What is AWS NAT Instances & NAT Gateways?

by XDK 4. August 2019 06:35

Explanation:

A NAT (Network Address Translation) instance is, like a bastion host, an EC2 instance that lives in your public subnet. A NAT instance, however, allows your private instances outgoing connectivity to the internet while at the same time blocking inbound traffic from the internet.

A NAT (Network Address Translation) Gateways provide the same functionality as a NAT instance, however, a NAT Gateway is an AWS managed NAT service. As a result, these NAT Gateways offer greater availability and bandwidth and require less configuration and administration.

Comparison of NAT Instances and NAT Gateways

Bastion host : A bastion host is a special-purpose computer on a network specifically designed and configured to withstand attacks. The computer generally hosts a single application, for example a proxy server, and all other services are removed or limited to reduce the threat to the computer.

Tags: ,

Amazon Web Service

Comments are closed

Disclaimer

The information provided here is based on my expreriences, troubleshooting and online/offline findings. It can be used as is on your own risk without any warranties and I impose no rights.

About the author

My name is Xavier Dilip Kumar Jayaraj and I am a Software Configuration Management Engineer with a background in application development, Build & packaging using Install Shield.

Profile in LinkedIn , PCEP-Certified , Azure-DevOps-C1

DevOps Tools

ALM tools:
Azure DevOps
IBM Rational
CA Agile Central-Rally
CollabNet VersionOne

Configuration tools:
• Puppet
• CHEF
• AWS OpsWorks
• Ansible

Build automation tools:
Apache Ant 
Apache Maven
Boot
Gradle
Grunt
MSBuild
Waf

Continuous Integration tools:
Bamboo
Buildbot
Hudson
TeamCity

Testing tools:
Selenium
Watir
Wapt
ApacheJMeter
QTest

Version control system tools:
Subversion
Team Foundation Server
GIT
Mercurial
Perforce

Code review tools:
Crucible
Gerrit
GitHub
Bitbucket Server

Continuous Delivery/release management tools:
XL Release
ElectricFlow
Serena Release
Octopus Deploy

Quotes I Like

"Failure will never overtake me if my determination to succeed is strong enough."  - Dr. APJ. Abdul Kalam

"Always be yourself, express yourself, have faith in yourself, do not go out and look for a successful personality and duplicate it." - Bruce Lee

"Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is the most important." - Bill Gates

"Innovation distinguishes between a leader and a follower." - Steve Jobs

Knowledge Base Articles