yum -y install bzip2-devel ncurses-devel zlib-devel libjpeg-devel libpng-devel libtiff-devel freetype-devel libXpm-devel gettext-devel
yum install -y rrdtool perl-rrdtool rrdtool-devel
缺省配置和编译是带-g选项的，这样会使可执行文件变大，去掉-g就很小了。
编辑文件： nginx/auto/cc/gcc
找到debug项，注释掉。
wget http://zlib.net/zlib-1.2.7.tar.gz
wget http://www.openssl.org/source/openssl-1.0.1c.tar.gz
wget ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.31.tar.gz
./configure --prefix=/opt/nginx --conf-path=/opt/nginx/conf/nginx.conf --pid-path=/var/run/server/nginx.pid --with-zlib=../zlib-1.2.7 --with-openssl=../openssl-1.0.1c --with-pcre=../pcre-8.31 --with-http_stub_status_module --user=www --group=www
vi /etc/security/limits.conf
文件最后加上
* soft nofile 10240
* hard nofile 10240
netstat -anpo | grep "php-fpm" | wc -l
./configure --prefix=/opt/php-production --with-config-file-path=/opt/php-production --with-iconv --with-zlib --enable-mbstring --with-mcrypt --enable-mbregex --with-curl --enable-fpm --disable-posix --disable-phar --disable-tokenizer --disable-short-tags --disable-flatfile --disable-simplexml --disable-xmlwriter --disable-xmlreader
备选参数：
--with-openssl-dir=/usr/lib/openssl --with-openssl (如果使用ssl发邮件需要开启)
--enable-sockets
pear install Mail
pear install Net_SMTP
pear install pear/Net_SMTP
pear install pear/Auth_SASL