How To Install Apache Tomcat 9.0 Ubuntu 16.04

The Apache Tomcat^® software is an opened upwards source implementation of the Java Servlet, JavaServer Pages, Java Expression Language in addition to Java WebSocket technologies.


Step ane - Install Tomcat from binary 

Download Latest JAVA version from Official Website.

root@U16: # wget http://apache.mirror.iweb.ca/tomcat/tomcat-9/v9.0.0.M9/bin/apache-tomcat-9.0.0.M9.tar.gz

root@U16: # wget http://apache.mirror.iweb.ca/tomcat/tomcat-9/v9.0.0.M9/bin/apache-tomcat-9.0.0.M9.tar.gz --2016-08-01 02:42:30--  http://apache.mirror.iweb.ca/tomcat/tomcat-9/v9.0.0.M9/bin/apache-tomcat-9.0.0.M9.tar.gz Resolving apache.mirror.iweb.ca (apache.mirror.iweb.ca)... 192.175.120.173, 2607:f748:10:12:a9a:c1:1e:1 Connecting to apache.mirror.iweb.ca (apache.mirror.iweb.ca)|192.175.120.173|:80... connected. HTTP asking sent, awaiting response... 200 OK Length: 9322413 (8.9M) [application/x-gzip] Saving to: ‘apache-tomcat-9.0.0.M9.tar.gz’  apache-tomcat-9.0.0.M9.tar.gz              100%[=======================================>]   8.89M   402KB/s    inwards 38s  2016-08-01 02:43:09 (242 KB/s) - ‘apache-tomcat-9.0.0.M9.tar.gz’ saved [9322413/9322413] 

Step ii - Extract apache-tomcat-9.0.0.M9.tar.gz  file 

root@U16: # tar -xzvf apache-tomcat-9.0.0.M9.tar.gz

root@U16: # tar -xzvf apache-tomcat-9.0.0.M9.tar.gz

Step three - Move file to a proper location 

root@U16: # mv apache-tomcat-9.0.0.M9 /opt/tomcat

root@U16: # mv apache-tomcat-9.0.0.M9 /opt/tomcat

Step four - Install JAVA

Java is required to run Tomcat, let's cheque JAVA if already exist.

root@U16: # java -version openjdk version "1.8.0_91" OpenJDK Runtime Environment (build 1.8.0_91-8u91-b14-0ubuntu4 16.04.1-b14) OpenJDK 64-Bit Server VM (build 25.91-b14, mixed mode)

In My Ubuntu machine JAVA 8 is already installed,  If JAVA does't be Install it using command apt install default-jdk.

root@U16: # apt install default-jdk

Step v - Start TOMCAT 

Ater JAVA installation, Let's inaugural of all TOMCAT.

Go to Tomcat folder

root@U16: # cd /opt/tomcat/bin/

To Start Tomcat run command ./startup.sh

root@U16:/opt/tomcat/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. root@U16:/opt/tomcat/bin#

JAVA  has been started successfully, Let's cheque using Server IP in addition to Port 8080.

http://10.0.0.161:8080/

6 - Optional   We tin modify the default Tomcat port from server.xml file.

6a -Fisrt Stop Tomcat Server -  root@U16:/opt/tomcat/bin# ./shutdown.sh

root@U16:/opt/tomcat/bin# ./shutdown.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 

6b - Go to Conf Folder -

root@U16: # cd /opt/tomcat/conf/ 

6c - Open server.xml file using VI editor

root@U16:/opt/tomcat/conf# vi server.xml

Find Connector port="8080"  And Change port to your wishing number.

<Connector port="8181" protocol="HTTP/1.1"                connectionTimeout="20000"                redirectPort="8443" /> 

6d - Save and Exit from file.

6E - Start Tomcat Server

root@U16:/opt/tomcat/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.

JAVA  has been started successfully, Let's cheque using Server IP and Port 8181.

http://10.0.0.161:8181/

7- Troubleshooting :-

When you lot choose Server Status, Showing fault 403 access denied 

7a- To Fix inwards a higher house error, you lot ask append below syntax inwards $CATALINA_HOME/conf/Catalina/hostname/manager.xml file. Open file inwards Vi editor.

root@U16: # vi /opt/tomcat/conf/Catalina/localhost/manager.xml

<Context antiResourceLocking="false" privileged="true" useHttpOnly="true" override="true">    <Valve className="org.apache.catalina.authenticator.BasicAuthenticator" securePagesWithPragma="false" />  </Context> 

Save and Exit from File.

7b-  Now opened upwards tomcat-users.xml file in addition to allow business office access from remote pc.

root@U16: # vi /opt/tomcat/conf/tomcat-users.xml

Add below Syntax to inwards a higher house file between <tomcat-users> </tomcat-users> 
.

 <role rolename="manager-gui"/> <user username="tomcat" password="s3cret" roles="manager-gui"/>

Save and Exit from File.
7c- Now Restart Tomcat Server :-

Stop Tomcat First

 root@U16: # /opt/tomcat/bin/./shutdown.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 root@U16: # 

Start Tomcat Now

root@U16: # /opt/tomcat/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. root@U16: # 

7d- Let's cheque Server Status Now

Enter User_Name (tomcat) in addition to Password (s3cret) when prompt. You volition come across below page when everything goes successfully.

That's ALL

!!! Cheers !!!

Sumber https://linuxhowtoguide.blogspot.com/