Changes between Initial Version and Version 1 of faq/shared-varnish-server

Timestamp:

Apr 1, 2012, 5:49:48 AM (13 years ago)

Author:

Ross

Comment:

--

faq/shared-varnish-server

@@ +1 @@
+ = Shared Varnish Caching =
+If you find that your site runs slowly and you've turned on all the CMS specific caching features available to you, it might be time to use our shared [https://www.varnish-cache.org/about varnish server].  Varnish helps manage higher traffic websites by creating a cache of all the previous page loads and serving them up with a minimal amount of processing.  In order to hook into our shared varnish instance, you'll need to make some changes to your DNS entries, and a support team member will need to add a file to our varnish server (currently dolores.mayfirst.org).
+
+ == Changing DNS Entries ==
+Visit the control panel and the hosting order that should use varnish caching.  Change the DNS entry for the appropriate domains.  For example, you might want 
+
+|| '''Domain Name''' || '''IP Address''' 
+|| myexample.org || 209.51.180.234
+|| www.myexample.org || 209.51.180.234
+|| myexample.com || 209.51.180.234
+|| www.myexample.com || 209.51.180.234
+|| '''example.mayfirst.org''' || '''doesn't change'''
+
+Notice that the last entry example.mayfirst.org did not change.  This domain can serve as a direct link to the server in case anything goes awry. 
+
+ == Modify Your Config Files ==
+Some CMS's require you to modify your configuration files.  You should check to make sure you have the correct configurations set.
+
+ === For Mediawiki ===
+In your LocalSettings.php, you'll need to add the following: 
+{{{
+$wgUseSquid = true;
+$wgSquidServers = array('209.51.180.234:80');
+}}}
+
+ === For Drupal ===
+ * Drupal 6 requires the [http://pressflow.org/ Pressflow] distribution.
+ * Drupal 7 should work fine using the standard MF/PL web app.
+
+ === Wordpress ===
+You shouldn't need to take any special steps for wordpress caching.  Though please make sure to turn off W3 Total Cache before using our shared varnish server.
+
+ == Support Team ==
+Our current varnish server is dolores.  You'll need to make the following configuration changes for each new hosting order. 
+
+ * Create a new vcl file for the domain, i.e. /etc/varnish/vhosts/domain-name.vcl
+ * Copy the format of a current vcl file, depending on the CMS.
+ * Add an include line in /etc/varnish/vhosts/vhosts-list.vcl for the file you created above.
+ * run /etc/init.d/varnish reload
+
+'''NOTE:''' The above instructions should ultimately become a part of puppet or red.
+