一. varnish1.安裝pcre庫，兼容正則表達(dá)式# tar -zxvf pcre-8.10.tar.gz# cd pcre-8.10# ./configure --prefix=/usr/local/pcre# make && make install2.配置安裝varnish# tar -zxvf varnish-3.0.2.tar.gz# cd varnish-3.0.2# export PKG_CONFIG_PATH=/usr/local/pcre/lib/pkgconfig/# ./configure --prefix=/usr/local/varnish# make && make install3.修改varnish配置文件/usr/local/varnish/etc/varnish/default.vcl# mv default.vcl default.vcl.bak# vi cq.vclbackend cqserver {.host = "127.0.0.1";.port = "8087";.connect_timeout = 20s;}acl purge {"localhost";"127.0.0.1";"192.168.1.0"/24;}sub vcl_recv {if(req.request == "PURGE") {if(!client.ip ~ purge) {error 405 "Not allowed.";}return(lookup);}if(req.http.host ~ "^www.baidu.com") {setreq.backend = cqserver;if(req.request != "GET"&& req.request != "HEAD") {return(pipe);}else{return(lookup);}}else{error 404 "caoqing Cache Server";return(lookup);}}sub vcl_hit {if(req.request == "PURGE") {setobj.ttl = 0s;error 200 "Purged.";}}sub vcl_miss {if(req.request == "PURGE") {error 404 "Not in cache.";}}(1)Varnish通過反向代理請求后端IP為127.0.0.1，端口為8087的web服務(wù)器,即nginx服務(wù)器監(jiān)聽端口；(2)Varnish允許localhost、127.0.0.1、192.168.1.*三個(gè)來源IP通過PURGE方法清除緩存；(3)Varnish對(duì)域名為www.baidu.com的請求進(jìn)行處理，非www.baidu.com域名的請求則返回"caoqing Cache Server"；(4)Varnish對(duì)HTTP協(xié)議中的GET、HEAD請求進(jìn)行緩存，對(duì)POST請求透過，讓其直接訪問后端Web服務(wù)器。4.啟動(dòng)varnish# cd /usr/local/varnish/sbin/# ./varnishd -f /usr/local/varnish/etc/varnish/cq.vcl -s file,/var/varnish_cache,1G -T 127.0.0.1:2000 -a 0.0.0.0:80二. nginx1.安裝nginx# rpm -ivh zlib-devel-1.2.3-4.el5.i386.rpm# tar zxvf nginx-1.4.1.tar.gz# cd nginx-1.4.1# ./configure --prefix=/usr/local/nginx --with-openssl=/usr/lib --with-pcre=/root/tool/pcre-8.10 --with-http_stub_status_module# make && make install2.啟動(dòng)nginx# cd /usr/local/nginx/sbin# ./nginx3.修改ngnix配置文件測試配置文件/usr/local/nginx/sbin/./nginx-t# cd /usr/local/nginx/conf# vi nginx.conf#使用的用戶和組user root root;#制定工作衍生進(jìn)程數(shù)（一般為CPU總核數(shù)兩倍）worker_processes 8;#制定文件描述符數(shù)量worker_rlimit_nofile 51200;#指定錯(cuò)誤日志存放路徑error_log logs/error.log#指定pid存放路徑pid logs/nginx.pid;event{ #使用網(wǎng)絡(luò)I/O模型 use epoll;#允許的連接數(shù) worker_connections 65535;}http {#訪問日志存放路徑 access_log logs/access.log;#開啟gzip壓縮 gzip on; gzip_min_length 1000; gzip_proxied expired no-cache no-store private auth; gzip_types text/plaintext/csstext/xmltext/javascriptapplication/x-javascriptapplication/xmlapplication/rss+xml application/xhtml+xml application/atom_xml; gzip_disable "MSIE [1-6].(?!.*SV1)";#限定PHP-CGI的連接、發(fā)送和讀取的時(shí)間為300s fastcgi_connect_timeout 300s; fastcgi_send_timeout 300s; fastcgi_read_timeout 300s;#虛擬主機(jī)配置server {#監(jiān)聽端口 listen 8087;#主機(jī)名稱 server_name 127.0.0.1;#google提供的DNS服務(wù) resolver 8.8.8.8 location / {#nginx作為HTTP代理服務(wù)器 proxy_pass http://$http_host$request_uri; proxy_set_header Accept-Encoding ''; proxy_redirect off; }}}三. 排錯(cuò)優(yōu)化1)修改環(huán)境變量vi~/.bashrcPATH=$PATH:/usr/local/nginx/sbin:/usr/local/varnish/sbin：/usr/local/varnish/binexportPATH2)nginx啟動(dòng)與關(guān)閉參數(shù)：-v：查看版本-V：查看配置模塊-t：查看配置文件是否正確-c：制定其他配置文件pkill -9 nginx3)varnish啟動(dòng)與關(guān)閉參數(shù):-u：以什么用戶運(yùn)行-g：以什么組運(yùn)行-f：varnish配置文件-a：綁定IP和端口-s：varnish緩存位置和大小-w：最小，最大線程和超時(shí)時(shí)間-T：varnish管理端口，主要用來清除緩存pkill varnishdvarnish服務(wù)動(dòng)態(tài)加載配置文件#varnishadm -T 127.0.0.1:2000vcl.load vcl-name_vcl "配置文件路徑"# vcl-name 這里可以任意取名vcl.use vcl-namevcl.show vcl-name #顯示vcl-name配置文件內(nèi)容# varnishncsa -w /usr/local/varnish/logs/varnish.log將輸出日志寫入到制定日志文件。4)修改windows客戶端C:\Windows\System32\drivers\etc\hosts192.168.1.202 www.baidu.com聯(lián)系客服
