Package:Varnish
Revision as of 00:39, August 20, 2014 by Threesixes (talk | contribs) (update since package had broken previous configuration syntax, and setup.)
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Varnish
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Varnish is a webcache & http accelerator. Varnish will either serve cached content, or retireve content from the server, and cache it. Varnish will reduce I/O pressure from webservers.
Install
Emerge
Install www-servers/varnish
root # www-servers/varnish
Configuration
Configuration is controlled by /etc/varnish/default.vcl & /etc/conf.d/varnishd
/etc/varnish/default.vcl
- varnish configuration filevcl 4.0;
backend default {
.host = "127.0.0.1";
.port = "8080";
}
/etc/conf.d/varnishd
- varnish configuration fileVARNISHD="/usr/sbin/varnishd"
VARNISHADM="/usr/bin/varnishadm"
CONFIGFILE="/etc/varnish/default.vcl"
VARNISHD_OPTS="-a 127.0.0.1:80"
VARNISHD_OPTS="${VARNISHD_OPTS} -u varnish -g varnish"
Varnish will fetch data from localhost:8080 and serve accelerated proxy data on localhost:80
BootService
To start varnish immediately:
root # rc-service varnishd start
To start varnish at boot:
root # rc-update add varnishd default
Verification
To verify that your traffic is going through varnish.
user $ curl -I https://www.varnish-cache.org/