Managing Ubuntu Server 20.04
Anything related to managing Ubuntu Server 20.04
- Disabling IPv6 address on Ubuntu 20.04 LTS Focal Fossa step by step instructions
- Removing cloud-init from Ubuntu 20.04
Disabling IPv6 address on Ubuntu 20.04 LTS Focal Fossa step by step instructions
Objective: To disable ipv6 where it is persistent among reboots
In case you need more permanent solution to disable IPv6 even after system reboot follow the steps below:
STEP 1:
As an administrative user open up the /etc/default/grub
file using your favorite text editor and make to following changes:
FROM:
GRUB_CMDLINE_LINUX_DEFAULT=""
TO:
GRUB_CMDLINE_LINUX_DEFAULT="ipv6.disable=1"
STEP 2:
Once ready update Grub menu:
$ sudo update-grub
In case you need to re-enable the IPv6 network addresses simply remove the ipv6.disable=1
from the /etc/default/grub
file and run the update-grub
command.
Removing cloud-init from Ubuntu 20.04
Objective: To disable or remove cloud-init from your ubuntu 20.04 Server
Method 1: Disable cloud-init from file
This is the safest and the easiest method. We only need to create cloud-init.disabled
file in /etc/cloud directory and reboot the system.
-
To create empty file, issue this comand:
sudo touch /etc/cloud/cloud-init.disabled
-
and reboot:
init 6
Method 2: Remove cloud-init package and folder
This last method is not disabling cloud-init but completely removing cloud-init package from your Ubuntu Server machine.
-
Remove cloud-init package completely
sudo apt purge cloud-init -y
-
Remove /etc/cloud folder
sudo rm -rf /etc/cloud && sudo rm -rf /var/lib/cloud/
-
Reboot the system
init 6
You will see that boot time has dramatically decreased.