Virtual Machine Maintenance Summer ‘24

River Oaks Church - Updated July 2024

1. Set timezone correctly

1.1. Run the following command to configure the timezone:

sudo dpkg-reconfigure tzdata

1.1.1. Select either America/Indiana/Indianapolis or US/Eastern.
The specific timezone doesn’t matter, as long as it is set on the VM.

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2. Update the VM's password for the primary user account

2.1. Run the following command to change the password:

passwd

2.2. Copy the old password (paste it into the terminal).
2.3. Regenerate the password in Bitwarden (edit the pencil icon -> rotate icon).
2.4. Paste the new password into the terminal twice to confirm.
2.5. Test the connection to the VM in a new terminal before closing out the original session.

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3. Fully Update Ubuntu

3.1. Run the following command to update and upgrade the system:

sudo apt update -y && sudo apt upgrade -y && sudo apt full-upgrade -y && sudo apt autoremove -y

3.2. Reload services as needed.

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4. Update Node-RED (If applicable)

4.1. Rerun the installation script. Instructions can be found here.

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5. Check VM Resources

5.1. Use the htop command to check if the VM is maxing out CPU or RAM.
5.2. Use the df -h command to check if the VM is low on storage.
- Look specifically at /dev/mapper/ubuntu--vg-ubuntu--lv (filesystem).

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6. Reboot if Necessary

6.1. Reboot the VM if it has a high uptime (greater than 200 days).