cd ~ 
wget http://nginx.org/keys/nginx_signing.key 
sudo apt-key add nginx_signing.key 
sudo nano /etc/apt/sources.list   # 添加以下两句 
deb http://nginx.org/packages/ubuntu/ precise nginx 
deb-src http://nginx.org/packages/ubuntu/ precise nginx 
sudo apt-get update 
sudo apt-get install nginx 

sudo add-apt-repository ppa:nginx/stable 
sudo apt-get update 
sudo apt-get install nginx 

sudo apt-get install nginx 

wget http://nginx.org/packages/mainline/ubuntu/pool/nginx/n/nginx/nginx_1.5.7-1~precise_i386.deb 
wget http://nginx.org/download/nginx-1.5.7.tar.gz
tar xzf nginx-1.5.7.tar.gz
cd nginx-1.5.7

sudo mkdir /png
sudo chown eechen:eechen /png

sudo addgroup png --system
sudo adduser png --system --disabled-login --ingroup png --no-create-home --home /nonexistent --gecos "png user" --shell /bin/false

./configure 

--prefix=/png/nginx/1.5.7 --sbin-path=/png/nginx/1.5.7/sbin/nginx --conf-path=/png/nginx/1.5.7/conf/nginx.conf --error-log-path=/png/nginx/1.5.7/var/log/error.log --http-log-path=/png/nginx/1.5.7/var/log/access.log --pid-path=/png/nginx/1.5.7/var/run/nginx.pid --lock-path=/png/nginx/1.5.7/var/run/nginx.lock --http-client-body-temp-path=/png/nginx/1.5.7/var/cache/client_temp --http-proxy-temp-path=/png/nginx/1.5.7/var/cache/proxy_temp --http-fastcgi-temp-path=/png/nginx/1.5.7/var/cache/fastcgi_temp --http-uwsgi-temp-path=/png/nginx/1.5.7/var/cache/uwsgi_temp --http-scgi-temp-path=/png/nginx/1.5.7/var/cache/scgi_temp --user=png --group=png --with-http_ssl_module --with-http_realip_module --with-http_addition_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_stub_status_module --with-mail --with-mail_ssl_module --with-file-aio --with-ipv6

sudo apt-get -y install 

build-essential autoconf libtool libxml2 libxml2-dev openssl libcurl4-openssl-dev libbz2-1.0 libbz2-dev libjpeg-dev libpng12-dev libfreetype6 libfreetype6-dev libldap-2.4-2 libldap2-dev libmcrypt4 libmcrypt-dev libmysqlclient-dev libxslt1.1 libxslt1-dev libxt-dev libpcre3-dev

time make && make install

du -sh /png/nginx/1.5.7/sbin/nginx 

5.5M /png/nginx/1.5.7/sbin/nginx 

# debug 
# CFLAGS="$CFLAGS -g" 

PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC=nginx
NAME=nginx
CONFFILE=/etc/nginx/nginx.conf
DAEMON=/usr/sbin/nginx
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/$NAME
改为
PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC=nginx
NAME=nginx
CONFFILE=/png/nginx/1.5.7/conf/nginx.conf
DAEMON=/png/nginx/1.5.7/sbin/nginx
PIDFILE=/png/nginx/1.5.7/var/run/$NAME.pid
SCRIPTNAME=/png/nginx/1.5.7/$NAME

mkdir /png/nginx/1.5.7/var/cache

sudo /png/nginx/1.5.7/nginx start

curl -I `hostname`

sudo netstat -antp|grep nginx

top -b -n1|head -n7 && top -b -n1|grep nginx 

ps aux|head -n1 && ps aux|grep nginx 

cat /proc/25047/status|grep Threads 

Threads: 1 

sudo ln -s /png/nginx/1.5.7/nginx /etc/init.d/png-nginx
sudo update-rc.d png-nginx defaults #开机自启动 
sudo update-rc.d -f png-nginx remove # 以后不想开机自启动可以这样禁止
sudo service png-nginx reload #这样就可以用service来管理Nginx服务了,比如重载配置