user890104

# This will issue a production (valid and trusted) certificate
certbot certonly --agree-tos --manual --preferred-challenge=dns --manual-auth-hook=./hook.sh --register-unsafely-without-email --manual-public-ip-logging-ok -d '*.example.com' -d 'example.com' --server https://acme-v02.api.letsencrypt.org/directory

user890104

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#ifdef _MSC_VER
#include <intrin.h> /* for rdtscp and clflush */
#pragma optimize("gt",on)
#else
#include <x86intrin.h> /* for rdtscp and clflush */
#endif