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Questions tagged [amazon-vpc]

Amazon Virtual Private Cloud (Amazon VPC) lets you provision a logically isolated section of the Amazon Web Services (AWS) Cloud where you can launch AWS resources in a virtual network that you define

Amazon Virtual Private Cloud (Amazon VPC) lets you provision a logically isolated section of the Amazon Web Services (AWS) Cloud where you can launch AWS resources in a virtual network that you define. For additional information, see:

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Traffic in a AWS virtual private cloud

On Amazon AWS, should I encrypt sensitive traffic between instances in a virtual private cloud? More specifically, is the traffic between the instances in such a VPC private as in a virtual network, or can it be intercepted? Couldn't find this info…
arnuschky
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How do you get Redis connections working within an Amazon VPC private subnet?

I have an Amazon VPC setup with a private subnet containing 2 instances. One of them has redis running on it, the other instance I want to use to connect to the redis server. I have the redis instance listening on port 6123. When I connect locally…
Tomek
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How to configure cross region VPC peering on AWS with Terraform

I'm trying to create a terraform configuration to spin up multiple VPCs in different regions and create VPC peer connections between them. This is my module for the VPC # Required Variables variable "region" {} variable "cluster_name" {} variable…
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Connecting to SMTP server from AWS Lambda

On my AWS Lambda function, my javascript code times out whenever I try to use nodemailer to connect to my Amazon SES SMTP server (port 465). However, if I run the script locally, it works fine, which leads me to believe it's either a problem with…
iRyanBell
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AWS: reduce nat gateway costs for a small system

I am setting up infrastructure for a startup which pretty much will not have a lot of traffic, but should be able to scale when needed. We are favouring a setup with a LB, that distributes traffic to the frontend nodes in a dedicated private subnet…
st-h
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IP Address exhaustion for lambdas in VPC

I am currently part of a group that is dealing with the repercussions of deploying 300+ AWS Lambda functions running Node.js in place of a more traditional REST API. I recently implemented an application that runs on EC2 instances in a VPC on a…
SirCapsLock
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What is the benefit of VPC Endpoints on AWS?

I learned a long time ago that if you want an EC2 instance to be able to talk to AWS services like SQS, Kinesis and the like, the instance has to either have a public IP address or there needs to be something within the VPC doing NAT. When I first…
smitelli
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Ec2 instance static private ip address

I am using an on-demand instance for testing some services in my spare time. So, I start and stop that instance very frequently, and I see its public and private IPs changing each time. This is annoying, because I always need to change hostname in…
Fabio B.
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Amazon AWS IAM Policy for single VPC Subnet

I want to create an IAM policy that allows a user deploy instances as follows: They can only use 1 AMI They can only deploy to 1 specific VPC subnet They can only use 1 specific VPC security group This scenario is addressed in the VPC…
Garreth McDaid
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How do you get AWS VPC EC2 instances to be able to see the AWS APIs?

We're spinning up infrastructure inside of an AWS VPC via CloudFormation. We're using auto-scaling groups to bring up VPC-EC2 instances (so, we don't bring up instances directly; ASGs manage that). Inside of a PVC, EC2 instances only have a private…
Peter Mounce
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Issue routing openswan vpn traffic beyond the server

Trying to set up a openswan based server sitting in an Amazon VPC cluster. The goal is to make it so we can VPN into VPC and have our workstations be as if they were on the network, more of a roadwarrior configuration. Our VPN client of choice is…
Ken Robertson
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Simplest possible VPN to Amazon EC2 instance

I have setup an EC2 instance (Windows Server 2008) that I will let different developers connect to. Since I want the connection to be secure I am trying to setup a VPN connection to that machine, but I don't have much idea on how to do this in the…
Karl
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Is there any way of viewing, in AWS, what ips in a subnet have been allocated?

Is there any way of seeing what ip addresses AWS thinks have been allocated in a subnet? I've run a ping scan, and I've checked our internal ip management software, and there should be more than 8 ips free, however the Network Load Balancer creation…
Some Linux Nerd
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Security Considerations of AWS Private Subnet vs Private Security Group

AWS Virtual Private Cloud allows several ways of restricting access to devices on the VPC network from the Internet. 1) Place devices into a private subnet (no Internet Gateway). Each device can communicate with other devices using private IP's. No…
hellodanylo
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EC2 VPC Intermittent outbound connection timeouts

My production web service consists of: Auto-scaling group Network loadbalancer (ELB) 2x EC2 instances as web servers This configuration was running fine until yesterday when one of the EC2 instances started to experience RDS and ElastiCache…
DanielB6
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