linux下nginx安装

1)下载nginx 

wget  http://nginx.org/download/nginx-0.8.54.tar.gz

默认会下载到当前目录下面，也就是pwd目录 

2)解压 

tar zxvf nginx-0.8.54.tar.gz

进入nginx目录  cd nginx-0.8.54 
3)

./configure

configure这一步可能会出现，找不到pcre的error 
那么如果可以连网建议用yum命令去安装依赖包。 

yum -y install gcc pcre-devel openssl openssl-devel

如果没有网络，可到CentOS 5.5 DVD下找如下包，按顺序安装 

rpm -ivh pcre-devel-6.6-2.el5_1.7.i386.rpm
rpm -ivh openssl-0.9.8e-12.el5_4.6.i386.rpm
rpm -ivh e2fsprogs-devel-1.39-23.el5.i386.rpm
rpm -ivh keyutils-libs-devel-1.2-1.el5.i386.rpm
rpm -ivh libsepol-devel-1.15.2-3.el5.i386.rpm
rpm -ivh libselinux-devel-1.33.4-5.5.el5.i386.rpm
rpm -ivh krb5-devel-1.6.1-36.el5_4.1.i386.rpm
rpm -ivh zlib-devel-1.2.3-3.i386.rpm
rpm -ivh openssl-devel-0.9.8e-12.el5_4.6.i386.rpm

安装好后再执行 ./configure 
最后会看到类似下面信息，表示编译成功 

Configuration summary
  + using system PCRE library
  + OpenSSL library is not used
  + md5: using system crypto library
  + sha1 library is not used
  + using system zlib library

4)

make

5)

make install

默认会安装到

/usr/local/nginx

目录下面 

6) 启动

/usr/local/nginx/sbin/nginx

查看是否启动成功 

[root@maomao sbin]# ps aux | grep nginx
root     10391  0.0  0.0   4008   456 ?        Ss   10:48   0:00 nginx: [b][color=red]master[/color][/b] process ./nginx
nobody   10392  0.0  0.0   4164   796 ?        S    10:48   0:00 nginx: worker process

启动成功，master是主进程，关闭的时候kill这个进程，其他子进程会自动关掉 

打开浏览器http://localhost/ 即可看到nginx的默认欢迎页 
Welcome to nginx! 

nginx默认是用80端口，我们可以在nginx安装目录下的conf/nginx.conf文件中更改。 

vim /usr/local/nginx/conf/nginx.conf

找到以下片段进行更改，然后重启 

server {
       listen       80; //端口
       server_name  localhost; //绑定域名
       location / {
           root   html; //默认目录
           index  index.html index.htm; //默认首页名称
       }
}

更改好后，重启nginx。 

kill -HUP `cat /usr/local/nginx/logs/nginx.pid`

HUP信号是平滑重启 

停止nginx 

kill  `cat /usr/local/nginx/logs/nginx.pid`