At work we have a component not yet migrated to Python 3, and we recently had some difficulties diagnosing a problem with the MySQL connector.

Because we were catching the mysql.connector.errors.Error and raising a custom exception, we were loosing the underlying stacktrace and hence couldn't troubleshoot the …

How To Test a spring.datasource.url like jdbc:mysql://localhost:3306/my_table :

git clone https://github.com/julianhyde/sqlline && cd sqlline
mvn package -Dmaven.test.skip=true
cp .../mysql-connector-java-5.1.40.jar target/
export CLASSPATH=$PWD/target/sqlline-1.4.0-SNAPSHOT-jar-with-dependencies.jar:$PWD/target/mysql-connector-java-5.1.40.jar
bin/sqlline
!connect jdbc:mysql://localhost:3306/my_table $user $password

Canary tokens are a free, quick, painless way to help defenders discover they've been breached (by having attackers announce themselves.)

Embeddable in :

• fake URLs ending in .html, .js, .php...
• emails to detect if you are spied on
• files in the cloud
• as file watchs do detect spies on filesystems
• desktop.ini for Windows directories or zip files
• MSSQL & MYSQL
• Word / PDF documents
• a JS resource is used elsewhere

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