| COMMAND/TOOL | DESCRIPTION |
| netplan generate | Generates the configuration files for the network renderer based on the YAML files in /etc/netplan/. |
| netplan apply | Applies the current Netplan configuration by loading the generated configuration files and configuring the network interfaces accordingly. |
| netplan try | Tests the new Netplan configuration temporarily and waits for confirmation from the user. If no confirmation is made, the previous configuration is restored. Useful to avoid configuration errors. |
| Netplan Info | Displays information about the current Netplan version and supported renderers. |
| Netplan Help | Displays the help page with an overview of all available Netplan commands and options. |
| IP A | Displays the current network interfaces and their configuration. Useful to check the status after using Netplan. |
| IP Route | Displays the current routing tables, useful for ensuring that routes are set correctly after a Netplan configuration. |
| journalctl -u systemd-networkd | Displays the log entries of the systemd-networkd service. Useful for debugging network problems after using Netplan. |
| systemctl restart systemd-networkd | Restarts the systemd-networkd service. May be required to apply changes to the network configuration without rebooting the entire system. |
| nmcli | Command line tool for NetworkManager. Can be used to check the status of network interfaces or to make specific settings when using NetworkManager as a renderer. |
| networkctl | Displays the status of the network interfaces and allows them to be managed, especially when systemd-networkd is used as a renderer. |
| ethtool | Displays detailed information about network interfaces and allows them to be configured. Useful for checking or changing hardware properties. |
| ping | Tests the reachability of a host on the network. Helpful to check the functionality of the network configuration. |
| Traceroute | Shows the path that packets take to a destination host. Useful for diagnosing network problems. |
| dig | Performs DNS queries. Helpful to make sure the DNS configuration is correct. |
| Resolvectl | Displays the current DNS resolver status and allows you to manage DNS settings, especially in systems with systemd-resolved. |
| ifup / ifdown | Enables or disables network interfaces. Can be useful in certain scenarios, although Netplan has largely replaced these features. |
| dhclient | Requests an IP address from a DHCP server. Can be used to diagnose DHCP problems. |
| ss | Displays current network connections. Useful for monitoring network traffic. |
| tcpdump | Intercepts and displays network packets, useful for in-depth network diagnostics. |
| systemctl status systemd-networkd | Displays the current status of the systemd-networkd service. Useful for ensuring that the service is running properly. |
| systemctl status NetworkManager | Displays the current state of the NetworkManager service. Useful when using NetworkManager as a renderer. |
| netstat | Displays network connections, routing tables, and other network statistics. |
| hostnamectl | Displays the current hostname and allows you to change it. May be relevant because the hostname is part of the network configuration. |
| ip link set dev up/down | Enables or disables a specific network interface. Useful for manually controlling interfaces. |
| ip addr add/del dev | Adds or removes an IP address from an interface. Can be used to change IP addresses without rebooting the interface. |
| Bridge | Displays information about network bridges and allows them to be configured. Relevant when bridge interfaces are configured in Netplan. |
| VLAN | Displays information about VLANs and allows them to be configured. Useful when VLANs are used in network configuration. |
| IP Netns | Manage network namespaces. Can be relevant in complex network configurations. |
