In this section:

To ensure the HFE nodes are running as securely as possible, you must install HFE nodes with the latest Ubuntu OS packages. The OS packages are regularly updated for security and general bug fixes. Thus, Ribbon recommends that you proactively and regularly check the HFE nodes to ensure they are running as securely as possible to avoid any undesirable behavior. This is applicable for HFE nodes running in all public cloud types.

Warning

Since upgrades can cause HFE outages, only perform them when systems are not in use.


Upgrade Ubuntu OS Packages

Use the following commands to update to the latest Ubuntu OS packages.

StepAction
1

Check for Packages to Upgrade

Login to each HFE node and issue the "update" to check if they require updating. This command will fetch latest information about the packages and their dependencies from the repositories.

sudo apt update

Note

This command indicates if there are any packages to update, and specifies the number of packages to upgrade using the following comment: # packages to be upgraded

If no packages are highlighted at this stage, the HFE nodes are up-to-date. No further action is required. 

2

Upgrade Packages

To upgrade packages on your HFE nodes, continue to run the "upgrade" command. This command downloads and installs the updates for each outdated package and dependency on your system.

(Each package requires a confirmation to install unless you include the '-y' option in the command.)

sudo apt upgrade

3

Check all Upgraded Packages

To ensure the HFE node successfully upgraded all packages, re-run the "update" command. A successful upgrade is confirmed with the message "All packages are up to date."

sudo apt update

4

Optionally Install/Upgrade Specific Packages

If you require to install/upgrade any specific packages, use the "install" command before restarting the HFE Node. Otherwise, continue to Restart HFE Node.

sudo apt install <package_name>


Restart HFE Nodes

Ribbon recommends to fully upgrade each HFE node individually to prevent a situation of having to recover two HFE nodes as opposed to a single HFE node.

For each HFE node where new packages are installed, restart the HFE node by running the following command:

sudo reboot


The HFE node upgrade procedure is now complete and running on the latest OS packages.