Differences

This shows you the differences between two versions of the page.

--- helpful_ubuntu_commands [2026/08/18 06:54] – mike
+++ helpful_ubuntu_commands [2026/09/02 19:57] (current) – mike
@@ Line 82: / Line 82: @@
 ==== Ansible/Automation Related Info ====
-=== Generate password hashes (useful for Ansible playbooks amongst other things) ===
+=== Generate password hashes (useful for Ansible playbooks, Ansible Vault, amongst other things) ===
   mkpasswd --method=sha-512
@@ Line 133: / Line 133: @@
   find the existing IP and change it to the desired IP; 'wq' out of the file
   sudo netplan apply
+  Update the /etc/hosts file accordingly
 === Changing the server's IP address from DHCP to static ===
-cd into /etc/netplan and edit the file that is there.  Replace the contents with the following (supplying the specific IP address/etc where required):
+. Disable cloud-init networking to avoid overwriting the new configuration:
+  echo "network: {config: disabled}" | sudo tee /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg
+. cd into /etc/netplan and edit the file that is there.  Replace the contents with the following (supplying the specific IP address/etc where required):
   network:
@@ Line 151: / Line 157: @@
               - to: default
                 via: 192.168.1.1
+. Execute ''netplan apply'' to apply immediately or reboot to verify reboot survivability.
 === Changing the server's host name ===
   hostnamectl set-hostname [new host name]