Uploaded byMike Hathaway
Know where the fire is
This document discusses using Nagios to monitor websites and systems for problems. It recommends monitoring to identify issues early before they cause downtime or other problems. Nagios is an open source monitoring platform that can check systems and services and alert administrators of any warnings or critical issues. It works by running scripts to check sites and services and setting states to notify administrators if problems occur. The document provides information on setting up Nagios on Ubuntu and configuring it to monitor specific servers, services, and Drupal-related checks. Nagios can help administrators know where issues arise so they can act quickly to minimize any negative impacts.
Know where the fire is
- 1. Know where thefire is Mike Hathaway
- 2. Why Monitor? Do youwant your customer to inform you when things go wrong? Things do go wrong Act on problems sooner Minimize downtime Increase sales Make sure no one Plays A Game
- 3. Besides: Do you reallytrust the geniuses at your Service Provider?
- 4. Monitoring Methods Your SiteTells You (cronscript or plugin) You check your site, Your customers check your site An external system checks (Nagios)
- 5. Your site tellsyou Watchdog Log Entries Downside If its not there how does it tell you?
- 6. You / YourCustomers Do you have time to check How do you look to your customers when they find the problems How often is anything really checked? Drupad (Helpful Option)
- 7. An external system checks Nagios AcquiaNetwork Bijk.com and other paid sites
- 8. My NOC Open TechSupport Tickets Clock Nagios Problems Queue No those are not the actual servers
- 9. What is Nagios NagiosAin’t Gonna Insist On Sainthood (netsaint) GPL Licensed Network Monitoring Platform Checks and Alerts Basically a bunch of perl scripts
- 10. What can itdo, What do I need Anything (plug in architecture) Run Options Old Box Virtual Machine (Me) Cloud Machine (AWS)
- 11. How it works Nagiosruns a script Evaluates the results Sets a state and notifies if needed OK Warning Critical
- 12. Out of thebox (non drupal specific) Server Website MySQL (add third party nagios plugin)
- 13. Drupal Specific Runthe plugin on your site http://drupal.org/project/nagios Drupal 5.x (really?) Drupal 6.x
- 14. What is monitored? Core releases Security releases Cron Permissions Database Scheme Think Status Report
- 15. Nagios Setup Ubuntu NagiosQuickstart http://nagios.sourceforge.net/ docs/3_0/quickstart- ubuntu.html Don’t use apt-get nagios
- 16. Nagios uses configfiles, first define a server
- 17. Then Define aService
- 18. Service runs acommand
- 19. Based on returnedstatus Nagios can Email you (out of the box) SMS (add on) Twitter (add on) Notify someone else (Optimal)
- 20. Watch your worldmelt down
- 21. Nagios can monitor yourworld. It monitors Mine
- 22. Know where thefire is Mike Hathaway mike@mikehathaway.com Get the links and notes at www.MikeHathaway.com/Fire