Netplan is a Linux network configuration utility that turns declarative YAML files into settings for systemd-networkd or NetworkManager, standard on Ubuntu.
NetworkManager is the Linux networking daemon that configures wired, wireless, VPN and mobile connections automatically from stored connection profiles.
nftables is the Linux kernel packet classification framework and nft tool that replaced iptables for firewall filtering, NAT and packet mangling.
Nice is the Linux process attribute and command that adjusts how much CPU time the scheduler gives a process, from -20 (favored)…