Ngnix installation, semaphore, and virtual host configuration

Ngnix installation, semaphore, and virtual host configuration

Ngnix installation is simple

1. Download The ngnix compressed package from the ngnix official website.

Wget http://nginx.org/download/nginx-1.6.2.tar.gz

2. decompress the package and enter its directory.

Tar-zxf nginx-1.6.2.tar.gz

Cd nginx-1.6.2

3. Compile and install

./Configure -- prefix =/usr/local/ngnix

# An error may be reported here. Ngnix depends on the pcre Library, so install the pcre Library first.

Yum install pcre-deveyum install pcre-deve

Make & make install

The installation is successful.

4. Start

Go to cd/usr/local/ngnix and check the four directories.

... Conf configuration file

... Html webpage File

... Logs Log File

... Sbin main binary Program

Start:./sbin/ngnix

An error may be reported.

(1)

Solution:

(2)

　　

Solution: Close the software or service that uses port 80.

Ii. semaphores

Nginx uses signals to control Nginx stop and smooth restart. Nginx supports the following signals:

1) TERM, INT: Quickly close sigint sigterm: NGX_TERMINATE_SIGNAL and SIGINT

2) QUIT is easy to close (an elegant process is closed after the request ends) SIGQUIT is NGX_SHUTDOWN_SIGNAL

3) HUP restarts smoothly and reloads the configuration file SIGHUP, that is, NGX_RECONFIGURE_SIGNAL.

4) USR1 re-open the log file, which is used for log cutting. SIGUSR1 is NGX_REOPEN_SIGNAL.

5) the executable program SIGUSR2 of USR2 is NGX_CHANGEBIN_SIGNAL.

6) WINCH easily closes the working process, that is, NGX_NOACCEPT_SIGNAL.

Iii. VM Configuration

First look at the configuration file

Vim/usr/local/ngnix/conf/ngnix. conf

Next we will configure the virtual host

(1) domain name-based VM

(2) Port-based Virtual Host Configuration

(3) IP-based virtual host configuration (if a host has two NICS)

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