You are most propably here, because you have seen accesses from an user with the useragent "yacybot" in your webserver-logs.
<h3>What is yacybot?</h3>
"yacybot" is the useragent of the software <ahref="http://yacy.net/yacy/">YaCy</a>, which is an approach to build a Peer-to-Peer based websearch-engine.
"yacybot" is the useragent of the YaCy webcrawlers which are maintained by the YaCy users and work the same way as e.g. the googlebot.
<h3>How to control yacybot?</h3>
YaCy follows the rules defined in a <b>robots.txt</b> file.<br>
If you do not wish that YaCy crawls your website, please set up such a file. It is the standard way to control all web-spiders like Google, Yahoo! and also YaCy.<br>
In case you don't know how to make such a file please read <ahref="http://www.robotstxt.org/">http://www.robotstxt.org/</a> for further instructions.<br>
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After some hours all yacybots will obey your instructions.