Rescale a server#
The Bytemark and Linode Control Panels make it easy to scale/resize a server (number of cores and GiB of RAM).
You must deploy the service to re-configure swap, Elasticsearch, PostgreSQL and/or uWSGI.
Recover a server#
If a server becomes inaccessible, including via SSH, log into the hosting provider and:
Reboot the server. This often restores access, as unsaved changes to firewall rules are reset, system resources are freed, and running processes are restarted.
Use a recovery system to restore access if the server remains inaccessible.
Lish (Linode Shell) provides console access to our Linode instances, similar to connecting via SSH.
Hetzner offers two recovery methods.
Hetzner Rescue System#
The Hetzner Rescue System boots the server using a temporary recovery image, from which we can mount the server drives to fix issues.
Select the server you want to access
Activate the rescue system:
Click the Rescue tab
Set Operating system to Linux
Set Architecture to 64 bit
Select your key for Public key (if missing, add it in Key management)
Click Activate rescue system
Reboot the server:
Click the Reset tab
Set Reset type to Press power button of server or Send CTRL+ALT+DEL to the server
It takes some time to process the instruction. If nothing happens after 5 minutes, try again using Execute an automatic hardware reset.
Connect to the server as the
rootuser using SSH
Mount the drive(s):
mount /dev/md/2 /mnt
chrootinto the operating system:
chroot-prepare /mnt chroot /mnt
Hetzner technicians attach a remote console (KVM Console) to a dedicated server. This option is slow to set up, but might be required if the issue is with the network, firewall or SSH configuration.