esp-dns-hijack-srv

Esp32 DNS Hijack Server, packaged as ESP-IDF component.

This is simple DNS server that resolves all lookups to one IP address. Handy for use to open Captive Portal.

Demo

How to use

This directory is an ESP-IDF component. Clone it (or add it as submodule) into components directory of the project.

Example

In this example all requested domains will be forwarded to the IP address 192.168.4.1

ip4_addr_t resolve_ip;
inet_pton(AF_INET, "192.168.4.1", &resolve_ip);
if(dns_hijack_srv_start(resolve_ip) == ESP_OK) {
    ESP_LOGI(TAG, "DNS hijack server started");
} else {
    ESP_LOGE(TAG, "DNS hijack server has not started");
}