yacy.net quote:

“Web Search by the people, for the people

YaCy is a free search engine that anyone can use to build a search portal for their intranet or to help search the public internet. When contributing to the world-wide peer network, the scale of YaCy is limited only by the number of users in the world and can index billions of web pages. It is fully decentralized, all users of the search engine network are equal …”

intro video on vimeo

Installation of YaCy on Debian or Ubuntu

Just add their repo to /etc/apt/sources.list and

apt-get update && apt-get install yacy

The administration pages are at http://localhost:8090/ - no nice config file..

RAM usage:

default: Max 512 MByte

works good in LAN: Max 298 MByte

edit /etc/apache2/apache2.conf and add:

SetOutputFilter proxy-html
ProxyHTMLExtended On
ProxyPass /yacy http://192.168.32.42:8090
ProxyHTMLURLMap http://192.168.32.42:8090 /yacy
<Location /yacy>
    ProxyPassReverse /
    ProxyHTMLURLMap / /yacy/
</Location>

mod_proxy setup & security