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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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CIDR ipv4 allocation to subnet

I have my VPC configured with 10.0.0.0/16 CIDR. I want to create around 7-10 subnets in this VPC. On my calculation, I have decided to have 8 subnets where each subnet can host 8192 resources (8192*8=65536). As per my calculation, 2^13=8192.…
vivek reddy
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CIDR is not within the CIDR ranges of VPC

I have created a custom VPC with CIDR of 10.0.0.0/16. I want to create 2 subnets with 10.1.0.0/16 and 10.2.0.0/16. But I am unable to do. Getting error: CIDR is not within the CIDR ranges of VPC Why is that? In default CIDR of 172.31.0.0/16, we can…
vivek reddy
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EC2 Instance gateway change automatically

Some of my instances are deployed with code into its /etc/rc.local #!/bin/sh # Managed by puppet - do not modify /sbin/route del default /sbin/route add default gw 11.0.0.254 All works fine at the beginning but after a few minutes the gateway…
icalvete
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Unable to connect to redis on amazon (same VPC different subnets)

I am trying to set up a Redis cluster using amazon's ElasticCache I have a VPC with the following CIDR: 10.0.0.0/16. Which has five subnets: 2 private - 10.0.3.0/24 and 10.0.1.0/24 3 public - 10.0.0.0/24 10.0.2.0/24 10.0.4.0/24 After the creation…
Eitan Kats
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Routing to a simulated network running inside an AWS Instance

So, we're running a simulated network on a server in AWS and i'm trying to figure our how to enable routing to that simulated network both from inside AWS and from our remote offices. Our VPC CIDR is 10.10.0.0/18 The Simulated network is…
MCC
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Can't connect to a public accessible AWS RDS

I was running a serverless web application on a lambda inside a VPC, and connecting to a Aurora-MySQL RDS instance, with inbound rules to allow traffic from the security group of the lambda The connection was working fine, however, quite often the…
dfranca
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How to securely connect two VPC without using Connection Peering

Suppose some services are running on EC2 instances on VPC A and other services are running on on-premise hardware or even other Cloud Computing environments, say Cluster B equipped with the public IP. We want to securely connect the VPC A instances…
Soheil Pourbafrani
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Connect to active directory over peered VPC

I have a VPC(VPC1) where my main instances are running, and I have another one (VPC2)specifically for directory service (AD Connector) and a MS AD server running. I have created a VPC peering (which is Active) and all the route tables of these VPC's…
serverstackqns
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AWS EC2 public IP unreachable over IPSec VPN but private IP still reachable

We have a FortiGate (FortiOS 6.0) connected to a IPSec Site-to-Site VPN (Dynamic BGP) on AWS. When the VPN is up, we can only access EC2 using the private IP, public IP no longer works. Only the public IP in the VPC linked to the VPN are…
Joshua
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In AWS VPC subnet id changed

I deleted the default subnet in my VPC and tried to create new. After creating the new subnet it showed a different subnet id, as you would expect. When I try to create subnet group in RDS the same subnet shows the Default subnet's id that was…
Gireendra Sharma
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What are the ways to connect to an ec2 instance in a private subnet?

I have a VPC with private and public subnets and I want to ssh into one of the machines which is in the private subnets. I have heard of the bastion method but want to try others too, please help me with any methods you know, I also have the NAT…
Udit Chugh
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How to privately communicate between ec2 instance?

There is only 1 VPC, and only 1 security group and all EC2 instance are using it. (RED ARROW) as you can see I set ALL traffic with the security group as the source, but somehow the ec2 instance is still not able to communicate - what am I doing…
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Can I use one load balance for my setup?

I have frontend website https://www.example.com/* backend app https://app.example.com/* backend api https://api.example.com/* CDN https://cdn.example.com/* backend services (interal) https://services.example.com/* All servers use port 443,…
001
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OpenVPN from AWS into Office

I'm trying to build an OpenVPN gateway from my VPC -> into the office network. I've successfully set up a VPN client on one of my EC2 instances (let's name it "gateway") and now it has VPN virtual interface "tun0". Now I want to route all…
Michael
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if you have your entire infra on Amazon VPC, what kind of uptime guarantee is a safe committment?

We are a small startup trying to cater to our first customer. At the moment, the entire h/w setup is on amazon cloud (will be moving shortly to VPC). I have to give an estimate to the customer, on what kind of uptime guarantee my company can offer.…
Jay
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