Network monitoring is needed in a system that persistently scrutinizes a computer network for sluggish or weakening components. It informs the network administrator via SMS or email in case of outages. It’s a part of network management.
Whilst an intrusion-detection system scrutinizes a network for dangers from the exterior, a network monitoring system scrutinizes the network for issues sourced by overloaded or crashed servers. For instance, to know the status of a web server, monitoring software might sporadically send an HTTP request to obtain a page. For e-mail servers, a text message might be sent via SMTP & recovered by POP3 or IMAP.
Generally measured standards are response time, accessibility & uptime, though both reliability and consistency measures are beginning to obtain popularity. The extensive incorporation of WAN optimization tools is having negative effects on most of the network monitoring devices – particularly when it is about observing precise end-to-end response time since they restrict round trip visibility.
Internet server monitoring
Monitoring an internet server denotes that the owner of the server always notified if one or more of services go down. Server monitor could be internal, for example, web server application verifies its status and informs the proprietor if some services go down, and external, i.e. some web server monitoring firms verify the service status with certain regularity. Server monitoring can cover a test of system measures, such as memory usage, CPU usage, disk space and network performance. Also, it can comprise application monitoring, such as verifying the procedures of programs such as Nginx, Postgres, Apache, MySQL and others.
External monitoring is more dependable, as it keeps working when the server totally goes down. Also, manyserver monitoring tools have performance benchmarking, alerting abilities & the capability to connect certain entrances with automatic server responsibilities such as performing a backup.
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