https://rifco.ru/blog/2014/12/04/%d0%b2%d0%be%d1%80%d0%b4%d0%bf%d1%80%d0%b5%d1%81%d1%81-%d1%81%d0%b2%d1%8f%d0%b7%d1%8c-%d1%81-mysql-%d1%87%d0%b5%d1%80%d0%b5%d0%b7-unix-socket/