Switches can have multiple IP addresses assigned to interfaces and VLANs. Default IP address is 192.168.1.254 if DHCP isn't available. IP addresses can be configured manually or automatically from DHCP
Requires sudo or root access for configuration. Use 'ip link' command to identify network interfaces. Netplan utility simplifies configuration through YAML files
Every internet-connected device has an IP address, which can be numeric or alphanumeric. IP addresses consist of network identifier (first half) and host identifier (second half). Dynamic IPs change periodically, while static IPs remain constant
DHCP automatically configures IP addresses for devices but can change occasionally. Static IP helps prevent conflicts and enables easy device management. Static IP is required for file sharing, printer sharing, and port forwarding
Docker automatically assigns IP addresses to containers using DHCP. Containers communicate using internal DNS through dockerd server. Docker.internal domain provides alternative host-to-container communication
Static IP ensures consistent system IP address assignment. Static IPs are useful for port forwarding and server configurations. Tutorial requires Ubuntu installation with GUI and sudo rights