Install Nginx server program and simple environment configuration on Ubuntu _nginx

Ubuntu installs Nginx from official sources

CD ~ 
wget http://nginx.org/keys/nginx_signing.key 
sudo apt-key add nginx_signing.key 
sudo nano/etc/apt/ Sources.list   # Add the following two sentences to 
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 

Ubuntu installs Nginx from the PPA source:

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

Ubuntu installs Nginx from a regular source:

sudo apt-get install Nginx 

Compile and 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

(Note: Nginx1.5.7 is a mainline version and not a stable version)

To facilitate development and management, I created a new PNG directory under the root directory, and the directory owner is set to the current user, and Nginx is compiled under/png/nginx/1.5.7:

sudo mkdir/png
sudo chown eechen:eechen/png

Run user I defined as png:png, so I need to create a new user like this:

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

(The new user's command can refer to the preinstallation script Debian/preinst in the official Deb pack)

The compilation parameters refer to the Nginx's official Deb package (nginx-v visible).

./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
 

Note: This step is to install the dependent packages by mistake, and it is time for apt to kick back, for example, my system installs these packages:

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

After installing these packages, the next time you compile the new version of the Nginx will not have to install, and basically meet the need to compile PHP configure.
OK, configure can be compiled and installed after successful:

Time make && make install

Time is primarily used to see how time-consuming this compilation is.
After compiling, you can look at this guy's head:

Du-sh/png/nginx/1.5.7/sbin/nginx 

5.5m/png/nginx/1.5.7/sbin/nginx 

Summary of Environment Simple configuration
reduce the Nginx file size after compilation:
Edit source file NGINX-1.5.7/AUTO/CC/GCC Remove debug information (comment out):

# Debug 
# cflags= ' $CFLAGS-G ' 

The compiled main program has a size of more than 700 k, which is similar to the Nginx's official Deb package program.
In addition, some unwanted modules are removed from the Configure, and the compiled executable file is smaller.
Of course, I need a service script to manage Nginx, and it's also possible to use the service script Etc/init.d/nginx provided in the official Deb package.
I put it in/png/nginx/1.5.7/nginx, and slightly modified a few values (13 to 19 lines) defined at the beginning:

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
changed to
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

Create a cache directory before starting, or you will be prompted for an error:

Mkdir/png/nginx/1.5.7/var/cache

Start Nginx:

Sudo/png/nginx/1.5.7/nginx start

Test page:

Curl-i ' hostname '

Take a look at the port:

sudo netstat-antp|grep nginx

Check the memory it occupies:
Htop Press F4 Filter Nginx

You can also see similar content with top:

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

Mainly see res This value, resident memory (resident), excluding the physical memory of the swap space, the unit is Kb,%mem is a reference object with Res.
You can see that nginx two processes take up less than 2M of physical memory, and memory footprint is very small.
In addition, the res in top corresponds to the value of the RSS in PS aux:

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

And we can see that the Nginx worker process has only one thread:

Cat/proc/25047/status|grep Threads 

Threads:1 

25047 of them are nginx worker process PID numbers.
Make the Nginx into system service, boot from start:

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 # After you don't want to boot up you can disable
the sudo service Png-nginx reload #这样就可以用service来管理Nginx服务了 such as overloaded configuration

Finally, the Nginx main configuration file is located in/png/nginx/1.5.7/conf/nginx.conf and is configured on demand.