到http://nginx.org/en/download.html下载最新版本的Nginx并安装.

一 下载并安装pcre库ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/

启动nginx上时，服务无法启动，出现libpcre.so.1 not found的错误，解决方法如下：

先执行下述命令，查看

---#ldd $(which /usr/sbin/nginx)

显示如下：

    linux-vdso.so.1 =>  (0x00007fff7e9db000)
    libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fe4629d0000)
    libcrypt.so.1 => /lib64/libcrypt.so.1 (0x00007fe462799000)
    libpcre.so.1 => not found//果然没找到
    libz.so.1 => /lib64/libz.so.1 (0x00007fe462582000)
    libc.so.6 => /lib64/libc.so.6 (0x00007fe4621e1000)
    /lib64/ld-linux-x86-64.so.2 (0x00007fe462bfa000)
    libfreebl3.so => /lib64/libfreebl3.so (0x00007fe461f7e000)
    libdl.so.2 => /lib64/libdl.so.2 (0x00007fe461d7a000)

执行如下：

 ----#cd /lib64

 ----#ln -s libpcre.so.0.0.1 libpcre.so.1

再次查看一下：

 ----#ldd $(which /usr/sbin/nginx)

显示已经ok了：

    linux-vdso.so.1 =>  (0x00007fff4d7ff000)
    libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fb06f13e000)
    libcrypt.so.1 => /lib64/libcrypt.so.1 (0x00007fb06ef07000)
    libpcre.so.1 => /lib64/libpcre.so.1 (0x00007fb06ecda000)
    libz.so.1 => /lib64/libz.so.1 (0x00007fb06eac4000)
    libc.so.6 => /lib64/libc.so.6 (0x00007fb06e723000)
    /lib64/ld-linux-x86-64.so.2 (0x00007fb06f368000)
    libfreebl3.so => /lib64/libfreebl3.so (0x00007fb06e4c0000)
    libdl.so.2 => /lib64/libdl.so.2 (0x00007fb06e2bc000)

为websocket应用实现负载均衡 http://cnodejs.org/topic/4f16442ccae1f4aa270010b3 

Reverse Proxy Web Sockets with Nginx and Socket.IOhttp://www.letseehere.com/reverse-proxy-web-sockets

安装可能出现的问题

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