Linux(CentOS)下,下载安装Nginx并配置

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1、准备工作
选首先安装这几个软件:GCC,PCRE(Perl Compatible Regular Expression),zlib,OpenSSL。
Nginx是C写的,需要用GCC编译;Nginx的Rewrite和HTTP模块会用到PCRE;Nginx中的Gzip用到zlib;
用命令“# gcc”,查看gcc是否安装;如果出现“gcc: no input files”信息,说明已经安装好了。
否则,就需要用命令“# yum install gcc”,进行安装了!一路可能需要多次输入y,进行确认。
安装好后,可以再用命令“#gcc”测试,或者用命令“# gcc -v”查看其版本号。
同样方法,用如下命令安装PCRE,zlib,OpenSSL(其中devel,是develop开发包的意思):
# yum install -y pcre pcre-devel# yum install -y zlib zlib-devel# yum install -y openssl openssl-devel

2、下载并安装
创建目录(nginx-src)并进去;然后,从官方地址(http://nginx.org/)下载,解压,配置,编译,安装:
# mkdir nginx-src && cd nginx-src# wget http://nginx.org/download/nginx-1.7.3.tar.gz# tar xzf nginx-1.7.3.tar.gz # cd nginx-1.7.3# ./configure# make# make install# whereis nginxnginx: /usr/local/nginx
默认的安装路径为:/usr/local/nginx;跳转到其目录下sbin路径下,便可以启动或停止它了。
# ./nginx -hnginx version: nginx/1.7.3Usage: nginx [-?hvVtq] [-s signal] [-c filename] [-p prefix] [-g directives]Options:  -?,-h         : this help  -v            : show version and exit  -V            : show version and configure options then exit  -t            : test configuration and exit  -q            : suppress non-error messages during configuration testing  -s signal     : send signal to a master process: stop, quit, reopen, reload  -p prefix     : set prefix path (default: /usr/local/nginx/)  -c filename   : set configuration file (default: conf/nginx.conf)  -g directives : set global directives out of configuration file
启动:nginx
停止:nginx -s stop

3、添加到系统服务
使用命令“# vi /etc/init.d/nginx”,打开编辑器,输入如下内容:
#!/bin/sh# chkconfig: 2345 85 15# Startup script for the nginx Web Server# description: nginx is a World Wide Web server. # It is used to serve HTML files and CGI.# processname: nginx# pidfile: /usr/local/nginx/logs/nginx.pid# config: /usr/local/nginx/conf/nginx.confPATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/binDESC="nginx deamon"NAME=nginxDAEMON=/usr/local/nginx/sbin/$NAMESCRIPTNAME=/etc/init.d/$NAMEtest -x $DAEMON || exit 0d_start(){  $DAEMON || echo -n "already running"}d_stop(){  $DAEMON -s quit || echo -n "not running"}d_reload(){  $DAEMON -s reload || echo -n "can not reload"}case "$1" instart)  echo -n "Starting $DESC: $NAME"  d_start  echo ".";;stop)  echo -n "Stopping $DESC: $NAME"  d_stop  echo ".";;reload)  echo -n "Reloading $DESC conf..."  d_reload  echo "reload .";;restart)  echo -n "Restarting $DESC: $NAME"  d_stop  sleep 2  d_start  echo ".";;*)  echo "Usage: $ScRIPTNAME {start|stop|reload|restart}" >&2  exit 3;;esacexit 0
保存退出后,再使用下面的命令,使其可执行;然后,添加配置并查看。
可用chkconfig修改其值,也可用ntsysv工具改变是否自启动。
# chmod +x /etc/init.d/nginx# chkconfig --add nginx# chkconfig nginx on/off# chkconfig --list nginxnginx 0:off 1:off 2:on 3:on 4:on 5:on 6:off
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