Installing Apache Tomcat 9 and GeoServer on Centos 7
Tomcat (in older versions – Catalina ) – servlet container open source developed by Apache Software Foundation … Implements the specification servlets , specification JavaServer Pages (JSP) and JavaServer Faces (JSF). Written in language Java … Tomcat allows you to run web applications , contains a number of programs for self-configuration. Tomcat is used as a standalone web server , as a content server in combination with web server Apache HTTP Server and also as servlet container at application servers JBoss and GlassFish …
Preparatory stage
We update the operating system, add the EPEL repository
[[email protected]]# yum update
[[email protected]]# yum install epel-release
Installing the necessary software
[[email protected]]# yum install htop mc nano wget zip unzip
Install Java 8. The package is available in the official repository
[[email protected]]# yum install java-1.8.0-openjdk.x86_64 java-1.8.0-openjdk-devel.x86_64
Once the installation is complete, you can check the installed version using the following command
[[email protected]]# java -version
openjdk version "1.8.0_191"
OpenJDK Runtime Environment (build 1.8.0_191-b12)
OpenJDK 64-Bit Server VM (build 25.191-b12, mixed mode)
Installing Apache Tomcat 9
Download the software release from the Apache Tomcat official website and unpack it
[[email protected]]# cd /home
[[email protected]]# wget https://apache-mirror.rbc.ru/pub/apache/tomcat/tomcat-9/v9.0.13/bin/apache-tomcat-9.0.13.zip
[[email protected]]# unzip apache-tomcat-9.0.13.zip -d /opt
After unpacking, a directory called “apache-tomcat-9.0.13” was created. Let’s rename it
[[email protected]]# mv /opt/apache-tomcat-9.0.13 /opt/tomcat
Run the following command to set the CATALINA_HOME environment variable
[[email protected]]# echo "export CATALINA_HOME='/opt/tomcat/'" >> ~/.bashrc
[[email protected]]# source ~/.bashrc
It is not recommended to run Apache Tomcat as root, so we will create a new user that will start the Tomcat server. We will also change the permissions on all files in the / opt / tomcat / directory
[[email protected]]# useradd -r tomcat --shell /bin/false
[[email protected]]# chown -R tomcat:tomcat /opt/tomcat/
Create a systemd file to start the tomcat service with the following content
[[email protected]]# nano /etc/systemd/system/tomcat.service
[Unit]
Description=Apache Tomcat 9
After=syslog.target network.target
[Service]
User=tomcat
Group=tomcat
Type=forking
Environment=CATALINA_PID=/opt/tomcat/tomcat.pid
Environment=CATALINA_HOME=/opt/tomcat
Environment=CATALINA_BASE=/opt/tomcat
ExecStart=/opt/tomcat/bin/startup.sh
ExecStop=/opt/tomcat/bin/shutdown.sh
Restart=on-failure
[Install]
WantedBy=multi-user.target
Save the file and run the following command to restart the daemon
[[email protected]]# systemctl daemon-reload
Apache Tomcat 9 setup
Let’s make the executable scripts to start the Tomcat service, otherwise it will not start
[[email protected]]# chmod a+x /opt/tomcat/bin/startup.sh
[[email protected]]# chmod a+x /opt/tomcat/bin/catalina.sh
Launch Tomcat Apache and add it to startup
[[email protected]]# systemctl start tomcat
[[email protected]]# systemctl enable tomcat
Let’s open port 8080 in the firewall so that we can connect to the service
[[email protected]]# firewall-cmd --permanent --zone=public --add-port=8080/tcp
[[email protected]]# firewall-cmd --reload
Adding Users
In order to open access to Tomcat Manager, you need to edit the tomcat-users.xml file, adding the following lines to it
[[email protected]]# nano /opt/tomcat/conf/tomcat-users.xml
<role rolename="admin"/>
<role rolename="admin-gui"/>
<role rolename="admin-script"/>
<role rolename="manager"/>
<role rolename="manager-gui"/>
<!-- <role rolename="manager-script"/> -->
<!-- <role rolename="manager-jmx"/> -->
<!-- <role rolename="manager-status"/> -->
<user name="admin" password="password" roles="admin,manager,admin-gui,admin-script,manager-gui,manager-script,manager-jmx,manager-status" />
</tomcat-users>
Do not forget to change your password to a more secure one
By default, Tomcat Manager is only accessible from a browser running on the same machine as Tomcat. If you want to remove this restriction, you need to edit the context.xml file and comment out or remove the following line:
[[email protected]]# nano /opt/tomcat/webapps/manager/META-INF/content.xml
<!--
<Valve className="org.apache.catalina.valves.RemoteAddrValve"
allow="127.d+.d+.d+|::1|0:0:0:0:0:0:0:1" />
-->
Restart Tomcat
[[email protected]]# systemctl restart tomcat
Now, to get to our server with Tomcat, you need to type in the browser: http: // IP_address: 8080 / manager / html
Installing GeoServer
To install GeoServer, you need to download it from the official site and unpack it
[[email protected]]# cd /home
[[email protected]]# wget https://sourceforge.net/projects/geoserver/files/GeoServer/2.14.1/geoserver-2.14.1-war.zip
[[email protected]]# unzip geoserver-2.14.1-war.zip -d /opt/geoserver
Let’s transfer the necessary geoserver.war file to the webapps directory
[[email protected]]# mv /opt/geoserver/geoserver.war /opt/tomcat/webapps/geoserver.war
To get to our GeoServer, you need to type in the browser: http: // IP_address: 8080 / geoserver / web /
Default authorization data:
login: admin
pass: geoserver
If you already had GeoServer, but you forgot the login / password to access the admin panel, the password file is located here: /data/security/usergroup/default/users.xml
To change the password, you need to replace the line with the encrypted password:
<user enabled="true" name="admin"
password="digest1:D9miXH/hVgfxZJscMbfXtbtliG0WOxhLfsznyWfG38X2pda2JOSV4POi55PQI4tw"/>
на:
<user enabled="true" name="admin" password="plain:PASSWORD"/>
