Apache Tomcat

Installation

manual

1. go into ApacheTomcat site and download package
2. un-package package
3. export CATALINA_HOME=/path/to/un-package
4. put .war packages into /webapps directory
5. start server: ./bin/startup.sh
6. stop server: ./bin/shutdown.sh

homebrew

Install tomcat using homebrew

brew install tomcat

This would download tomcat into /usr/local/Cellar directory

Verify if tomcat was installed

brew list

apt-get

https://www.digitalocean.com/community/tutorials/how-to-install-apache-tomcat-8-on-ubuntu-16-04

Update apt-get package index

sudo apt-get update

Install Java Development Kit

sudo apt-get install default-jdk

https://www.mkyong.com/tomcat/how-to-install-tomcat-in-ubuntu/

Search tomcat packages

sudo apt-cache search tomcat

Install tomcat packages

sudo apt-get install tomcat8-admin
sudo apt-get install tomcat8

Configuration

general

deploy

1. Obtain WAR package, via maven execute:
   mvn clean package
2. then go into ./target folder and copy the .war package
3. paste .war package into /path/to/tomcat/libexec/webapps directory
4. restart tomcat server
   1. this would extract the .war package into the same directory
5. go to http://ocalhost:8080/name-of-directory

manage webapps

1. to add an manage applications running on the server edit configuration file
   1. vim /path/to/tomcat/libexec/conf/tomcat-users.xml
2. Towards the bottom of this short config file you will see a selection of users – all commented out by default. You need to uncomment one of these and give it the extra role “manager-gui” (preferably also changing the username and password for security). The resultant user entry should look something like this:
   1. <user username=“admin” password=“password” roles=“tomcat,manager-gui” />
3. restart tomcat server
4. After this you can navigate to the page (or click the “Manager App” link on the main Tomcat Server page):
   1. http://localhost:8080/manager/html

enable ssl http://crunchify.com/step-by-step-guide-to-enable-https-or-ssl-correct-way-on-apache-tomcat-server-port-8443/

1. generate secure key
   1. keytool -genkey -alias keynamehere -keyalg RSA -keystore /path/to/new/keystore
2. add this to the $(CATALINA_BASE)/conf/server.xml file
   1.
   <Connector port="8443" protocol="org.apache.coyote.http11.Http11NioProtocol" maxThreads="150" SSLEnabled="true" scheme="https" secure="true" clientAuth="false" sslProtocol="TLS" keystoreFile=“/path/to/new/keystore” keystorePass="123456"/>
3. restart tomcat server
4. go to https://localhost:8443

apt-get

1. configuration and logs are created in

2. /var/lib/tomcat7
   

3. Tomcat bin folder is created in

4. /usr/share/tomcat7
   

Commands

homebrew

brew services start tomcat
brew services stop tomcat
brew services restart tomcat

manual/direct way

Run tomcat

/path/to/tomcat/bin/catalina run

• navigate to host page at: http://localhost:8080/

OR PREFERRED WAY run tomcat

/path/to/tomcat/libexec/bin/startup.sh

Stop tomcat

/path/to/tomcat/libexec/bin/shutdown.sh

Deployed applications are usually then located under the directory

/path/to/tomcat/libexec/webapps/

unix service managers

refer to: Daemon Manager - (SystemV - Upstart - Systemd - Launchd)

sample commands for apt-get:

• sudo /etc/init.d/tomcat8 start
• sudo /etc/init.d/tomcat8 stop
• sudo /etc/init.d/tomcat8 restart

Resources

• https://www.infoworld.com/article/3510460/what-is-apache-tomcat-the-original-java-servlet-container.html