When a monitoring check reaches or passes a specific threshold or value, an alarm is triggered and you'll receive a Warning or Critical email notification for the monitored resource. This article describes some simple...
Checking system load
If the demands being placed on a running program cause it to request excessive resources from your server this can lead to poor performance and system instability.
Uptime
First let's check the load on your...
Troubleshooting Internet services
This article series provides a set of steps for troubleshooting general issues accessing a network service, like sending an e-mail using your mail server or viewing a webpage on your web server....
Have you just made DNS changes but aren't sure if they're correct? Don't want to wait for the changes to propagate before discovering a small typo?
No problem. Using the common but often ignored command dig (domain information...