# Do not send the system hostname to DHCP servers. # # By default NetworkManager includes the system hostname in DHCP # requests so the DHCP server can label leases or register dynamic DNS # records. Many networks do not use this information, and sending it # unnecessarily exposes device identity. # # Disabling this slightly improves privacy when joining unknown # networks, especially when MAC randomization is enabled. # # Individual connections can override this if needed: # nmcli connection modify ipv4.dhcp-send-hostname yes # nmcli connection modify ipv6.dhcp-send-hostname yes [ipv4] dhcp-send-hostname=false [ipv6] # Only applies on networks using DHCPv6. Most IPv6 networks use SLAAC # instead, in which case this setting has no effect. dhcp-send-hostname=false