Centos7.2 JDK installation + Tomcat installation + firewall configuration

Preface
The server environment was often deployed before, but the whole process was not properly sorted, and now it is finally sorted out, hoping to provide a reference for friends who are in need of a web environment, and then leave a record for themselves.

I. Environment and software preparation
Before you build a Web project, you need to deploy the environment that you need.
1, the system selected is the Centos7.2 64-bit
2, the JDK version is jdk-7u71-linux-x64.tar.gz
3, tomcat version is nginx-1.7.6.tar.gz
4, Firewall is iptables

Second, the installation of JDK
1, the JDK decompression, and then modify the directory name

TAR-ZVXF jdk-7u71-linux-x64.tar.gz

After the decompression, modify the directory

MV Jdk1.7.0_71 jdk1.7

2. Configure Environment variables

Vi/etc/profile

Add the following to the back of the file

Export java_home=/data/jdk1.7
Classpath=.: $JAVA _home/jre/lib/rt.jar: $JAVA _home/lib/dt.jar: $JAVA _home/lib/tools.jar
Export path= $PATH: $JAVA _home/bin

Save the file and exit, and then execute

Source/etc/profile

Whether the test was successful

Java-version

Third, the installation of Tomcat
1, decompression tomcat, and then modify the directory

TAR-ZVXF apache-tomcat-7.0.55.tar.gz

After the decompression, modify the directory

MV apache-tomcat-7.0.55 TOMCAT7

2. Configure Environment variables

Vi/etc/profile

Add the following:

Export TOMCAT_HOME=/DATA/TOMCAT7

Save and exit, and then execute

Source/etc/profile

3. Start Tomcat

Cd/data/tomcat7
./startup.sh

Iv. Configuration of Firewalls
1. Close Firewall

    Service Firewalld Stop

power-on Disable Startup

    Systemctl Disable Firewalld.service

2, install iptables, open 80, 8080 ports

    Yum Install Iptables-services

Modify configuration file Iptables

     Vi/etc/sysconfig/iptables

Add the following content

-A input-p tcp-m State--state new-m TCP--dport 80-j ACCEPT
-A input-p tcp-m State--state new-m TCP--dport 8 080-j ACCEPT

Save exit, open Iptables Service

Service  iptables Start

Set startup on

   Systemctl Enable Iptables.service