系统：Centos 6.0
一、安装之前首先确认系统中是否已安装gcc、openssl-devel、pcre-devel、zlib-devel
#yum -y install gcc openssl-devel pcre-devel zlib-devel
二、安装pcre-devel库（使Nginx支持http rewrite的模块）
#tar zxvf pcre-8.31.tar.gz#cd pcre-8.31
#./congigure
#make
#make install
问题：
libtool: compile: unrecognized option `-DHAVE_CONFIG_H'
libtool: compile: Try `libtool --help' for more information.
make[1]: *** [pcrecpp.lo] Error 1
make[1]: Leaving directory `/home/guangbo/work/pcre-8.12'
make: *** [all] Error 2
缺少gcc-c++和libtool，也就是c++编译包
解决方法：需要先安装libtool和gcc-c++
#yum -y install libtool
#yum -y install gcc-c++
三、安装Nginx
#tar zxvf nginx-1.2.4.tar.gz
#cd nginx-1.2.4
#./configure --with-http_stub_status_module --with-http_gzip_static_module
-- prefix=/usr/local/nginx
#make
#makeinstall
注：--with-http_stub_status_module 可以用来启用Nginx的NginxStatus功能，以监控Nginx的当前状态。
--with-http_gzip_static_module 支持在线实时压缩输出数据流。
问题：
1、若在./configure后配置刚才的参数，提示一下的错误：
objs/src/http/modules/ngx_http_browser_module.o
objs/src/http/modules/ngx_http_upstream_ip_hash_module.o
objs/src/http/modules/ngx_http_upstream_least_conn_module.o
objs/src/http/modules/ngx_http_upstream_keepalive_module.o
objs/ngx_modules.o
-lpthread -lcrypt -lpcre -lcrypto -lcrypto -lz
objs/src/core/ngx_regex.o: In function `ngx_pcre_free_studies':
/share/nginx-1.2.4/src/core/ngx_regex.c:307: undefined reference to `pcre_free_study'
collect2: ld returned 1 exit status
make[1]: *** [objs/nginx] Error 1
make[1]: Leaving directory `/share/nginx-1.2.4'
make: *** [build] Error 2
解决方法：./configure --prefix=/usr/local/nginx --without-http_autoindex_module --without-http_geo_module --without-http_map_module --without-http_browser_module --with-http_stub_status_module --with-http_realip_module --with-pcre=../pcre-8.31
PS: ./configure --prefix=/usr/localnx --without-http_autoindex_module --without-http_geo_module --with-pcre=../pcre-8.31
注意：把--with-pcre=../pcre-8.31换成你的pcre解压缩包的路径
2、若在“./configure”后方加入了“--with-http_gzip_static_module”（添加gzip压缩模块）提 示以下错误：
./configure: error: the HTTP gzip module requires the zlib library.
You can either disable the module by using --without-http_gzip_module
option, or install the zlib library into the system, or build the zlib library
statically from the source with nginx by using --with-zlib=<path> option.
解决办法：安装zlib-devel包
#yum -y install zlib-devel
启动Nginx出现的问题：
# /usr/local/nginx/sbin/nginx
1、/usr/local/nginx/sbin/nginx: error while loading shared libraries: libpcre.so.1: cannot open shared object file: No such file or directory 从错误看出是缺少lib文件导致，进一步查看下 # ldd $(which /usr/local/nginx/sbin/nginx)linux-gate.so.1 => (0x0071b000)
libpthread.so.0 => /lib/libpthread.so.0 (0×00498000)
libcrypt.so.1 => /lib/libcrypt.so.1 (0×00986000)
libpcre.so.1 => not found
libcrypto.so.6 => /lib/libcrypto.so.6 (0×00196000)
libz.so.1 => /lib/libz.so.1 (0×00610000)
libc.so.6 => /lib/libc.so.6 (0x002d7000)
/lib/ld-linux.so.2 (0x006a8000)
libdl.so.2 => /lib/libdl.so.2 (0x008c3000)
可以看出 libpcre.so.1 => not found 并没有找到，进入/lib目录中手动链接下
# ln -s libpcre.so.0.0.1 libpcre.so.1
然后在启动nginx ok 了
# /usr/local/nginx/sbin/nginx
# ps -aux|grep nginx
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ
root 28254 0.0 0.0 2688 460 ? Ss 17:16 0:00 nginx: master process /usr/local/nginx/sbin/nginx
nobody 28255 0.0 0.0 2860 816 ? S 17:16 0:00 nginx: worker process
root 28265 0.0 0.0 4160 688 pts/1 R+ 17:16 0:00 grep nginx
2、Nginx启动失败，提示端口已被占用提示：
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
解决如下图所示：
先用#netstat -ntlp 查看端口被哪个服务给占用
其次用#kill -9 PID 杀掉进程号 （进程号杀不死用 killall -9）
在启用nginx
至此Nginx安装完毕。