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

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26 views

Amazon VPC NAT performance problems

I have a set of servers inside an Amazon VPC, whose job is to get image files from S3 and process them. The S3 downloads would frequently stall, sometimes for over 2 minutes, but all would eventually ...
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1answer
19 views

How can two AWS VPCs using the same Customer Gateway for a VPN connection

If there are two vendors with seperate VPCs connecting to a single customer gateway for a VPN connection, what are possible configuration options to allow this? As it stands it seems that AWS only ...
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0answers
11 views

Pfsense to AWS VPC via ipsec VPN issues [on hold]

Does anyone have a good guide on how to set this up? I have been trying and keep getting ERROR: error message: '"Could not find acceptable proposal ' in the pfsense logs. I am using IPsec and static ...
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0answers
13 views

VPC DHCP Option Sets Missing Option 3 Router

Maybe I'm missing something, but why can you not set your option "003 Router" in the DHCP configuration in EC2? http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_DHCP_Options.html I'd like ...
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0answers
29 views

Amazon AWS Site-to-Site VPN doesn't allow concurrent pings

I have some strange behaviour with an AWS VPC site-to-site set up and would like some help to understand where my problem might be. Set Up I have a VPC with a private and public subnet, there is a ...
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0answers
44 views

cURL request from EC2-VPC instance (in default VPC) to retrieve RSS feed timing out

I am trying to make a cURL request from EC2-VPC (in default VPC) to retrieve RSS Feed data. # cURL request from EC2-VPC instance curl -Lv -o test_rss.txt http://www.example.com/feed/rss/ The cURL ...
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1answer
37 views

Port 53 in Amazon Security Group

Everything works as expected. This question is for learning purposes only. Using Amazon Security Groups in a VPC. Outbound rules are: 0.0.0.0/0 Port 80 0.0.0.0/0 Port 443 Iptables allows OUTPUT ...
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1answer
24 views

Why Use a NAT Instance? [closed]

Consider the following VPC: Public subnet with app servers and a separate NAT instance. Private subnet with database server. What benefits do we gain by using a stand alone NAT? EDIT: Why use ...
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2answers
23 views

Could I have 2 nat on vpc [closed]

There is a vpc on amazon that has two subnets. The outer one has internet access and the inner one using NAT server to connect to internet. Inner subnet have plenty of servers for development and ...
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1answer
35 views

Connecting to multiple AWS VPCs via a single VPN connection

I'm looking at locking down an existing AWS setup. At the moment, everything is within a single default VPC (test, staging, production) and all within public subnets. My plan is to seperate the 3 ...
3
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1answer
72 views

Internet access from private VPC subnet?

My brain is a little bit fried trying to figure this out but I can't seem to get private subnets to connect to the internet to grab updates for example. Basically all I want is web access for these ...
3
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2answers
209 views

Amazon EC2 VPC: NAT instance download speed performance drop

I have a set of servers inside Amazon EC2 in VPC. Inside this VPC I have a private subnet and a public subnet. In the public subnet I have set up a NAT machine on a t2.micro instance that basically ...
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1answer
60 views

Connecting two AWS Regions: Why not use two Virtual Private Gateways?

I am attempting to connect two AWS regions. AWS's documentation suggests starting up an instance on both sides to run software IPSec (OpenSWAN or StrongSWAN), giving both instances an elastic IP and ...
0
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1answer
195 views

How to SSH to ec2 instance in VPC private subnet via NAT server

I have created a VPC in aws with a public subnet and a private subnet. The private subnet does not have direct access to external network. So, there is a NAT server in public subnet which forward all ...
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0answers
30 views

Access ElasticCache Redis instance within VPC from a classic instance

I have an existing AWS EC2-Classic deployment that I am seeking to add a small Redis instance to. As this only needs to be a tiny Redis instance I elected to use the t2.small size. I've since found ...
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1answer
37 views

What name to use when communicating between AWS subnets

I've been googling this all day and can't quite figure it out. I'm trying to setup a multi-tier application in an AWS VPC, but I'm pretty a rookie at large system network architecture. I'm going to be ...
2
votes
1answer
39 views

What is the advantage of using a NAT plus private sub-net on AWS vs a public sub-net with locked down security groups and ACL?

My Scenario: I have an SQS queue with an auto-scaling group of EC2 workers processing messages from the queue into a database in a different region. Implied Networking Needs for EC2 Workers: Access ...
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0answers
71 views

AWS Elastic Beanstalk : Error creating an auto scaling group without vpc

I have the following error when I try to create a Node.js environment in Elastic Beanstalk : Creating Auto Scaling group named: awseb-e-neymbigw5a-stack-AWSEBAutoScalingGroup-1QX6LF04LAXUF failed ...
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0answers
20 views

Reach non existing AWS VPC subnet from IPSec tunnel

So here is my setup: VPC: 172.16.0.0/16 Subnet 1: 172.16.1.0/24 openvpn server: eth0: 172.16.1.10 tun0: 172.17.0.1 ovpn client 1: 172.17.0.6 ovpn client 2: 172.17.0.10 IPSec VPN is using ...
0
votes
2answers
106 views

Connecting an EC2 VPC with OpenVPN all routed traffic being lost

I'm trying to use OpenVPN on Amazon Linux to connect the local LAN to a VPC on EC2. I have traffic flowing from the OpenVPN instance to any machine on the LAN, but other machines on the VPC are not ...
2
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2answers
93 views

Trouble hitting EC2 AmazonProvidedDNS server over VPN

I have a VPC using the network 10.10.0.0/16, and a VPN server in the public subnet (10.10.0.0/24). The VPN uses addresses in the 10.11.254.0/24 range. When I connect to the VPN, I can access hosts in ...
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1answer
83 views

How can I enable outgoing HTTP/HTTPS requests on an EC2 in a public subnet within a VPC on Amazon AWS

I set up a VPC using scenario 2 from the AWS Docs: http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Scenario2.html I've assigned an Elastic IP to an EC2 instance running in a Public Subnet. ...
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1answer
77 views

How to RDP securely to an EC2 instance?

I have a VPC with a few EC2 instances running Windows Server 2012 that will be used as workstations (in a similar way to WorkSpaces). Right now they are in a public subnet and users can connect using ...
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1answer
32 views

MySQL via SSL on VPC private subnet

Is an SSL connection recommended when connecting to a MySQL database server via a private subnet? SSL provides encryption but SSL causes a performance hit. The MySQL database server only serves ...
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2answers
50 views

how can I add/remove security groups on running ec2 instances which is not included in VPC?

I want to change the security group on running ec2 instance which is not included in VPC. I read that this is possible only if my instance is running in VPC. I tried to create a VPC and include my ...
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0answers
58 views

Limiting VPC access only to SNS confirmations

I have a setup with VPC populated with EC2 instances that have public IP addresses. They are needed mostly for the SNS subscriptions. While subscribing I have to provide a public URL where so called ...
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3answers
102 views

What is the recommended CIDR when creating VPC on AWS?

I have been creating AWS VPCs and I am wondering if there is a recommended CIDR value when creating VPCs. What are the factors that I must consider when choosing a CIDR and does the CIDR value affect ...
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0answers
40 views

How to use linux repository for setup (ubuntu) when box are in aws scenario 2 wizard created private subnet?

I know lots of questions and I have personally tried manual VPC creation multiple times until I gave to the wizard (NAT concept wouldn't stick). I thought the wizard would actually configure ...
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0answers
18 views

How to Reserved AWS VPC DB instance

I want to know how we can purchase Reserved Instance of RDS into VPC. In console their is no option to define the RI we are purchasing is in VPC like EC2. or simply I have to purchase the standard RI ...
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4answers
359 views

EC2 instances in VPC and access to the Internet

I am playing a bit with AWS. I created one VPC (with 10.1.0.0./24 net) and two EC2 instances attached to it. One EC2 has 10.1.0.4, second 10.1.0.5 . I allocated one Elastic IP to VPC and associated it ...
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0answers
133 views

Configuring VPC with Elastic Beanstalk

I followed the standard documentation for AWS, but I am unable to access the EB-created instances via SSH or get a healthy status check on them from the ELB. The relevant setup and security group ...
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1answer
288 views

Do ephemeral ports need to be open on the network firewall in order for nginx and sshd to work properly?

Preamble: So, before I actually ask the question, I'd like to point out that I'm somewhat apprehensive about posting this because even as I'm typing this out it it feels like I'm asking someone to ...
0
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1answer
35 views

Any way to set a private ip within vpc?

I've tried using the --private_ip_address but nothing. Anyone knows if there is an option to set up a specific ip address inside of a vpc? I don't want to setup an elastic one. I have a vpn connection ...
1
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1answer
133 views

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 ...
1
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1answer
413 views

Why I can't ping server on remote network from AWS through VPN

I've created a VPC in Amazon and created a number of subnets - both public and private. 1 of these subnets is a private subnet that has a linux server in it. I've created a virtual private gateway for ...
0
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1answer
560 views

Static IP address for outgoing traffic from AWS autoscaling group

I'm going to have a number of EC2 instances in an Elastic Beanstalk autoscaling group in a default subnet in a VPC. The app on these EC2 instances needs to connect to a third party service who uses an ...
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1answer
69 views

Can I add an extra route to my Amazon VPC?

I have an Amazon VPC set up between AWS and my corporate LAN. Originally, when I set it up, I specified static routing for the following CIDRs: 10.55.55.0/24 10.77.77.0/24 10.99.99.0/24 I set up ...
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4answers
72 views

Best Method to test Opened Ports [closed]

We have a requirment where in we have to test 500+ Port opening rules. So requires a suggest on below points. Which is the best tool to test the connectivity of the ports. Telnet will be sufficient ...
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0answers
63 views

AWS / VPC Multiple Public IP

Thanks for your time in advanced! I am trying to setup some infratstructe in AWS / VPC that utilises a Dev, Test and Prod environment. Everything is complete expect for the networking side in the ...
0
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2answers
1k views

ssh timeout issue connecting to an EC2 instance on OS X

I am new to AWS and not a networking expert but curious to know more about it. I created a VPC with a public subnet only. Then i created an EC2 instance using an Ubuntu 14.04 64-bit pv AMI image ...
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0answers
138 views

EC2 cannot connect to RDS on VPC. Subnet issues?

I was able to deploy our .NET app using the AWS toolkit for Visual Studio. I set up the RDS database manually (MySQL) and deployed the app using elastic beanstalk (set up on VPC). The issue was that ...
0
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0answers
116 views

Can't use a Box in Amazon VPC subnet to connect to the other side of the site-to-site VPN tunnel which is already up

This is what I have done created VPC 192.168.0.0/16 created subnet 192.168.5.0/24 created internet gateway attached internet gateway to VPC created routing table set destination route 0.0.0.0/0 to ...
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1answer
49 views

How to set up routing tables in EC2, so that ping works

I have a wide open security group which I rely on for instances to be able to connect. I also have a private network of 172.*. addresses, as shown here: What do I need to do in order to allow ...
0
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1answer
32 views

Security groups or ACLs?

I'm currently setting up several subnets on Amazon VPC. For example I've got a subnet for the database servers, one for the webservers and one for the load balancers. I try to restrict the access to ...
0
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0answers
37 views

Amazon VPN connection

I am using a netgear FVS336GV2 firewall and I have a comcast business router in front of it. After numerous phone calls with amazon support I have not been able to establish a vpn connection. I am ...
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1answer
51 views

EC2 - MS Server 2012 constantly resetting its own time

I have an EC2 box of instance type m2.4xlarge running Windows Server 2012 Standard in a VPC in US-West-2. The following ports are open inbound: TCP 1433 (MS SQL) TCP 3389 (RDP) UDP 123 (time synch) ...
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1answer
72 views

Openstack Neutron on top of Amazon VPC

Is it possible to run Openstack Neutron within an Amazon VPC and still be able to use all of Neutron's features (GRE mesh network, etc)? I do know about Amazon's ENI and networking tools within a VPC ...
1
vote
1answer
137 views

ElastiCache (redis) for non default VPC

I'm trying to create a Redis node, but in the configuration window, I'm not eble to select a VPC I created. All I see is the default VPC. For that reason the subnets are also only the ones that belong ...
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2answers
2k views

Permanently set MTU on Ubuntu 14.04 machine within an Amazon VPC

I have some Ubuntu 14.04 machines running in an Amazon VPC. When they start, they have an MTU of 9001, but this appears to cause some problems when communicating with other servers which have an MTU ...
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0answers
38 views

how to access Application and Database on AWS as local from other network

Recently I created a micro instance of Amazon EC2 (Windows_Server-2012-R2_RTM-English-64Bit-SQL_2014_RTM_Express-2014.05.20). I configured IIS on AWS and create a database respectively. that is one ...