Firewall, volumes and IPs

Firewall

On the VPS page, in the Firewall box, you choose who can reach the VPS from the internet. When off it lets everything through, as before. When Active it blocks everything coming in, except the rules you open:

• whatever the VPS sends out (updates, outgoing email, calls to other services) always passes, with its replies;
• the panel console always works, even if you close everything.

The first time you turn it on, the panel already opens access (SSH, or remote desktop on Windows), ping and the ports of the installed application, if any. Then add or remove rules:

• protocol: TCP, UDP, Ping or All;
• ports: one (22), several (80,443) or a range (1000-2000);
• from: empty for everyone, or your IP or network (203.0.113.7, 203.0.113.0/24) to open it only to you, for example the database or the admin panel;
• note, to remember what it is for.

The Add buttons insert the most common rules (SSH, Web, Remote desktop, Ping, Email, DNS). Click Save rules: they apply within a few seconds. If you lock yourself out by mistake, log in from the console and open the rule again.

Volumes

The extra disks of your VPSs are also volumes: you find them on the Volumes page and in the VPS Extra disks box.

• Detach: the disk is unmounted and detached from the VPS; the data stays in the volume.
• Attach: a detached volume goes to another VPS of yours in the same datacenter (you also find it on the VPS page, under "detached volumes on this node"). The panel mounts it in the folder you choose, data intact.
• Snapshots: up to 5 copies of the volume alone, to go back after a bad change to the data. To restore one, shut down the VPS or detach the volume.

A detached volume is not in the VPS backups. For a new disk or to delete one, contact support.

Moving an extra IP

If you have extra IPs, the Network box shows a two-arrow icon next to each address: it moves the IP to another VPS of yours in a few seconds, without reboots. It is handy to move a website or a mail service to a new VPS without changing address. It moves between VPSs that can use that IP, usually those in the same datacenter.