keepalived+Nginx负载均衡+双机互备.docx

Keepalived + Nginx负载均衡+双机互备安装编译环境apt-get install build-essentialzlib安装apt-get install zlib1g-dev下载源码包并解压wget /zlib/zlib-1.2.3.tar.gztar zxvf zlib-1.2.3.tar.gzmv zlib-1.2.3 /usr/src/openssl安装apt-get install libssl-dev libssl0.9.8下载源码包并解压wget /source/openssl-1.0.0d.tar.gztar zxvf openssl-1.0.0d.tar.gzmv openssl-1.0.0.d /usr/src/pcre安装wget ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.20.tar.gztar zxvf pcre-8.20.tar.gzmv pcre-8.20 /usr/src/./configure --prefix=/usr/local/pcre--enable-utf8makemake installNginx负载均衡器安装与配置（需要先安装zlib和pcre）创建用户及用户组groupadd wwwuseradd www -g www下载第三方缓存管理模块wget /files/ngx_cache_purge-1.5.tar.gztar zxvf ngx_cache_purge-1.5.tar.gzmv ngx_cache_purge-1.5 /usr/src/下载安装nginxwget /download/nginx-1.0.13.tar.gztar zxvf nginx-1.0.13.tar.gzcp –r nginx-1.0.13 /usr/srccd /usr/src/nginx-1.0.13mkdir -p /var/log/nginx/proxymkdir -p /var/tmp/nginx/clientmkdir -p /var/tmp/nginx/proxychown -R www:www /var/log/nginxchown -R www:www /var/tmp/nginx./configure --prefix=/usr/local/nginx--http-log-path=/var/log/nginx/access.log --error-log-path=/var/log/nginx/error.log--http-client-body-temp-path=/var/tmp/nginx/client/ --http-proxy-temp-path=/var/tmp/nginx/proxy/--with-zlib=/usr/src/zlib-1.2.3--with-http_stub_status_module--with-openssl=/usr/src/openssl-1.0.0d --with-pcre=/usr/src/pcre-8.20 --with-file-aio --with-http_flv_module --with-http_gzip_static_module --user=www --group=www--add-module=/usr/src/ngx_cache_purge-1.5/makemake install配置文件vim /usr/local/nginx/conf/nginx.conf#指定用户及用户组user wwwwww;#进程数， cpu核心数*1或2，可取cpu总的线程数worker_processes 2;error_log /var/log/nginx/error.log error;pid logs/nginx.pid;#文件描述符数量worker_rlimit_nofile 51200; events{#使用的网络I/O模型，Linux下推荐用epoll，FreeBSD下推荐用kqueueuse epoll;#允许的连接数 worker_connections 51200;}http{ include mime.types; default_type application/octet-stream;access_log off;server_names_hash_bucket_size 128; client_header_buffer_size 32k; large_client_header_buffers 4 32k;#开启gzip压缩 g