How to install Apache Tomcat 9 in CentOS

To install Apache Tomcat 9 in CentOS

Apache Tomcat is an open-source web server and servlet container is used to serve JAVA application. It follows Java EE specifications and provides a HTTP web server. Installation of Apache tomcat 9 in CentOS is explained in this manual.

Installation of Apache Tomcat 9

First install the java 8 package with the following command.

[root@linuxhelp Desktop]# yum install java-1.8.0
Loaded plugins: fastestmirror, langpacks
Determining fastest mirrors
 * base: centos.excellmedia.net
 * extras: centos.excellmedia.net
 * updates: centos.excellmedia.net
updates/7/x86_64/primary_db          
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Dependency Updated:
  tzdata-java.noarch 0:2016f-1.el7                                                                            
Complete!

Then run the below command to check the version of Java.

[root@linuxhelp Desktop]# java -version
openjdk version " 1.8.0_101" 
OpenJDK Runtime Environment (build 1.8.0_101-b13)
OpenJDK 64-Bit Server VM (build 25.101-b13, mixed mode)

Now run the below link in the terminal to download the latest tomcat package.

[root@linuxhelp Desktop]# wget http://www-eu.apache.org/dist/tomcat/tomcat-9/v9.0.0.M21/src/apache-tomcat-9.0.0.M21-src.tar.gz
--2016-08-23 14:34:29--  http://www-eu.apache.org/dist/tomcat/tomcat-9/v9.0.0.M9/bin/apache-tomcat-9.0.0.M9.tar.gz
Resolving www-eu.apache.org (www-eu.apache.org)... 88.198.26.2, 2a01:4f8:130:2192::2
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100%[====================================================================> ] 9,322,413    439KB/s   in 23s    

2016-08-23 14:34:52 (390 KB/s) - ‘ apache-tomcat-9.0.0.M21-src.tar.gz’  saved [9322413/9322413]

Extract the downloaded package in respective location.

[root@linuxhelp Desktop]# tar -xvf apache-tomcat-9.0.0.M21-src.tar.gz -C /opt/
apache-tomcat-9.0.0.M9/conf/
apache-tomcat-9.0.0.M9/conf/catalina.policy
apache-tomcat-9.0.0.M9/conf/catalina.properties
apache-tomcat-9.0.0.M9/conf/context.xml
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apache-tomcat-9.0.0.M9/bin/startup.sh
apache-tomcat-9.0.0.M9/bin/tool-wrapper.sh
apache-tomcat-9.0.0.M9/bin/version.sh

Next move the extracted package to the new directory.

[root@linuxhelp Desktop]# cd /opt/
[root@linuxhelp opt]# mv apache-tomcat-9.0.0.M21/ tomcat/

Here use the below command to add and execute the configuration file.

[root@linuxhelp opt]# echo " export CATALINA_HOME=' /opt/tomcat/' "  > >  ~/.bashrc
[root@linuxhelp opt]# source ~/.bashrc

Now you can start the tomacat service with the below steps.

[root@linuxhelp ~]# cd /opt/tomcat/bin/
[root@linuxhelp bin]# ./startup.sh
Using CATALINA_BASE:   /opt/tomcat/
Using CATALINA_HOME:   /opt/tomcat/
Using CATALINA_TMPDIR: /opt/tomcat//temp
Using JRE_HOME:        /usr
Using CLASSPATH:       /opt/tomcat//bin/bootstrap.jar:/opt/tomcat//bin/tomcat-juli.jar
Tomcat started.

If you want to stop the tomcat server, Run the below command to stop the tomacat service.

[root@linuxhelp ~]# cd /opt/tomcat/bin/
[root@linuxhelp bin]# ./shutdown.sh

Finally, configure the tomcat port in firewall and reload it with the below command.

[root@linuxhelp bin]# firewall-cmd --permanent --zone=public --add-port=8080/tcp
success
[root@linuxhelp bin]# firewall-cmd --reload 
Success

Open the browser and enter your server IP with port number to access the Apache tomcat.