You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
216 lines
8.4 KiB
216 lines
8.4 KiB
# YaCy
|
|
|
|
[](https://cloud.docker.com/stack/deploy/?repo=https://github.com/yacy/yacy_search_server/tree/master/docker)
|
|
[](https://heroku.com/deploy)
|
|
|
|
## What is this?
|
|
|
|
YaCy is a search engine software. It takes a new approach to search
|
|
because it does not use a central server. Instead, its search results
|
|
come from a network of independent peers. In such a distributed network,
|
|
no single entity decides what gets listed, or in which order results appear.
|
|
|
|
The YaCy search engine runs on each user's own computer. Search terms are
|
|
hashed before they leave the user's computer. Different from conventional
|
|
search engines, YaCy is designed to protect the users' privacy.
|
|
A user's computer can create with YaCy its individual search indexes and
|
|
rankings, so that results better match what the user is looking for over time.
|
|
YaCy also makes it easy to create a customized search portal with a few clicks.
|
|
|
|
Each YaCy user is either part of a large search network (YaCy contains a
|
|
peer-to-peer network protocol to exchange search indexes with other YaCy
|
|
search engine installations) or the user runs YaCy to produce
|
|
a personal search portal that can be either public or private.
|
|
|
|
YaCy search portals can also be placed in intranet environment which makes
|
|
YaCy a replacement for commercial enterprise search solutions. A network
|
|
scanner makes it easy to discover all available http, ftp and smb servers.
|
|
|
|
To create a web index, YaCy has a web crawler for
|
|
everybody, without censorship and central data retention:
|
|
- search the web (automatically using all other YaCy peers)
|
|
- co-operative crawling; support for other crawlers
|
|
- intranet indexing and search
|
|
- set up your own search portal
|
|
- all users have equal rights
|
|
- comprehensive concept to anonymise the users' index
|
|
|
|
To be able to perform a search using the YaCy network, every user has to
|
|
set up their own node. More users are leading to higher index capacity
|
|
and better distributed indexing performance.
|
|
|
|
|
|
## License
|
|
|
|
YaCy is published under the GPL v2
|
|
The source code is inside the release package (see /source and /htroot).
|
|
|
|
|
|
## Where is the documentation?
|
|
|
|
Documentation can be found at:
|
|
- (Home Page) http://yacy.net/
|
|
- (German Forum) http://forum.yacy.de/
|
|
- (Wiki:de) http://www.yacy-websuche.de/wiki/index.php/De:Start
|
|
- (Wiki:en) http://www.yacy-websearch.net/wiki/index.php/En:Start
|
|
- (Tutorial Videos) http://yacy.net/en/Tutorials.html and http://yacy.net/de/Lehrfilme.html
|
|
|
|
Every of these locations has a (YaCy) search functionality which combines
|
|
all these locations into one search result.
|
|
|
|
|
|
## Dependencies? What other software do I need?
|
|
|
|
You need java 1.7 or later to run YaCy, nothing else.
|
|
Please download it from http://www.java.com
|
|
|
|
YaCy also runs on IcedTea7.
|
|
See http://icedtea.classpath.org
|
|
|
|
NO OTHER SOFTWARE IS REQUIRED!
|
|
(you don't need apache, tomcat or mysql or whatever)
|
|
|
|
|
|
## How do I start this software?
|
|
|
|
Startup and Shutdown of YaCy:
|
|
|
|
- on GNU/Linux and OpenBSD:
|
|
to start: execute ./startYACY.sh
|
|
to stop : execute ./stopYACY.sh
|
|
|
|
- on Windows:
|
|
to start: double-click startYACY.bat
|
|
to stop : double-click stopYACY.bat
|
|
|
|
- on Mac OS X:
|
|
please use the Mac Application and start or stop it like any
|
|
other Mac Application (doubleclick to start)
|
|
|
|
|
|
## How do I use this software, where is the administration interface?
|
|
|
|
YaCy is a build on a web server. After you started YaCy,
|
|
start your browser and open
|
|
|
|
http://localhost:8090
|
|
|
|
There you can see your personal search and administration interface.
|
|
|
|
|
|
## What if I install YaCy (headless) on a server?
|
|
|
|
You can do that but YaCy authorizes users automatically if they
|
|
access the server from the localhost. After about 10 minutes a random
|
|
password is generated and then it is not possible to log in from
|
|
a remote location. If you install YaCy on a server that is not your
|
|
workstation, then you must set an administration account immediately
|
|
after the first start-up. Open:
|
|
|
|
http://<remote-server-address>:8090/ConfigAccounts_p.html
|
|
|
|
and set an administration account.
|
|
|
|
## Can I run YaCy in a virtual machine or a container?
|
|
|
|
YaCy runs fine in virtual machines managed by software such as VirtualBox or VMware.
|
|
|
|
Container technology may be more flexible and lightweight and also works fine with YaCy.
|
|
|
|
These technologies can either be deployed locally, on remote machines you own, or in the 'cloud'. Decide what fits the most your privacy requirements.
|
|
|
|
### Docker
|
|
|
|
Deploy easily YaCy on a Docker cloud provider of your choice (can be a machine you own) with the deploy button at the top of this page.
|
|
|
|
More details for YaCy with Docker in [docker/Readme.md](docker/Readme.md).
|
|
|
|
### Heroku
|
|
|
|
Deploy easily on [Heroku](https://www.heroku.com/) PaaS (Platform as a service) provider using the deploy button at the top.
|
|
|
|
More details for YaCy on Heroku in [Heroku.md](Heroku.md).
|
|
|
|
|
|
## Port 8090 is bad, people are not allowed to access that port
|
|
|
|
You can forward port 80 to 8090 with iptables:
|
|
iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 8090
|
|
On some operation systems, you must first enable access to the ports you are using like:
|
|
iptables -I INPUT -m tcp -p tcp --dport 8090 -j ACCEPT
|
|
|
|
|
|
## How can I scale this; how much ram is needed; disk space?
|
|
|
|
YaCy can scale up to many millions of web pages in your own search index.
|
|
The default assignment of RAM is 600MB which is assigned to the java
|
|
process but not permanently used by it. The GC process will free the memory
|
|
once in a while. If you have a small index (i.e. about 100000 pages)
|
|
then you may assign _less_ memory (i.e. 200MB) but if your index scales
|
|
up to over 1 million web pages then you should start to increase the
|
|
memory assignment. Open http://localhost:8090/Performance_p.html
|
|
and set a higher/lower memory assignment.
|
|
If you have millions of web pages in your search index then you might
|
|
habe gigabytes of disk space allocated. You can reduce the disk
|
|
space i.e. setting the htcache space to a different size; to do that
|
|
open http://localhost:8090/ConfigHTCache_p.html and set a new size.
|
|
|
|
|
|
## Join the development!
|
|
|
|
YaCy was created with the help of many. About 30 programmers have helped,
|
|
a list of some of them can be seen here: http://yacy.net/en/Join.html
|
|
Please join us!
|
|
|
|
|
|
## How to get the source code and how to compile YaCy yourself?
|
|
|
|
The source code is inside every YaCy release. You can also get YaCy
|
|
from https://github.com/yacy/yacy_search_server by cloning the repository
|
|
|
|
```
|
|
git clone https://github.com/yacy/yacy_search_server
|
|
```
|
|
|
|
Please clone our code and help with development!
|
|
The code is licensed under the GPL v2.
|
|
|
|
Compiling YaCy:
|
|
- you need Java 1.7 or later and [Apache Ant](http://ant.apache.org/)
|
|
- just compile: "ant clean all" - then you can "./startYACY.sh" or "./startYACY.bat"
|
|
- create a release tarball: "ant dist"
|
|
- create a Mac OS release: "ant distMacApp" (works only on a Mac)
|
|
- create a debian release: "ant deb"
|
|
- work with eclipse: within eclipse you also need to start the ant build process
|
|
because the servlet pages are not compiled by the eclipse build process
|
|
after the dist prodecure, the release can be found in the RELEASE subdirectory
|
|
|
|
## Are there any APIs or how can I attach software at YaCy?
|
|
|
|
There are many interfaces build-in in YaCy and they are all based on http/xml and
|
|
http/json. You can discover these interfaces if you notice the orange "API" icon in
|
|
the upper right of some web pages in the YaCy web interface. Just click on it and
|
|
you will see the xml/json version of the information you just have seen at the web
|
|
page.
|
|
A different approach is the usage of the shell script provided in the /bin
|
|
subdirectory. The just call also the web interface pages. By cloning some of those
|
|
scripts you can create more shell api access methods yourself easily.
|
|
|
|
## Contact
|
|
|
|
Our primary point of contact is the german forum at http://forum.yacy.net
|
|
We encourage you to start a YaCy forum in your own language.
|
|
|
|
If you have any questions, please do not hesitate to contact the maintainer:
|
|
Send an email to Michael Christen (mc@yacy.net) with a meaningful subject
|
|
including the word 'yacy' to prevent that your email gets stuck
|
|
in my anti-spam filter.
|
|
|
|
If you like to have a customized version for special needs,
|
|
feel free to ask the author for a business proposal to customize YaCy
|
|
according to your needs. We also provide integration solutions if the
|
|
software is about to be integrated into your enterprise application.
|
|
|
|
Germany, Frankfurt a.M., 26.11.2011
|
|
Michael Peter Christen
|