Nginx load balancing and reverse proxy

Nginx

1. Preparatory work

Download Install:nginx.org download 1.10 Package

put it in the home directory . Unzip

TAR-ZXF nginx-1.10.1.tar.gz

source installation takes three steps:

Operation in the directory after Nginx decompression (make sure the port is not occupied)

1../configure

./configure--prefix=/usr/local/lnmp/nginx(default installation location) --with-http_ssl_module (auto Compile)- -with-http_stub_status_module(test module)

Hint Error: Missing installation package

Yum install pcre-devel-y yum install-y openssl-devel

2. make (compile)

3. make Install (build)

cd/usr/local/lnmp/nginx/sbin/./nginx (open nginx)

Curl-i 172.25.15.11 ( can be viewed )

or use Firefox to view can see the

2. Remove the uninstalled Nginx

Execute under /usr/local/lnmp/nginx/sbin/ ./nginx-s Stop ( stop nginx)

Rm-fr/usr/local/lnmp/nginx

Make clean in the extracted directory

or simply point: delete the home directory  Extracted Files re-unzip.

3. Hide nginx version number turn off Test mode (will cause large software)

after re-decompression Enter the extracted directory

Vim src/core/nginx.h ( hidden version number )

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Vim AUTO/CC/GCC ( turn off test mode )

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comment out The 179 line and proceed ./configure && make && made install

link nginx to the system can directly execute the nginx command

Ln-s/usr/local/lnmp/nginx/sbin/nginx/usr/local/sbin/

Which Nginx ( can be viewed to nginx)

under the system input nginx (Open)

Nginx-s Stop ( off )

Nginx-s Reload ( heavy Duty )

Nginx-t checking configuration file syntax issues

4. Dynamic modules and static modules

reconfigure an nginx

./configure--prefix=/tmp/nginx--with-ngx_mail_module=dynamic ( add dynamic Module )

One more modules under the/tmp/nginx/ (the module in the directory is a dynamic module)

dynamic modules can be called in the first row in the configuration file /tmp/nginx/conf/nginx.conf

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(Apache has long supported nginx just out)

5. Add user to Nginx process

PS aux can see the Nobody of the nginx process worker

Create an nginx User:useradd-s/sbin/nologin nginx

Modify the/usr/local/lnmp/nginx/conf/nginx.conf in the master configuration file

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Io Negative method: Useepoll

Number of concurrent Links:worker_connections 4096 X 2 ( number of CPUs )

User is 2 bound task to Two cores of CPU for Nginx thread Count

6.set the maximum number of processes for the user, number of files

Vim/etc/security/limits.conf

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maximum number of processes is 100

Shell Bomb::() {:|:&}; : ( Unlimited Call function until system resources are exhausted and then stuck, so limit the maximum number of processes for normal users )

7,nginx open 443 Port

Web testing:

Modify configuration file: /usr/local/lnmp/nginx/conf/nginx.conf

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NGINX-T ( detect syntax Errors )

Nginx-s Reload ( heavy-duty Nginx)

test on Web : server1.example.com/status Refresh

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Modify configuration file: /usr/local/lnmp/nginx/conf/nginx.conf server{} is a virtual host

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enter directive make Cert.pem ( the CA Certificate you want to generate ) under/etc/pki/tls/certs/

Enter information about the certificate. Move the certificate to /usr/local/lnmp/nginx/conf/

Nginx-t Nginx-s Reload

Access to the https://server1.example.com can be viewed.

Web page rewrite:

1. How to modify the publishing page

View the source page of Baidu then write the code to the publishing home /usr/local/lnmp/nginx/html/index.html

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2. How to redirect Web pages

Add to the virtual host under Port

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Nginx-s Reload access server1.example.com can jump.

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Nginx load balancing and reverse proxy