Did You know Yandex?
Yandex is a russian biggest search engine.
i dont use them , but I know well their bot. Their is a frequent guest on my servers. Yandex is well know from hard harvesting server without mercy. I dont speak russian like languages, I dont sell anythink in their market, i do not promote my websites i east side of europe - but my servers are still ddosed from this search bot ;/yandex.com | yandex.ru
So my today decision is dissallow acccess
User-agent: Yandex
Disallow: /