nginx is a high performance web server software. It is a much more flexible and lightweight program than apache.

yum install epel-release

yum install nginx

ifconfig eth0 | grep inet | awk ‘{ print $2 }’

wget –no-cookies –no-check-certificate –header “Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie” “http://download.oracle.com/otn-pub/java/jdk/8u60-b27/jdk-8u60-linux-x64.tar.gz”
wget http://mirror.nus.edu.sg/apache/tomcat/tomcat-8/v8.0.30/bin/apache-tomcat-8.0.30.tar.gz
tar xzf jdk-8u40-linux-i586.tar.gz
mkdir /usr/java/

cd /usr/java/jdk1.8.0_40/
[root@cluster1 java]# ln -s /usr/java/jdk1.8.0_40/bin/java /usr/bin/java
[root@cluster1 java]# alternatives –install /usr/java/jdk1.8.0_40/bin/java java /usr/java/jdk1.8.0_40/bin/java 2

alternatives –install /usr/java/jdk1.8.0_40/bin/java java /usr/java/jdk1.8.0_40/bin/java 2
alternatives –config java

vi /etc/profile.d/java.sh
export JAVA_HOME=/usr/java/jdk1.8.0_25
PATH=$JAVA_HOME/bin:$PATH
export PATH=$PATH:$JAVA_HOME
export JRE_HOME=/usr/java/jdk1.8.0_25/jre
export PATH=$PATH:/usr/java/jdk1.8.0_25/bin:/usr/java/jdk1.8.0_25/jre/bin

Three, Tomcat load balancing configuration

When Nginx start loading default configuration file /etc/nginx/nginx.conf, while nginx.conf in references /etc/nginx/conf.d catalog all .conf files.

Therefore, some of their own custom configuration can be written to a separate .conf files, as long as the files are placed /etc/nginx/conf.d this directory can be, and easy maintenance.

Create tomcats.conf: vi /etc/nginx/conf.d/tomcats.conf, which reads as follows:

/usr/tomcat/apache-tomcat-8.0.30/bin/startup.sh

vi /etc/nginx/conf.d/tomcats.conf

upstream tomcats {
ip_hash;
server 192.168.1.60:8080;
server 192.168.1.62:8080;
server 192.168.0.63:8080;
}

Modify default.conf: vi /etc/nginx/conf.d/default.conf, amend as follows:
vi /etc/nginx/conf.d/default.conf
need to amend the below lines
#location / {
#   root   /usr/share/nginx/html;
#    index  index.html index.htm;
#}

# new configuration default forwards the request to tomcats. conf configuration upstream processing
location / {
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header REMOTE-HOST $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_pass http://tomcats;
}

After saving reload the configuration: nginx -s reload

Four separate static resource configuration

Modify default.conf: vi /etc/nginx/conf.d/default.conf, add the following configuration:
vi /etc/nginx/conf.d/default.conf

All js, css requests related static resource files processed by Nginx

location ~.*\.(js|css)$ {
root    /opt/static-resources;
expires     12h;
}

Request # All photos and other multimedia-related static resource files is handled by Nginx

location ~.*\.(html|jpg|jpeg|png|bmp|gif|ico|mp3|mid|wma|mp4|swf|flv|rar|zip|txt|doc|ppt|xls|pdf)$ {
root    /opt/static-resources;
expires     7d;
}

Create a Directory for the Certificate
mkdir /etc/nginx/ssl
cd /etc/nginx/ssl
openssl genrsa -des3 -out server.key 2048
openssl req -new -key server.key -out server.csr
cp server.key server.key.org
openssl rsa -in server.key.org -out server.key
openssl x509 -req -days 365 -in server.csr -signkey server.key -out server.crt

server {
listen 80;
listen 443 default ssl;
server_name cluster1.rmohan.com;
keepalive_timeout   70;
# ssl on;
ssl_certificate     /etc/nginx/ssl/server.crt;
ssl_certificate_key /etc/nginx/ssl/server.key;
ssl_protocols       TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers         HIGH:!aNULL:!MD5;
ssl_prefer_server_ciphers   on;
}

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