[Script request]: Dnsmasq

[Wuest3nFuchs]

Application Name

Dnsmasq

Website

https://dnsmasq.org/doc.html

Description

The DNS subsystem provides a local DNS server for the network, with forwarding of all query types to upstream recursive DNS servers and caching of common record types (A, AAAA, CNAME and PTR, also DNSKEY and DS when DNSSEC is enabled).
Local DNS names can be defined by reading /etc/hosts, by importing names from the DHCP subsystem, or by configuration of a wide range of useful record types.
Upstream servers can be configured in a variety of convenient ways, including dynamic configuration as these change on moving upstream network.
Authoritative DNS mode allows local DNS names may be exported to zone in the global DNS. Dnsmasq acts as authoritative server for this zone, and also provides zone transfer to secondaries for the zone, if required.
DNSSEC validation may be performed on DNS replies from upstream nameservers, providing security against spoofing and cache poisoning.
Specified sub-domains can be directed to their own upstream DNS servers, making VPN configuration easy.
Internationalised domain names are supported.

The DHCP subsystem supports DHCPv4, DHCPv6, BOOTP and PXE.
Both static and dynamic DHCP leases are supported, along with stateless mode in DHCPv6.
The PXE system is a full PXE server, supporting netboot menus and multiple architecture support. It includes proxy-mode, where the PXE system co-operates with another DHCP server.
There is a built in read-only TFTP server to support netboot.
Machines which are configured by DHCP have their names automatically included in the DNS and the names can specified by each machine or centrally by associating a name with a MAC address or UID in the dnsmasq configuration file.

The Router Advertisement subsystem provides basic autoconfiguration for IPv6 hosts. It can be used stand-alone or in conjunction with DHCPv6.
The M and O bits are configurable, to control hosts' use of DHCPv6.
Router advertisements can include the RDNSS option.
There is a mode which uses name information from DHCPv4 configuration to provide DNS entries for autoconfigured IPv6 addresses which would otherwise be anonymous.

Due Diligence

• I have searched existing scripts and found no duplicates.
• I have searched existing discussions and found no duplicate requests.