varish 基础

主机为1.1.1.20 我用一台主机好测试,web服务器也为这个.端口为90

修改主机名
hostname juan.lmz.com
sed -i 's@\(HOSTNAME=.*\)@\1juan.lmz.com@' /etc/sysconfig/network

hostname juan.lmz.com

修改varish的配置文件.主要修改用户LISTEN的端口和存储的方式
[root@juan html]# cat /etc/sysconfig/varnish  |grep -En 'VARNISH_LISTEN_PORT=80|VARNISH_STOTAGE'
66: VARNISH_LISTEN_PORT=80
86:VARNISH_STOTAGE="malloc,128M"

配置VCL的配置语言
vi /etc/varnish/default.vcl
backend default {
  .host = "1.1.1.20";
  .port = "90";
}
sub vcl_recv {
        if (req.url ~ "test.html$") {
        return(pass);
        }
}
sub vcl_fetch {
        if (req.request == "GET" && req.url ~ ".html$") {
        set beresp.ttl = 10s;
}
}
sub vcl_deliver {
 if (obj.hits > 0){
  set resp.http.X-Cache = "Hit Via" + " " + server.hostname;
 } else {
  set resp.http.X-Cache = "Miss from" + " " + server.hostname;
 }
}
backend default {
  .host = "1.1.1.20";        后端服务器地址
  .port = "90";              后端服务器端口
}
sub vcl_recv {
        if (req.url ~ "test.html$") {        定义匹配的URL
        return(pass);   就是不经过varnish缓存
        }
}
sub vcl_fetch {
        if (req.request == "GET" && req.url ~ ".html$") {
        set beresp.ttl = 10s;缓存10s
}
}
sub vcl_deliver {  定义响应报文,这里定义的是主机头
 if (obj.hits > 0){
  set resp.http.X-Cache = "Hit Via" + " " + server.hostname;
 } else {
  set resp.http.X-Cache = "Miss from" + " " + server.hostname;
 }
}

这个是页面文件的内容
[root@juan html]# pwd
/var/www/html
[root@juan html]# cat index.html
juan
lmz
[root@juan html]# cat test.html
juan

分别访问1.1.1.20/index.html 和1.1.1.20/test.index.html