We’ve finally made the finishing touches on the elasticsearch monitoring and officially released it. Only after three complete reworks did we manage to achieve really nice results and detect all the issues in any ES cluster setup.

If you run the audit daemon on your Linux distribution you might notice that some of the most valuable information produced by auditd is not transmitted when you enable syslog forwarding to Graylog. By default, these messages are written to /var/log/audt/audit.log, which is written to file by the auditd process directly and not sent via syslog.

Ruby is an opinionated language with inbuilt Ruby logging options that will serve the needs of small and basic applications. Whilst there are fewer alternatives to these than say, the JavaScript world, there are a handful, and in this post, I will highlight those that are active (based on age and commit activity) and help you figure out the options for logging your Ruby (and Rails applications).