export declare class DomainUtils {
    static IP_REGEX: RegExp;
    static HOSTS: {
        host: string;
        ip: string;
    }[];
    static domainLookup(domain: string): Promise<{
        addr: string;
        family: number;
    }>;
    static reverse(ip: string, local?: boolean): Promise<string[]>;
    static reloadHosts(): void;
    static getHostsSync(): {
        host: string;
        ip: string;
    }[];
}