您当前位置:主页 > 热门文章 >
 
Linux安装配置Varnish Web加速器
日期:2018-10-22 编辑:AG88

Linux安装配置Varnish Web加速器

Varnish是一款高性能的开源HTTP加速器,它可以来做纯粹的代理服务器,负载均衡,但varnish最主要的功能是缓存加速,也是它最出色的地方。下面介绍在Linux下如何安装和使用。

一、环境

# cat /etc/issue

CentOS release 6.3 (Final)

Kernel \r on an \m

# getconf LONG_BIT

64

二、下载

cd /usr/local/src/

wget http://repo.varnish-cache.org/source/varnish-3.0.1.tar.gz

tar xzvf varnish-3.0.1.tar.gz

三、安装

cd varnish-3.0.1

yum install -y automake autoconf libtool ncurses-devel libxslt groff pcre-devel pkgconfig

./configure --prefix=/usr/local/varnish

make

make install

四、校验安装

cd /usr/local/varnish/sbin/

./varnishd -V

五、配置

# cd /usr/local/varnish/etc/varnish/

# cp default.vcl default.vcl.bak

# > default.vcl

# cat default.vcl

# This is a basic VCL configuration file for varnish.  See the vcl(7)

# man page for details on VCL syntax and semantics.

#

# Default backend definition.  Set this to point to your content

# server.

#

 backend default {

    .host = "115.28.225.216";

    .port = "80";

    ###下面三行为新加配

    .connect_timeout = 1s;

    .first_byte_timeout = 5s;

    .between_bytes_timeout = 2s;

 }

#

# Below is a commented-out copy of the default VCL logic.  If you

# redefine any of these subroutines, the built-in logic will be

# appended to your code.

 sub vcl_recv {

    if (req.restarts == 0) {

        if (req.http.x-forwarded-for) {

            set req.http.X-Forwarded-For =

                req.http.X-Forwarded-For + ", " + client.ip;

        } else {

            set req.http.X-Forwarded-For = client.ip;

        }

    }

    if (req.request != "GET" &&

      req.request != "HEAD" &&

      req.request != "PUT" &&

      req.request != "POST" &&

      req.request != "TRACE" &&

      req.request != "OPTIONS" &&

      req.request != "DELETE") {

        /* Non-RFC2616 or CONNECT which is weird. */

        return (pipe);

    }

    if (req.request != "GET" && req.request != "HEAD") {

        /* We only deal with GET and HEAD by default */

        return (pass);

    }

    if (req.http.Authorization || req.http.Cookie) {

        /* Not cacheable by default */

        return (pass);

    }

    return (lookup);

 }

#

 sub vcl_pipe {

#    # Note that only the first request to the backend will have

#    # X-Forwarded-For set.  If you use X-Forwarded-For and want to

#    # have it set for all requests, make sure to have:

#    # set bereq.http.connection = "close";

#    # here.  It is not set by default as it might break some broken web

#    # applications, like IIS with NTLM authentication.

    return (pipe);

 }

#

 sub vcl_pass {

    return (pass);

 }

#

 sub vcl_hash {

    hash_data(req.url);

    if (req.http.host) {

        hash_data(req.http.host);

    } else {

        hash_data(server.ip);

    }

    return (hash);

 }

#

 sub vcl_hit {

    return (deliver);

 }

#

 sub vcl_miss {

    return (fetch);

 }

#

 sub vcl_fetch {

    if (beresp.ttl <= 0s ||

        beresp.http.Set-Cookie ||

        beresp.http.Vary == "*") {

                /*

                * Mark as "Hit-For-Pass" for the next 2 minutes

                */

                set beresp.ttl = 120 s;

                return (hit_for_pass);

    }

    return (deliver);

 }

#

 sub vcl_deliver {

    return (deliver);

 }

#

# sub vcl_error {

#    set obj.http.Content-Type = "text/html; charset=utf-8";

#    set obj.http.Retry-After = "5";

#    synthetic {"

# <?xml version="1.0" encoding="utf-8"?>

# <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"

#  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

# <html>

#  <head>

#    <title>"} + obj.status + " " + obj.response + {"</title>

#  </head>

#  <body>

#    <h1>Error "} + obj.status + " " + obj.response + {"</h1>

#    <p>"} + obj.response + {"</p>

#    <h3>Guru Meditation:</h3>

#    <p>XID: "} + req.xid + {"</p>

#    <hr>

#    <p>Varnish cache server</p>

#  </body>

# </html>

# "};

#    return (deliver);

# }

#

 sub vcl_init {

        return (ok);

 }

#

 sub vcl_fini {

        return (ok);

 }

六、启动与关闭varnish

/usr/local/varnish/sbin/varnishd -f /usr/local/varnish/etc/varnish/default.vcl -s malloc,1024m -T 127.0.0.1:200 -a 0.0.0.0:80

启动参数介绍:
-f /usr/local/etc/varnish/default.vcl
这个 –f 选项指定varnishd使用哪个配置文件。
-s malloc,1G
这个 –s 选项用来确定varnish使用的存储类型和存储容量,我使用的是malloc类型(malloc是一个C函数,用于分配内存空间), 1G 定义多少内存被malloced,1G = 1gigabyte。
-T 127.0.0.1:2000
Varnish有一个基于文本的管理接口,启动它的话可以在不停止varnish的情况下来管理varnish。您可以指定管理软件监听哪个接口。当然您不能让全世界的人都能访问您的varnish管理接口,因为他们可以很轻松的通过访问varnish管理接口来获得您的root访问权限。我推荐只让它监听本机端口。如果您的系统里有您不完全信任的用户,您可以通过防火墙规则来限制他访问varnish的管理端口。
-a 0.0.0.0:8080
这一句的意思是制定varnish监听所有IP发给8080端口的http请求,如果在生产环境下,您应该让varnish监听80,这也是默认的。

pkill varnishd    // 关闭Varnish

/usr/local/varnish/bin/varnishncsa -w /var/log/varnish.log &    //启动varnishncsa用来将Varnish访问日志写入日志文件;

------------------------------------------------------------

Varnish Cache 的架构笔记

CentOS 5.8下Varnish-2.1.5的安装配置

RedHat脚本改用CentOS源更新安装Nginx、PHP 5.3、Varnish

利用Varnish构建Cache服务器笔记

缓存服务Varnish安装配置

Varnish 编译安装所需准备

Linux下Varnish缓存的配置优化

Varnish基础概念详解

-----------------------------------------------------------------------------------

Varnish 的详细介绍:请点这里
Varnish 的下载地址:请点这里

本文永久更新链接地址:

http://www.bkjia.com/Linux/884117.htmlwww.bkjia.comtruehttp://www.bkjia.com/Linux/884117.htmlTechArticleLinux安装配置Varnish Web加速器 Varnish是一款高性能的开源HTTP加速器,它可以来做纯粹的代理服务器,负载均衡,但varnish最主要的功能是缓存...

本文源自: AG环亚娱乐

上一篇:CentOS下编译安装LAMP并分离为多台服务器 下一篇:HAproxy 代理技术原理探究
 
Copyright © 2005-2016 http://www.tecsquared.com AG环亚娱乐_AG直营网_环亚娱乐AG最佳线路_腾讯体育版权所有 AG环亚娱乐_AG直营网_环亚娱乐AG最佳线路_腾讯体育