# pfSense Services - DHCP, DNS, Dynamic DNS, and NTP

> Configuring pfSense network services - DHCP server, DNS Resolver and Forwarder, Dynamic DNS for dynamic addresses, and NTP time synchronization

Source: https://opennix.org/en/docs/pfsense/services/


pfSense includes a comprehensive set of built-in network services that handle automatic IP address allocation, domain name resolution, DNS record updates for dynamic external addresses, and system time synchronization. All services are managed through the **Services** section of the web interface and support per-interface configuration. Proper setup of these services forms the foundation for stable operation of other infrastructure components - firewall rules, VPN tunnels, and inter-segment routing all depend on reliable DHCP and DNS.

## Section Contents

- [DHCP Server](/docs/pfsense/services/pfsense-dhcp/) - DHCP server configuration, address pools, MAC-to-IP static mappings, DHCP Relay, additional options, and DNS integration
- [DNS (Resolver and Forwarder)](/docs/pfsense/services/pfsense-dns/) - Unbound DNS Resolver, DNS Forwarder (dnsmasq), host and domain overrides, DNSSEC, and DNS over TLS
- [Dynamic DNS](/docs/pfsense/services/pfsense-dynamic-dns/) - automatic DNS record updates when the WAN address changes, support for popular providers and custom APIs
- [NTP Server](/docs/pfsense/services/pfsense-ntp/) - time synchronization for network devices, server configuration, and access restrictions

## Related Sections

- [Firewall Rules](/docs/pfsense/firewall/pfsense-firewall-rules/) - controlling access to network services
- [VLAN Setup](/docs/pfsense/vlans/pfsense-vlan-setup/) - network segmentation with separate service configuration per VLAN
- [Multi-WAN Failover](/docs/pfsense/multi-wan/pfsense-multi-wan-failover/) - impact of link failover on DHCP and DNS operations