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GeoServer Beginner's Guide
GeoServer Beginner's Guide

GeoServer Beginner's Guide: Share and edit geospatial data with this open source software server

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GeoServer Beginner's Guide

Chapter 2. Getting Started with GeoServer

Congratulations on your choice to take your data to the world with GeoServer. GeoServer can be installed on many different operating systems, since it's a Java application. You can run it on any kind of operating system for which exists a Java virtual machine. It takes advantage of multi-threaded operations, and supports 64-bit modern operating systems.

This chapter will cover, in detail, the steps that will bring you to a successful installation. Though we will explain the whole process in detail, don't be afraid. As soon as you finish reading it, you will have your running copy of GeoServer. The steps will be illustrated in two scenarios, an Ubuntu 12.04 machine and a Windows 7 machine. We chose these two as they cover the majority of users. Besides Ubuntu being a Debian derivative, the installation process can be easily reproduced on other similar distributions, for example, Debian or Linux Mint.

We'll talk about the advanced settings most useful...

Installing Java


GeoServer is a Java application. So, we need to ensure that you have it installed and properly working on your machine, but you don't need to know how to write Java™ to install or to get started using GeoServer.

There are two main packages of Java. Depending on what you are planning to do with Java, you may want to install a JDK (Java Development Kit) or JRE (Java Runtime Environment). The former enables you to compile Java™ code, while the latter has all you need to run most Java applications.

Starting from release 2.0, GeoServer does not need a full JDK installation and you can go safely with JRE. It works well with Java 6 but as Java 7 is not deeply tested by developers, it should work but you may experience minor issues. Unless you have some strong reasons to use Java 7, you should use JRE 6.

In the 90s, Java development was started by Sun Microsystems. Sun has developed each new release until it merged into Oracle Corporation. While Oracle did not change the Java license...

Time for action – checking the presence of Java on Windows


We will verify the presence of a JRE/JDK installation on Windows, using the following steps:

  1. From the Start menu, select Control Panel.

  2. Then select Programs. If your system has a JRE/JDK installed, you should see an icon with the Java logo as shown in the following screenshot. It is a shortcut to the Java control panel.

  3. Open the Java control panel and select the Java tab. Here you will find settings for JRE. Press the Show Me button to visualize the installed release and the installation folder.

What just happened?

You checked for the presence of Java on your computer. In case you didn't find it, we are going to install it in the next section. (If you did find it, skip to the Installing Apache Tomcat section.)

Time for action – checking the presence of Java on Ubuntu


We will check JRE/JDK installation from the command line.

  1. Log in to your server and run this command:

    ~ $ sudo update-alternatives --config java
    
  2. If there is no Java properly configured you should see an output like the following:

    update-alternatives: error: no alternatives for java.
    
  3. In case there is one or more Java installed the output will be similar to:

    There is only one alternative in link group java: /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java
    Nothing to configure.
    

    Or:

    There are 2 choices for the alternative java (providing /usr/bin/java).
    
    Selection Path Priority Status
    ————————————————————
    * 0 /usr/lib/jvm/java-6-openjdk/jre/bin/java 1061 auto mode
    1 /usr/lib/jvm/java-6-openjdk/jre/bin/java 1061 manual mode
    2 /usr/lib/jvm/java-6-sun/jre/bin/java 63 manual mode
    
    Press enter to keep the current choice[*], or type selection number:
    

What just happened?

We determined if a Java installation is already present on our machine. This...

Time for action – installing JRE on Windows


We will install Oracle JRE 1.6. We are assuming that you didn't find any previous Java installation.

  1. Navigate to the Downloads tab at http://www.oracle.com/technetwork/java/javase/downloads/jre6u37-downloads-1859589.html.

  2. Select the installer for Windows 64-bit, that is, jre-6u37-windows-x64.exe, and save it in a convenient folder.

  3. Select the downloaded file and run it as an administrator; press the Yes button when asked from the User Account control.

  4. Go with the default settings and press the Install button.

  5. After it has been downloaded, you should see a window informing you about the success of installation.

What just happened?

We installed JRE on your Windows computer. The first requirement is now fulfilled and you can go over to the Tomcat installation.

Time for action – installing JRE on Ubuntu


We will install Oracle JRE 1.6. As mentioned previously, there is no Ubuntu package for Java 6; we are going to perform a manual installation.

  1. Visit the download area at http://www.oracle.com/technetwork/java/javase/downloads/jre6u37-downloads-1859589.html.

  2. Download the tar.gz archive, choosing the 32-bit or 64-bit archive, depending on the Ubuntu edition you are working with. You must accept the license agreement (reading it might be a nice idea) before you can select one of the tar.gz archives (be sure to avoid rpm archives as they are not for Debian-based Linux distribution).

  3. Save the archive to your home folder and extract it.

    ~ $ chmod a+x jre-6u37-linux-x64.bin
    ~ $ ./jre-6u37-linux-x64.bin
    
  4. The JRE 6 package is extracted into ./jre1.6.0_37 folder. Now move the JRE 6 directory to /opt and create a symbolic link to it in the default folder for libraries.

    ~ $ sudo mv ./jre1.6.0_37* /opt
    ~ $ sudo ln -s /opt/jre1.6.0_37 /usr/lib/jvm/
    
  5. Let's check the...

Installing Apache Tomcat


Having correctly installed the JRE you can now pass on and install the servlet container. Servlet container, or web container, is the component server that interacts with the servlets. It is responsible for managing the lifecycle of servlets, mapping a URL to a particular servlet, and ensuring access security. It should implement Java servlet and JavaServer Pages technologies.

As for JRE, you have a few choices here; a brief list is at http://en.wikipedia.org/wiki/Web_container.

Apache Tomcat, GlassFish , and JBoss are most popular and are all available in an open source edition. You may wonder which one is the best choice for running GeoServer. In a production environment, usually the same container is shared among several web applications. You are not going to choose the container; the architects and system administrators made their choices and you have to conform to them. As a beginner, you have the opportunity of selecting it! Apache Tomcat should be your first...

Time for action – installing Apache Tomcat on Windows


We will install the Apache Tomcat 7.x release.

On Windows, we will use the installer. It will add an item in the service control panel allowing you to set Tomcat for automatic startup.

  1. Open your browser and visit the download page for 7.x releases at http://tomcat.apache.org/download-70.cgi.

  2. Select the 32-bit/64-bit Windows Service Installer and save the EXE file to a folder on your machine.

  3. Select the downloaded file and run it as the administrator, then press the Yes button when asked from the User Account control.

  4. You need to agree to the license agreement.

  5. Leave the default components selection unchanged. We don't need the Host Manager nor the web application examples:

  6. Go with the default port number, unless you know there are other services bounded to them. Set the User Name and Password for web administration (for example, tomcat).

  7. If your JRE installation was successful, the installer will prompt you with the right path to it. In case...

Time for action – installing Apache Tomcat on Ubuntu


We will install Apache Tomcat 7.x release.

On Ubuntu, you have two alternatives for installing Apache Tomcat. You can use the package manager to get it. At the time of writing, Ubuntu repositories contain the 7.0.26 release of Apache Tomcat for Ubuntu 12.04. I prefer, and we will be following this method in the book, to download the archive and perform a manual installation. You will have full control over the installation and you can choose the appropriate release number. On the other hand, you can't rely on automatic updates for Tomcat.

  1. You may want to read the license agreement: http://www.apache.org/licenses.

  2. Download the archive:

    ~$ wget http://apache.panu.it/tomcat/tomcat-7/v7.0.27/bin/apache-tomcat-7.0.27.tar.gz
    
  3. Extract it in a folder for alternate applications, specific to your server; /opt sounds like a good place.

    ~$ sudo tar xvfz apache-tomcat-7.0.27.tar.gz -C /opt
    
  4. You need to properly configure Tomcat before you can use it. Go...

Time for action – configuring Tomcat as a service on Ubuntu


On Windows we configured Tomcat as a system service, that is, a program running at boot without any user action. Are you wondering why on Ubuntu you have to manually start Tomcat? You don't. Indeed, the operating system can be configured for automatic start of services. In this section, you will create a script and learn how it works.

  1. Open your preferred editor and enter the following lines. Be sure to launch the editor with sudo as we are going to create a file in a system folder.

    #!/bin/sh
    ### BEGIN INIT INFO
    # Provides:          tomcat
    # Required-Start:    $local_fs $remote_fs $network $syslog
    # Required-Stop:     $local_fs $remote_fs $network $syslog
    # Default-Start:     2 3 4 5
    # Default-Stop:      0 1 6
    # Short-Description: Start/Stop Tomcat  v7.0.27
    ### END INIT INFO
    #
    #  /etc/init.d/tomcat
    #
    export JAVA_HOME=/usr/lib/jvm/jre1.6.0_37
    export PATH=$JAVA_HOME/bin:$PATH
    export CATALINA_HOME=/opt/apache-tomcat-7.0.27
    export JAVA_OPTS...

Installing GeoServer


We are well on our way! Go to the GeoServer site (http://geoserver.org/display/GEOS/Stable) and review the installation options available. You'll find several versions of GeoServer. We're going to be using the Web Archive version.

We will deploy the web archive on Apache Tomcat. As you may have guessed, using a Java application server is pretty much the same on any operating system. The next section is common to Linux and Windows and then we will have a little difference in the book, depending on the operating system you are using.

Time for action – deploying GeoServer on Tomcat


With Java installed and working, let's install the GeoServer. The latest version is 2.2.

  1. Download the OS-independent version from GeoServer's download page. You can point your browser to the URL or use a command-line tool like wget:

    ~$ wget http://downloads.sourceforge.net/geoserver/geoserver-2.2-war.zip
    
  2. Unzip the archive file:

    ~$ unzip geoserver-2.2-war.zip
    The war file for GeoServer is quite big, actually a little more than 52 MByte. In Tomcat 7 Manager there is a default limit for deployable application that is at 50 MByte. You will set it to a safe size for GeoServer. Open the $CATALINA_HOME/webapps/manager/WEB-INF/web.xml file and look for this section
        <multipart-config>
          <!-- 50MB max -->
          <max-file-size>52428800</max-file-size>
          <max-request-size>52428800</max-request-size>
          <file-size-threshold>0</file-size-threshold>
        </multipart-config>
    
  3. Set the max-file...

Implementing basic security


The web interface shown at http://localhost:8080/geoserver requires you to log in. You can use the default values of admin as username and geoserver as password. The new interface will show you some warning about security issues:

You may ignore the third and fifth warning; we will cover them in detail in Chapter 10, Securing Your GeoServer Before Production. It is a good idea to address the others immediately.

Time for action – improving security settings


  1. We will start by changing the default password for the administrator. Click on the Change it link on the left-hand side of the warning.

  2. A new page containing user properties will show up. Insert the new password in the Password and Confirm password textboxes and click on the Save button. You don't need to restart GeoServer or Tomcat; the new password is active now!

  3. The users.properties.old file is a security risk because it contains user passwords in plain text. GeoServer does not need it so it's safe to delete it.

    ~$ sudo rm /opt/apache-tomcat-7.0.27/webapps/geoserver/data/security/users.properties.old
    
  4. Now open the masterpw.info file. It contains the password generated by GeoServer for the root user. Store it in a secure place and delete the file.

    ~$ sudo rm /opt/apache-tomcat-7.0.27/webapps/geoserver/data/security/masterpw.info
    

What just happened?

Although you are setting up a development machine, security is always an issue. GeoServer ships with...

Summary


We've laid out a basic foundation to get GeoServer up and running.

In this chapter, you learned how to check whether the Java Runtime Environment (JRE 1.6) is installed and properly working. You also installed Tomcat on Windows and Linux, and configured it to start automatically.

After filling the system requirements, you explored the web archive option to install GeoServer and accessed the administrative interface using a web browser.

The web interface is a very powerful tool and you have to know it well to use all GeoServer's features. In the next chapter, we will explore all the sections, looking in detail at what you can do to configure it, how to add data, and preview maps.

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Key benefits

  • Learn free and open source geospatial mapping without prior GIS experience
  • Share real-time maps quickly
  • Learn step-by-step with ample amounts of illustrations and usable code/list

Description

GeoServer is an open source server-side software written in Java that allows users to share and edit geospatial data. Designed for interoperability, it publishes data from any major spatial data source using open standards. GeoServer allows you to display your spatial information to the world. Implementing the Web Map Service (WMS) standard, GeoServer can create maps in a variety of output formats. OpenLayers, a free mapping library, is integrated into GeoServer, making map generation quick and easy. GeoServer is built on Geotools, an open source Java GIS toolkit.GeoServer Beginner's Guide gives you a kick start to build custom maps using your data without the need for costly commercial software licenses and restrictions. Even if you do not have prior GIS knowledge, you will be able to make interactive maps after reading this book.You will install GeoServer, access your data from a database, style points, lines, polygons, and labels to impress site visitors with real-time maps.Follow along through a step-by-step guide that installs GeoServer in minutes. Explore the web-based administrative interface to connect to backend data stores such as MySQL, PostGIS, MSSQL, and Oracle. Display your data on web-based interactive maps, style lines, points, polygons, and embed images to visualize this data for your web visitors. Walk away from this book with a working application ready for production.After reading the GeoServer Beginner's Guide, you will have beautiful, custom maps on your website built using your geospatial data.

Who is this book for?

You are a web developer with knowledge of server side scripting, and have experience with installing applications on the server. You have a desire to want more than Google maps, by offering dynamically built maps on your site with your latest geospatial data stored in MySQL, PostGIS, MsSQL or Oracle. If this is the case, this book is meant for you.

What you will learn

  • Install GeoServer quickly
  • Access your dynamic real-time geospatial data which you can easily integrate into your own web-based application.
  • Create custom styles for lines, points, and polygons for great looking maps
  • Command GeoServer remotely using REST
  • Tune your GeoServer instance for performance
  • Move GeoServer into production
  • Learn advanced topics to extend GeoServer s capabilities

Product Details

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Table of Contents

12 Chapters
GIS Fundamentals Chevron down icon Chevron up icon
Getting Started with GeoServer Chevron down icon Chevron up icon
Exploring the Administrative Interface Chevron down icon Chevron up icon
Accessing Layers Chevron down icon Chevron up icon
Adding Your Data Chevron down icon Chevron up icon
Styling Your Layers Chevron down icon Chevron up icon
Creating Simple Maps Chevron down icon Chevron up icon
Performance and Caching Chevron down icon Chevron up icon
Automating Tasks: GeoServer REST Interface Chevron down icon Chevron up icon
Securing GeoServer Before Production Chevron down icon Chevron up icon
Tuning GeoServer in a Production Environment Chevron down icon Chevron up icon
Going Further: Getting Help and Troubleshooting Chevron down icon Chevron up icon

Customer reviews

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Full star icon Full star icon Full star icon Full star icon Half star icon 4.5
(15 Ratings)
5 star 60%
4 star 33.3%
3 star 6.7%
2 star 0%
1 star 0%
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GPU Nov 13, 2013
Full star icon Full star icon Full star icon Full star icon Full star icon 5
More than half way through the book and it was fun to read through the book and set up a GIS web server within a day. No problem to follow for the most part. The only problem was to load a shapefiles into MySQL database. Have tried several times and all failed. There might be a few steps that the book did not provide or explain well. Overall, this book provides a thorough introduction to GeoServer and is a good read.
Amazon Verified review Amazon
Paolo Corti Apr 11, 2013
Full star icon Full star icon Full star icon Full star icon Full star icon 5
I have enjoyed very much to read this book. I have been exposed marginally to GeoServer in the last years, but in the last few months I have been starting using it quiet extensively, so it was nice that this book just came out now.First, the writing style of the authors is pleasant and clear, and they manage to teach you a difficult framework in a very structured and efficient way.Most of the concepts taught in the book can be mastered also from online resources, but in my opinion the book is very well structured and it is very nice to have everything packed in a single book.The books can be divided in two parts: an introductory part from chapter 1 to chapter 6 and a more advanced part from chapter 7 to chapter 12.I found the first part a bit boring, maybe because I already mastered most of the concepts with the practice, but found the second more advanced part extremely interesting.Chapter 1 gives you a gentle introduction to GIS in case you have not experience with it.In chapter 2 there is everything you need to know to install GeoServer and all of its components.Chapter 3 gives a tour of the administrative interface.After an introduction to WMS and WFS in chapter 4, in the following chapter the book explain how to add your own data in some of the most common formats (shapefiles, PostGIS, GeoTiff, Oracle Spatial and MySQL spatial) and expose them as web service.Chapter 6 is a long description on how to implement styles using the SLD OGC standard.Then from chapter 7 it starts the challenging part of the book: here you will get the basics to create very basic viewer with JavaScript framework such OpenLayers, GoogleMap API and Leaflet.Chapter 8 gives a gentle introduction on how to dramatically boost WMS performance using a caching solution with the GeoServer caching integrated tool: GeoWebCache.Chapter 9 gives an overview to GeoServer REST interface: this is extremely useful if you are planning to programmatically access to GeoServer. Using REST it is possible to do almost everythin that could be done using the administrative interface, but using code in any language. The chapter is rich of sample using the curl command line utility and Python.Chapter 10 explain GeoServe security (Users, Role and groups), while chapter 11 gives you all the tips needed to use GeoServer in production: Java configuration parameters, disabling unused services, setting of an Apache proxy, and (this is a gem in my opinion, and it has a very clear hand on) how to configure a cluster of GeoServer instances for scaling out.Finally, in the last chapter, the authors provide some more details about WFS and WCS OGC standards.To conclude this review: this is really an excellent book that provide a very good insight to the beginner, but also give you more advanced details to the experienced users. If you are serious about GeoServer development, this is a must have book.
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Bette Lamore Sep 10, 2015
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Everything I expected.
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Jose I. Miranda Nov 29, 2013
Full star icon Full star icon Full star icon Full star icon Full star icon 5
If you want to know how to deploy your maps on the web, this is the book. It covers the basic installation and awesome applications. Must have book for map web developers.
Amazon Verified review Amazon
Peter Moore Jun 18, 2014
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Very useful, helped me get up-to speed with implementing GeoServer very quickly. Highly recommended if you are new to implementing GeoServer within your organisation.
Amazon Verified review Amazon
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