varnish怎么配置

本篇內(nèi)容主要講解“varnish怎么配置”，感興趣的朋友不妨來看看。本文介紹的方法操作簡單快捷，實用性強(qiáng)。下面就讓小編來帶大家學(xué)習(xí)“varnish怎么配置”吧!

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server1:172.25.254.20 varnish

server2:172.25.254.21 http

主機(jī):172.25.254.44

Varnish是一款高性能的開源HTTP加速器

在server1上:

#yum install varnish-3.0.5-1.el6.x86_64.rpm varnish-libs-3.0.5-1.el6.x86_64.rpm -y

# vim /etc/varnish/default.vcl

backend web1 {

.host = "127.0.0.1";

.port = "8080";

} #定義本機(jī)端口

sub vcl_deliver {

if (obj.hits > 0) {

set resp.http.X-Cache = "HIT from westos cache";

}

else {

set resp.http.X-Cache = "MISS from westos cache";

}

return (deliver);

} #定義是否命中

# yum install httpd -y

# cd /var/www/html

# echo server20.example.com > index.html

# vim /etc/httpd/conf/httpd.conf

# Listen 12.34.56.78:80

Listen 8080 #修改http端口，防止和varnish端口沖突

# /etc/init.d/httpd start

# netstat -antlp #查看http 8080 端口是否開啟

# vim /etc/sysconfig/varnish

VARNISH_LISTEN_PORT=80 # varnish端口

# /etc/init.d/varnish start

[root@server20 html]# iptables -L

Chain INPUT (policy ACCEPT)

target prot opt source destination

Chain FORWARD (policy ACCEPT)

target prot opt source destination

Chain OUTPUT (policy ACCEPT)

target prot opt source destination #查看本機(jī)火墻是否關(guān)閉

[root@foundation44 Desktop]# curl -I 172.25.254.20

HTTP/1.1 404 westos cache

Server: Varnish

Content-Type: text/html; charset=utf-8

Retry-After: 5

Content-Length: 398

Accept-Ranges: bytes

Date: Wed, 29 Jun 2016 10:11:45 GMT

X-Varnish: 1112141971

Age: 0

Via: 1.1 varnish

Connection: close

X-Cache: MISS from westos cache #此時未命中，說明還沒有緩存

[root@foundation44 Desktop]# curl -I 172.25.254.20

HTTP/1.1 404 westos cach

Server: Varnish

Content-Type: text/html; charset=utf-8

Retry-After: 5

Content-Length: 398

Accept-Ranges: bytes

Date: Wed, 29 Jun 2016 10:15:02 GMT

X-Varnish: 1112141972

Age: 0

Via: 1.1 varnish

Connection: close

X-Cache: HIT from westos cache #此時命中，說明已經(jīng)有緩存

# vim /etc/varnish/default.vcl

backend web2 {

.host = "172.25.254.21";

.port = "80";

}

director lb random { #把多個后端聚合在一起

{ .backend = web1;

.weight = 1;

}

{ .backend = web2;

.weight = 2;

}

sub vcl_recv {

if (req.http.host ~ "^(www.)?westos.org") {

set req.http.host = "www.westos.org";

set req.backend = lb;

return(pass); #為了方便，所以定義不緩存

} elsif (req.http.host ~ "^bbs.westos.org") {

set req.backend = web2;

} else {

error 404 "westos cache";

}

} #如果訪問其他會報錯 404

# /etc/init.d/varnish reload

在server2上進(jìn)行的操作

yum install httpd -y

# cd /var/www/html

# echo server21.example.com > index.html

# /etc/init.d/httpd start

# vim /etc/httpd/conf/httpd.conf

NameVirtualHost *:80

DocumentRoot /var/www/html

ServerName www.westos.org

serveralias westos.org

</VirtualHost>

DocumentRoot /var/www/virtualhost/bbs

ServerName bbs.westos.org

</VirtualHost>

# mkdir -p /var/www/virtualhost/bbs

# cd /var/www/virtualhost/bbs/

# echo bbs.example.com > index.html

# /etc/init.d/httpd restart

# vim /etc/httpd/conf/httpd.conf

# /etc/init.d/httpd restart

然后在主機(jī)上加上 server1上和server2上相關(guān)的解析，在主機(jī)上火狐訪問，或者用 curl -I www.westos.org

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