is a network node that connects two networks using different protocols
together. While a bridge is used to join two similar types of networks, a
gateway is used to join two dissimilar networks.
The most common gateway is a router that connects a home or enterprise network to the internet. In most IP-based networks, the only traffic that doesn't go through at least one gateway is traffic flowing among nodes on the same local area network (LAN) segment -- for example, computers connected to the same switch.
Gateways can take several forms and perform a variety of tasks. These include:
Web application firewall - filters traffic to and from a web server and look at application-layer data.
Cloud gateway - provides basic protocol translation and simple connectivity to allow the incompatible technologies to communicate transparently.
API, SOA or XML gateway - manages traffic flowing into and out of a service, microservices-oriented architecture or an XML-based web service.
IoT gateway - aggregates sensor data, translates between sensor protocols, processes sensor data before sending it onward and more.
Cloud storage gateway - translates storage requests with various cloud storage service API calls.
Media gateway - converts data from the format required for one type of network to the format required for another.
Amazon API Gateway - allows a developer to connect non-AWS applications to AWS back-end resources.
VoIP trunk gateway - facilitates the use of plain old telephone service (POTS) equipment, such as landline phones and fax machines, with a voice over IP (VoIP) network.
Email security gateway - prevents the transmission of emails that break company policy or will transfer information with malicious intent.
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In addition to this blog, Netiquette IQ has a website with great assets which are being added to on a regular basis. I have authored the premiere book on Netiquette, “Netiquette IQ - A Comprehensive Guide to Improve, Enhance and Add Power to Your Email". My new book, “You’re Hired! Super Charge Your Email Skills in 60 Minutes. . . And Get That Job!” has just been published and will be followed by a trilogy of books on Netiquette for young people. You can view my profile, reviews of the book and content excerpts at:
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