Nevermind - I fixed this, my solution was to stop tomcat8, remove the guacamole.war file, guacamole tomcat8 directory and then re-dploy the guacamole client, using the commands below. Perhaps an issue caused by building the guacamole-clientvia git clone, rather than downloading .war file? # stop tomcat8 systemctl stop tomcat8
# remove guacamole files/ directoryrm /var/lib/tomcat8/webapps/guacamole.war rm -r /var/lib/tomcat8/webapps/guacamole/ # download the pre-built guacamole-client wget -O guacamole.war http://downloads.sourceforge.net/project/guacamole/current/binary/guacamole-0.9.9.war # deploy and create symlink under tomcat8 cp /guacamole/target/guacamole.war /etc/guacamole/ ln -s /etc/guacamole/guacamole.war /var/lib/tomcat8/webapps/ # start tomcat8 systemctl start tomcat8 From: chrismbradf...@outlook.com To: user@guacamole.incubator.apache.org Subject: Extension "guacamole-auth-jdbc-mysql-0.9.9.jar" could not be loaded Date: Wed, 12 Oct 2016 09:02:40 +0100 I have installed guacamole using latest code (git clone) as outlined here: http://www.cb-net.co.uk/linux/debian-8-6-jessie-installing-guacamole/ I have since tried to get MySQL configuration working using the steps below: # Download guacamole-auth-jdbc-0.9.9.tar.gz and copy to /etc/guacamole/extensions/ wget http://netix.dl.sourceforge.net/project/guacamole/current/extensions/guacamole-auth-jdbc-0.9.9.tar.gz tar -zxvf guacamole-auth-jdbc-0.9.9.tar.gz cd ~/guacamole-auth-jdbc-0.9.9/mysql cp *.jar /etc/guacamole/extensions/ cd.. # Download mysql-connector-java-5.1.40-bin.jar and copy to /etc/guacamole/lib/ wget https://cdn.mysql.com//Downloads/Connector-J/mysql-connector-java-5.1.40.tar.gz tar -zxvf mysql-connector-java-5.1.40.tar.gz cd mysql-connector-java-5.1.40 cp mysql-connector-java-5.1.40-bin.jar /etc/guacamole/lib/ # Configure MySQL via supplied scripts mysql -u root -p<password> CREATE DATABASE guacamole; CREATE USER 'guacamole'@'localhost' IDENTIFIED BY '<password>'; GRANT SELECT,INSERT,UPDATE,DELETE ON guacamole.* TO 'guacamole'@'localhost'; FLUSH PRIVILEGES; quit cd ~/guacamole-auth-jdbc-0.9.9/mysql cat schema/*.sql | mysql -u root -p guacamole (I confirmed the guacadmin user was created) # Guacamole.properties as below: mysql-hostname: localhost mysql-port: 3306 mysql-database: guacamole mysql-username: guacamole mysql-password: <password> I am however, unable to get the extension to load, and thus authentication fails. The error in catalina.out as below: ERROR o.a.g.extension.ExtensionModule - Extension "guacamole-auth-jdbc-mysql-0.9.9.jar" could not be loaded: Authentication provider class cannot be loaded (wrong version of API?) No errors anywhere else that I can see, including when running guacd as below - not sure what I am missing, or what the caus eof this error would be? /usr/local/sbin/guacd -f -L debug
