Questions tagged [aws-vpc]
The aws-vpc tag has no usage guidance.
16
questions
7
votes
2
answers
7k
views
In AWS, can an EC2 instance be in more than one VPC at the same time?
I think the answer is no, but I want to make sure that I'm not missing anything. Is it possible for an EC2 instance to have IP addresses in more than one VPC at the same time?
I tried creating 2 VPCs, ...
- 7,478
3
votes
1
answer
590
views
AWS NAT Instance Setup
This question was originally posted to stack overflow, they suggested I repost it here (https://stackoverflow.com/questions/76715004/aws-nat-instance-setup).
I am currently learning the AWS cloud and ...
- 31
1
vote
1
answer
2k
views
How to get public static IP of my AWS VPC?
My services are hosted in AWS VPC. I use VPN to access my servers. For using a third party service I need to whitelist my public static IP address on their site. How can I get my public static IP ...
1
vote
0
answers
89
views
Is it possible to use both VPC peering and Transit Gateway?
I currently have 2 VPCs with an InternetGateway each VPC1 and VPC2.
I need VPC2 to use VPC1's public IP.
I'd rather modify VPC1 as little as possible.
There is a lot of traffic between these 2 VPCs.
...
- 181
1
vote
0
answers
630
views
AWS client VPN can't resolve DNS server
I am swapping out a wiregaurd vpn running on an EC2 instance with a AWS client VPN so that i can use MFA with google. I have most of what i want in place, but i am stuck on setting up the VPN to use ...
- 111
0
votes
1
answer
519
views
Can't connect from AWS EC2 instance to AWS SES endpoint
Disclaimer: my AWS networking skills are basic.
I have an EC2 Windows server instance in a private subnet. I connect via a VPN. FOR TESTING I put it in a Security Group that allows all IPV4 TCP ...
- 101
0
votes
0
answers
17
views
How to specify Security Group when creating VPC in AWS web console UI
I created a security group and then wanted to create a VPC and specify this VPC to use this existing security group. I couldn't find an option in AWS' current VPC form to specify the security group. ...
- 143
0
votes
0
answers
127
views
Unexpected behavior with AWS Firewall and Default Stateful Rules
I have configured an AWS Firewall in our testing account, pretty much following the standard setup procedure as documented by AWS. From our private subnet, outbound traffic heading to the internet is ...
0
votes
1
answer
48
views
Domain sharing to another server
We have domain that registered in a cloudflare by alb dns CNAME record and hosted in windows server as prod server.
on other hand we also had an ubuntu server infront of windows server.
My question is ...
0
votes
1
answer
82
views
AWS cannot connect to any T3 instance, vpc config valid (I think)
I created a new VPC ca-central. I followed the same procedure as everywhere else:
New VPC (this created acl which is wide open)
three subnets, one for each availabiltiy zone, CIDR spaced out properly
...
- 141
0
votes
1
answer
96
views
How to Include Elastic IP on EC2 on my VPN
I am able to ping and access SSH on my EC2 using Private IPs.
However I want to access the SSH using the Public IP ( elastic IP ).
Is that possible?
note: my VPN step up and EC2 is under 1 VPC
I have ...
- 1
0
votes
1
answer
361
views
Seamless switch from NAT GATEWAY to VPC gateway
My team is currently burdened by the NAT Gateway costs and we would like to switch over to VPC Gateway endpoint to reduce the costs associated with all the EC2-S3 communication.
at the same time,
We ...
- 1
0
votes
1
answer
400
views
How do I configure AWS EC2 instances to selectively bypass default DNS resolver in all regions?
I have a network of AWS EC2 instances. Most of them are using the default VPC's DNS resolver to prevent exfiltration and to resolve internal domains (using a custom TLD). That all works fine.
However, ...
0
votes
0
answers
383
views
Using Route 53 DNS name to communicate between ec2 instances within a single subnet
I have 3 ec2 instances in a single vpc and subnet.
Each ec2 instance has an elastic ip and a route 53 domain name pointing to it. The domain name is set as the host name in Amazon Linux 2. I am able ...
- 1
0
votes
1
answer
240
views
AWS middlebox appliance routing doesn't work
I have installed and configured EC2 instance with routerOS which I want to use as main point of connection for branch networks. It has 1 interface, resides in subnet 172.20.1.0/24. Subnet 172.21.1.0/...
0
votes
1
answer
39
views
Routing to custom remote destinations from VPCs through dynamic BGP VPN
I have a dynamic BGP VPN between a VPC and an on-premise site (on-premise uses vyOS router/vpn concentrator).
Servers in the VPC and on-premise subnets can communicate directly through he VPN.
The on-...
- 249