I am trying to setup my Lambda to access my Mongo server on one of the EC2 instances in VPC. After selecting all the subnets and security groups, I get the following error when saving "You are no...

What is Destination and Target in Route table? I can see Destination and target can be configured to Internet gateway, is there any other use case ?

Can someone explain exactly how CIDR blocks work and how it translates into 0.0.0.0/32 for example? Please use laymen’s terms or perhaps even an analogy to something not network related. Can’t seem...

I am trying to invoke a step function from a lambda which is inside a VPC. I get exception that HTTP request timed out. Is it possible to access step function from a lambda in a vpc? Thanks,

I am trying to create VPN tunnel from VPC to office location. I have created Virtual Private Gateways and when i try to attached to VPC it says Error VPC vpc-xxxxxxxx is currently attached to the...

From a regular ECS container running with the bridge mode, or from a standard EC2 instance, I usually run curl http://169.254.169.254/latest/meta-data/local-ipv4 to retrieve my IP. In an ECS c...

I created two subnets without any preference of the availability zone(AZ). So, now I have two subnets in one AZ. I know that I can extend the VPC and create new subnets but I simply want to move a ...

I have Public and Pvt Subnets in my VPC. I have some services running on EC2 in Pvt subnet, that needs to be accessed by external/mobile resources. How do I do this- is VPCLink and NLB the way to d...

I am new to AWS and not a network admin, mere a developer, and need your help. I am unable to connect to my aws RDS (mysql) from my lightsail ubuntu instance. when trying to connect, it just wait ...

When we create an EC2 instance we can specify a specific VPC and a subnet of it. But when we create a S3 bucket, we only have the option to select a specific region only. Does this mean that the S3...

I have a public subnet in AWS and I have 3 instances in it ... WebApp01 (Elastic IP - 54.23.61.239 for example) WebApp02 (Private IP - 192.168.0.24) WebApp03 (Private IP - 192.168.0.25) And my ...

I have an application running in an EC2 instance in a private subnet (to add extra security), receiving traffic directly from an internet-facing NLB that is associated to the public subnet. I have...

I've recently setup OpenVPN server on an AWS EC2 instance in order to connect my office to the AWS VPC environment. I'm using TunnelBlick as the VPN client and all is good! I can ssh to the ...

I have private Subnet inside VPC, with a routing table as follows: XX.X.0.X/16 local 0.0.0.0/0 nat-0XXXXXXXXX With above configuration AWS CodeDeploy fails with error as Error code: HEALTH_CONST...

The AWS EC2 Security Groups documentation mentions that "Security groups for EC2-VPC have additional capabilities that aren't supported by security groups for EC2-Classic" but the Security Groups d...