall card decides which traffic may reach the server. Each rule names a direction (incoming or outgoing), a protocol, a port or range of ports, and the addresses it applies to.
- A firewall with no incoming rules blocks everything coming in, SSH included.
- Before you save, check that a rule still lets you in: keep port 22 (SSH) open to your own
address. If you lock yourself out and the server has a Console card, it still opens a terminal on the server.
- Rules are checked before anything changes. A rule we cannot apply is refused with the reason,
and the old rules stay in place.
Rebuilding (reinstalling) the server
Rebuild this server erases the disk and installs a clean operating system of your choice. The server keeps its plan. On some servers a rebuild or a restore swaps the disk in several steps and takes a few minutes. The page shows it as in progress, and you can close the page while it runs.
If a rebuild or restore cannot run at that moment, you are told so and nothing changes. Try again shortly.