dnsmasq 命令

常用示例

说明

dnsmasq is a lightweight DNS forwarder and DHCP server designed for small networks. It provides DNS caching, DHCP, TFTP, and PXE boot services in a single, efficient package. As a DNS server, dnsmasq forwards queries to upstream servers and caches responses, reducing latency and bandwidth. It reads /etc/hosts for local name resolution and supports custom local domains. It can also provide DNS-based ad blocking. The DHCP server provides dynamic and static address assignment with support for BOOTP, PXE, and TFTP for network booting. dnsmasq is commonly used in routers, embedded systems, and as a local development DNS/DHCP solution.

参数

-d

Debug mode, foreground, log to stderr.

-k

Keep in foreground, don't daemonize.

-C _file_

Use specified configuration file.

--test

Check configuration syntax.

-p _port_

Listen on specified DNS port.

-a _address_

Listen on specified address.

--dhcp-range= _range_

Enable DHCP with address range.

--dhcp-host= _config_

Static DHCP assignment.

-h, --no-hosts

Don't read /etc/hosts.

-H, --addn-hosts= _file_

Additional hosts file.

--local= _domain_

Answer authoritatively for domain.

--server= _address_

Upstream DNS server.

-R, --no-resolv

Don't read /etc/resolv.conf for upstream servers.

-r, --resolv-file= _file_

Read upstream nameservers from specified file instead of /etc/resolv.conf.

--cache-size= _n_

DNS cache size (default 150).

--address= _/domain/address_

Return a specific address for all hosts in a domain. Useful for blocking or redirecting.

--log-queries

Log DNS queries.