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前期安装： 先简单安装 后期需要考虑内容： 1、要考虑Nginx自身的灾备/集群/负载均衡 2、没有对web节点进行健康检查 说明： 1、环境准备 ngixx反向代理服务器 系统：Centos 5.4 IP：60.x.x.55 域名：www.xx.com Nginx 1.2.1： wget http://www.nginx.org/download/nginx-1.2.1.tar.gz 2: 安装步骤 安装gcc编译器及相关工具 #yum -y install gcc gcc-c++ autoconf automake make 安装相关依赖的模块 #yum -y install zlib zlib-devel openssl openssl-devel pcre pcre-devel 软件源代码包存放位置：/usr/local/src # cd /usr/local/src # wget http://www.nginx.org/download/nginx-1.2.1.tar.gz # tar -zxvf nginx-1.2.1.tar.gz // 解压包 #cd nginx-1.2.1 #./configure --prefix=/usr/local/nginx //通过编译源码的方式进行安装 //------配置完毕后如下提示-----------// Configuration summary + using system PCRE library + OpenSSL library is not used + md5: using system crypto library + sha1: using system crypto library + using system zlib library nginx path prefix: "/usr/local/nginx" nginx binary file: "/usr/local/nginx/sbin/nginx" nginx configuration prefix: "/usr/local/nginx/conf" nginx configuration file: "/usr/local/nginx/conf/nginx.conf" nginx pid file: "/usr/local/nginx/logs/nginx.pid" nginx error log file: "/usr/local/nginx/logs/error.log" nginx http access log file: "/usr/local/nginx/logs/access.log" nginx http client request body temporary files: "client_body_temp" nginx http proxy temporary files: "proxy_temp" nginx http fastcgi temporary files: "fastcgi_temp" nginx http uwsgi temporary files: "uwsgi_temp" nginx http scgi temporary files: "scgi_temp" //----------------------------------------// #make #make install 配置文件：(配置和注释收集与网络) #vi /usr/local/nginx/conf/nginx.config -----------------------------------------nginx.config---------------------------------------------------------------- #运行用户 #user nobody; #启动进程,通常设置成和cpu的数量相等 worker_processes 1; #全局错误日志及PID文件 error_log /var/log/nginx/error.log; pid /var/run/nginx.pid; #工作模式及连接数上限 events { use epoll; #epoll是多路复用IO(I/O Multiplexing)中的一种方式,但是仅用于linux2.6以上内核,可以大大提高nginx的性能 worker_connections 1024;#单个后台worker process进程的最大并发链接数 # multi_accept on; } http { #设定mime类型,类型由mime.type文件定义 include /etc/nginx/mime.types; default_type application/octet-stream; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; #设定日志格式 access_log /var/log/nginx/access.log main #sendfile 指令指定 nginx 是否调用 sendfile 函数（zero copy 方式）来输出文件，对于普通应用， #必须设为 on,如果用来进行下载等应用磁盘IO重负载应用，可设置为 off，以平衡磁盘与网络I/O处理速度，降低系统的uptime. sendfile on; #tcp_nopush on; #连接超时时间 #keepalive_timeout 0; keepalive_timeout 65; tcp_nodelay on; #开启gzip压缩 gzip on; gzip_disable "MSIE [1-6]\.(?!.*SV1)"; server { #侦听80端口 listen 80; #定义使用www.xx.com访问 server_name www.xx.com; #设定本虚拟主机的访问日志 access_log logs/www.xx.com.access.log main; #默认请求 location / { root /usr/local/nginx/html; #定义服务器的默认网站根目录位置 index index.php index.html index.htm; #定义首页索引文件的名称 } # 定义错误提示页面 error_page 500 502 503 504 /50x.html; location = /50x.html { root /usr/local/nginx/html; } } #server } #http ------------------------------------------------------------------------------------------------------------------------------------ 3、如何启动Nginx #启动nginx #/usr/local/nginx/sbin/nginx -t 显示以下信息为正确的 the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok configuration file /usr/local/nginx/conf/nginx.conf test is successful 启动成功后，查看nginx进程信息： # ps -ef | grep nginx ，看是否存在nginx的进程来确认是否成功启动。 #重启动nginx #/usr/local/nginx/sbin/nginx -s reload 测试http://www.xx.com/ 同时记得检查centos防火墙设置，是否开启了相应端口，可使用setup命令来设置防火墙、dns、网络等信息。 如果默认的配置文件未做任何改动，使用浏览器直接访问nginx server，会出现提示：Welcome to Nginx 4、优化 vim /etc/sysctl.conf 在最后添加（待详细研究） net.ipv4.tcp_max_syn_backlog = 65536 net.core.netdev_max_backlog = 32768 net.core.somaxconn = 32768 net.core.wmem_default = 8388608 net.core.rmem_default = 8388608 net.core.rmem_max = 16777216 net.core.wmem_max = 16777216 net.ipv4.tcp_timestamps = 0 net.ipv4.tcp_synack_retries = 2 net.ipv4.tcp_syn_retries = 2 net.ipv4.tcp_tw_recycle = 1 net.ipv4.tcp_tw_reuse = 1 net.ipv4.tcp_mem = 94500000 915000000 927000000 net.ipv4.tcp_max_orphans = 3276800 net.ipv4.ip_local_port_range = 1024 65535 保存退出后执行 sysctl -p (责任编辑：IT) |