Coral CDN - Revision history

Elifarley at 05:49, 15 April 2011

2011-04-15T05:49:54Z

← Older revision		Revision as of 05:49, 15 April 2011
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	==OSE and Coral==		==OSE and Coral==

			===Full CDN Mode===
			When ''Full CDN mode'' is activated on our server, any ''non-logged-in user'' will be redirected to our '''coralized URL''' that points to the CoralCDN mirror of our site, thus offloading most of our server's work to Coral, leaving only the initial redirect command to be served by our own web server.

			Thus, our server will be able to handle a lot more requests per second, since each request will be replied with an ''HTTP redirect'' command, which takes very little CPU time and network bandwidth.


	===Forcing Coral Use===		===Forcing Coral Use===
	To force access through Coral, go to this URL:		To force access through Coral, go to this URL:
	* http://mirror.openfarmtech.org/		* http://mirror.openfarmtech.org/
	( which is just a redirect to the ''coralized URL'' http://openfarmtech.org.nyud.net/ )		( which is just a redirect to the '''coralized URL''' http://openfarmtech.org.nyud.net/ )

	===Bypassing Coral===		===Bypassing Coral===

Elifarley at 05:35, 15 April 2011

2011-04-15T05:35:36Z

← Older revision		Revision as of 05:35, 15 April 2011
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	[[wikipedia: Coral Content Distribution Network\| Coral Content Distribution Network]] is a free peer-to-peer content distribution network~~, comprised~~ of a world-wide network of web proxies and nameservers. It ~~allows~~ a ~~user~~ to ~~run~~ a ~~web site that offers high performance and meets huge demand~~.<ref>~~http~~:~~//www.coralcdn.org/~~</ref>		'''CoralCDN''' site: http://www.coralcdn.org/

			[[wikipedia: Coral Content Distribution Network\| Coral Content Distribution Network]] The Coral Content Distribution Network, sometimes called Coral Cache or Coral, is a free peer-to-peer content distribution network designed and operated by Michael Freedman. Coral uses the bandwidth of a world-wide network of web proxies and nameservers to mirror web content, often to avoid the Slashdot Effect or to reduce the general load on websites servers in general.

			==History==

			The project has been deployed since March 2004, during which it has been hosted on PlanetLab, a large-scale distributed research network of several hundred servers deployed at universities world wide. It has not, as originally intended, been deployed by third-party volunteer systems. About 300-400 PlanetLab servers are currently running CoralCDN. The source code is freely available under the terms of the GNU GPL.
			Coral Cache gained widespread recognition in the aftermath of the 2004 Indian Ocean earthquake, when it was used to allow access to otherwise inaccessible videos of the resulting tsunami.

			==Problems==

			Some web filtering software packages, such as Websense and OpenDNS, block access to the Coral Cache as it is seen as a form of proxy avoidance. Many anti-virus and Internet Security software packages, such as Trend Micro Internet Security, also block access to the Coral Cache as it is seen as a mask for dangerous URLs.

			<ref>[[wikipedia: Coral Content Distribution Network]]</ref>

	==OSE and Coral==		==OSE and Coral==

	===~~URL~~===		===Forcing Coral Use===
	To ~~completely bypass our server and~~ access ~~our site via~~ Coral, go to this URL:		To force access through Coral, go to this URL:
	* http://mirror.openfarmtech.org/		* http://mirror.openfarmtech.org/
	(which is just ~~an alias~~ to http://openfarmtech.org.nyud.net/)		( which is just a redirect to the ''coralized URL'' http://openfarmtech.org.nyud.net/ )

			===Bypassing Coral===
			If your country or proxy blocks access to coralized URLs, you should '''''bypass'' CoralCDN'''.

			* To bypass it '''for a given page''', append '''coral-no-serve''' to the query string, like this:
			** http://openfarmtech.org/wiki/Wiki_instructions?coral-no-serve
			* To bypass it '''for all pages''', simply [[Wiki instructions#Logging_In\|log in]]
			** Our server is configured to bypass CoralCDN ''for all logged-in users''.

	===OSE Configuration===		===OSE Configuration===

Elifarley: Added link to wikipedia: Coral Content Distribution Network

2011-04-13T00:55:09Z

Added link to wikipedia: Coral Content Distribution Network

← Older revision		Revision as of 00:55, 13 April 2011
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	Coral is a free peer-to-peer content distribution network, comprised of a world-wide network of web proxies and nameservers. It allows a user to run a web site that offers high performance and meets huge demand.<ref>http://www.coralcdn.org/</ref>		[[wikipedia: Coral Content Distribution Network\| Coral Content Distribution Network]] is a free peer-to-peer content distribution network, comprised of a world-wide network of web proxies and nameservers. It allows a user to run a web site that offers high performance and meets huge demand.<ref>http://www.coralcdn.org/</ref>

	==OSE and Coral==		==OSE and Coral==

Elifarley: Added link to :Category:IT Infrastructure

2011-03-17T12:31:37Z

Added link to Category:IT Infrastructure

← Older revision		Revision as of 12:31, 17 March 2011
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	==References==		==References==
	<references/>		<references/>

			[[Category:IT Infrastructure]]

Elifarley: Created page with "Coral is a free peer-to-peer content distribution network, comprised of a world-wide network of web proxies and nameservers. It allows a user to run a web site that offers high p..."

2011-03-17T11:41:06Z

Created page with "Coral is a free peer-to-peer content distribution network, comprised of a world-wide network of web proxies and nameservers. It allows a user to run a web site that offers high p..."

New page

Coral is a free peer-to-peer content distribution network, comprised of a world-wide network of web proxies and nameservers. It allows a user to run a web site that offers high performance and meets huge demand.<ref>http://www.coralcdn.org/</ref>

==OSE and Coral==

===URL===
To completely bypass our server and access our site via Coral, go to this URL:
* http://mirror.openfarmtech.org/
(which is just an alias to http://openfarmtech.org.nyud.net/)

===OSE Configuration===
This is the .htaccess configuration we have:

RewriteEngine On
RewriteRule ^wiki/(.*)$ /w/index.php?title=$1 [PT,L,QSA]
#RewriteRule ^wiki/(.*:.*)$ wiki/index.php?title=$1 [L,QSA]
RewriteRule ^wiki/(.*:.*)$ /w/index.php?title=$1 [L,QSA]
RewriteRule ^wiki/*$ /w/index.php [L,QSA,T=text/html]
RewriteRule ^index.php/(.*)$ /wiki/$1?old-url=slash [R=permanent,L,QSA]
# RewriteRule ^/*$ /w/index.php [L,QSA]

# RewriteLog "/home/marcin_ose/openfarmtech.org/rewrite.log"
# RewriteLogLevel 3

# To disable CDN, load http://openfarmtech.org/anything/really.jpg?DISABLE-CDN
RewriteCond %{QUERY_STRING} (^|&)DISABLE-CDN$
RewriteRule . - [cookie=coral-no-serve:1:.openfarmtech.org:60]

Header append X-Coral-Control "redirect-home"

RewriteCond %{REQUEST_METHOD} !=POST
RewriteCond %{HTTP_USER_AGENT} !^.*Googlebot.*$
RewriteCond %{HTTP_USER_AGENT} !^CoralWebPrx
RewriteCond %{QUERY_STRING} !(^|&)coral-no-serve$
RewriteCond %{HTTP_COOKIE} !^.*(coral-no-serve|wiki_UserID|comment_author_|wordpress_logged_in|wp-postpass_).*$
# ----
RewriteCond %{REQUEST_URI} ^(/w/skins|/w/images|/weblog/wp-content/themes)|(.*\.(css|js|png|gif|jpg|jpeg|ico|asf|asx|wax|wmv|wmx|avi|bmp|class|divx|doc|docx|exe|gz|gzip|ico|jpe|mdb|mid|midi|mov|qt|mp3|m4a|mp4|m4v|mpeg|mpg|mpe|mpp|odb|odc|odf|odg|odp|ods|odt|ogg|pdf|pot|pps|ppt|pptx|ra|ram|swf|tar|tif|tiff|wav|wma|wri|xla|xls|xlsx|xlt|xlw|zip)$) [NC]
# Comment rule above to enable FULL CDN access
RewriteCond %{QUERY_STRING} !^.*attachment_id=.*$
RewriteCond %{QUERY_STRING} !^.*title=Special:.*$
RewriteCond %{QUERY_STRING} !^.*\/Special:OpenID.*$
RewriteCond %{REQUEST_URI} !^.*\GoogleSearch.*$
# ----
RewriteRule ^(.*)$ http://openfarmtech.org.nyud.net/$1 [R,L]

RewriteCond %{REQUEST_METHOD} !=POST
RewriteCond %{HTTP_USER_AGENT} !^.*Googlebot.*$
RewriteCond %{HTTP_USER_AGENT} !^CoralWebPrx
RewriteCond %{QUERY_STRING} !(^|&)coral-no-serve$
# For things like http://openfarmtech.org/w/index.php?title=MediaWiki:Monobook.css&usemsgcache=yes&ctype=text%2Fcss&smaxage=18000&action=raw&maxage=18000
RewriteCond %{QUERY_STRING} MediaWiki:[a-z]+\.css [NC]
RewriteRule ^(.*)$ http://openfarmtech.org.nyud.net/$1 [R,L]

==References==
<references/>