As the market for log monitoring and analysis tools has matured, a mix of commercial and open-source products are now available. This article focuses on the differences between ELK and Graylog, two log monitoring tools.
Syslog is a protocol that enables a host to transmit event notification messages to event message collectors, commonly known as Syslog Servers or Syslog Daemons, over IP networks.
Morgan is a middleware for node.js that logs HTTP requests and is commonly used in Express projects. The middleware pattern is just a list of handler methods, each of which calls the next in line once it has done its work.
A log is a file that records the communications between a system and its users, or a data-gathering tool that records the type, content, and time of transactions made by a person from a system terminal. We've put up a list of some best practises for setting up logging in their applications.
Node.js logging can be done in a variety of ways. To improve logging, we can use the built-in features or one of the many popular packages. Logs can be used to analyse user behaviour and the application's general health.
If your company has multiple servers or services that create log files, reviewing them to find the causes of troubles or to find security breaches, takes up much time.