Varnish Excellent cache server

"Remove interference environment" shutdown: Native Httpd,haproxy,nginx iptables

"Varnish Excellent cache server"

Features reverse proxy, load balancing, health check

Connection is weaker than nginx,nginx varnish reverse proxy good

See

Curl-i Www.sohu.comCache-Control:no-transform, max-age=120

Installation

VARNISH-3.0.4-1.EL6.X86_64.RPMVARNISH-LIBS-3.0.4-1.EL6.X86_64.RPMRPM-IVH varnish-*

"Start Service"

Service Varnish Restart

"Port Monitoring"

[[email protected] home]# netstat -tnlp | grep  "var" tcp         0      0 0.0.0.0:6081                 0.0.0.0:*                    LISTEN       9876/varnishd       tcp         0      0 127.0.0.1:6082               0.0.0.0:*                    LISTEN       9875/varnishd       tcp         0      0 :::6081                      :::*                          LISTEN       9876/varnishd

"Use native-based memory for cache size"

Vim/etc/sysconfig/varnish

Modify

varnish_storage_size=1g## # backend STORAGE specificationvarnish_storage= "File,${varnish_storage_file},${varnish_ Storage_size} "********************* modified to **************************************************varnish_storage_size= 256m## # Backend Storage specificationvarnish_storage= "File,${varnish_storage_file},${varnish_storage_size}" Varnish_storage= "Malloc,${varnish_storage_size}" ************************************************************** ***************

"Restart Services" service varnish restart

"Native cache, background Web service"

Vim/etc/varnish/default.vcl

Modified

Backend default {. Host = "127.0.0.1"; . Port = "80";}  Backend default {. Host = "192.168.3.5"; . Port = "80";} #service Varnish Restart

"Make sure the background Web service is started"

http://172.16.0.102 failure http://172.16.0.102:6081 this is normal.

"Back two when load balancing"

Backup

Cp/etc/varnish/default.vcl/etc/varnish/default.vcl.bak

Modify

Vim/etc/varnish/default.vcl

Random access, plus weights

backend server1 {  .host =  "192.168.3.5";  .port =  "80";} backend server2 {  .host =  "192.168.3.6";  .port =  "80";} director myload random {        {                 .backend = server1;                 .weight =  3;        }        {                 .backend  = server2;                 .weight = 1;        }}sub vcl_recv {       &nbsP; set req.backend = myload;} 

"Remove interference environment" shutdown: Native Httpd,haproxy,nginx iptables

"Test OK" http://172.16.0.102:6081/

"Varnishadm Management"

Varnishadm-t 127.0.0.1:6082-s/etc/varnish/secret

Help, quite quit

"Enable log Management" is not recommended to turn on varnish log, IO operation affects disk

Service Varnishlog Restartservice VARNISHNCSA Restartcat/var/log/varnish/varnishncsa.log

Visit http://172.16.0.102:6081/Test

172.16.0.101--[30/may/2015:09:44:53 +0800] "GET http://172.16.0.102:6081/HTTP/1.1"-"" "mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) gecko/20100101 firefox/38.0 "

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Varnish Excellent cache server