How to replace a security group of an EC2 instance in AWS
Introduction A security group controls the traffic that is allowed to reach and leave the instance. It is a set of IP filter rules that define how to handle […]
Cloud & AWS
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Cloud & AWS
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Cloud & AWS
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How to enable email notifications for the Nagios alerts
Introduction Nagios is an open-source IT system monitoring tool. It sends alerts when critical infrastructure components fail and recover, providing administrators with notice of important events Prerequisites Implementation
Cloud & AWS
3 min read
HOW TO SET UP THE CPU SERVICE MONITOR ON NAGIOS
Introduction: To set up the CPU service monitor on Nagios, you’ll need to follow these general steps. CPU checks CPU usage, load averages, or other performance metrics on
Cloud & AWS
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How to Install OpenVZ 7 on CentOS 7
IntroductionOpenVZ is an operating-system-level virtualization technology for Linux. It allows a physical server to run multiple isolated operating system instances, called containers, virtual private servers, or virtual environments
Cloud & AWS
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How to install CloudWatch on instances run by Lightsail?
Installing CloudWatch on Lightsail instances provides access to a wide array of metrics.Once CloudWatch is configured, a dedicated namespace linked to the Lightsail instance becomes visible on the
Cloud & AWS
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How to set up the PM2 service monitor on Nagios
Introduction: To set up the PM2 service monitor on Nagios, you’ll need to follow these general steps. PM2 is a process manager for Node.js applications, so we’ll assume