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- If the server does not already have a directory, /opt/apache-tomcat, then create one (sudo mkdir /opt/apache-tomcat) and download the tomcat installation to this directory. You can download tomcat8 using the following command: sudo wget Tomcat 8 from the Apache Tomcat site (http://tomcat.apache.org/) using wget (e.g. wget http://wwwmirrors.gtlibadvancedhosters.gatech.educom/pub/apache/tomcat/tomcat-8/v8.0.20SOMEVERSION/bin/apache-tomcat-8.0SOMEVERSION.20.tar.gz)
- Be sure to check the sha1 or md5 hash on the download site is the same as for the downloaded tomcat file (e.g. openssl dgst -md5 apache-tomcat-7.0.xx.tar.gz). This should match the value at https://www.apache.org/dist/tomcat/tomcat-8/v8.0.20/bin/apache-tomcat-8.0.20.tar.gz.md5
- Untar the tomcat distribution and delete the tar file (sudo tar zxvf apache-tomcat-8.0.20.tar.gz).
- If the directory, /opt/apache-tomcat/current, did not exist create a "current" symlink to the new tomcat server directory (e.g. sudo ln -s apache-tomcat-8.0.20 current). If the directory, /opt/apache-tomcat, did exist and the link, current, was already there then you will need to sudo unlink current before linking it again. NOTE: The reason for symlinking the directory is so any references to the current tomcat server (e.g. $CATALINA_HOME, /etc/init.d/tomcat8...) do not have to be updated. This simplifies maintenance.
- This concludes the steps necessary to install or update the version of Tomcat. Please see Tomcat configuration for steps required to configure Tomcat.
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