We have an application in the AWS cloud in the private subnet. We can not access internet connectivity due to private subnet. Our requerement is to validate the ping identity token received by our application. Is there any AWS service which we can use to validate the ping identity token in the AWS network without using internent connection?
Thanks in advance.
Related
I would like to configure single sign on for Kibana with Azure Active Directory as the identity provider and embedded SAML authentication method that OpenSearch provides.
However, OpenSearch cluster is running in private subnets and not available publicly.
It seems to be not possible, because cluster's endpoint resolves private ips:
$ dig +short vpc-<cluster-id>.<region>.es.amazonaws.com
10.0.52.81
10.0.52.13
10.0.52.41
While experimenting, I noticed that private cluster in VPC also has dns available with "search-" prefix and resolves public ips:
$ dig +short search-<cluster-id>.<region>.es.amazonaws.com
54.a.b.227
13.c.d.158
13.e.f.17
The documentation is not saying explicitly that SAML authentication method is not available when a cluster resides in private subnet.
Has anyone faced with such challenge?
SAML doesn't require direct communication between the identity provider and the service provider, which is an excellent benefit of using it for SSO. That means that even with your ElasticSearch/OpenSearch application hosted within a private VPC you can still use SAML as long as your browser can communicate with both your ElasticSearch cluster and your IdentityProvider. Essentially, your browser acts as the go-between between your identity provider and your service provider.
Okta has a nice description of how this works here: https://developer.okta.com/docs/concepts/saml/#planning-for-saml
The upshot of this is that, again, your identity provider and service provider require no connectivity between each other, so there are no special considerations for using SAML within a private subnet as opposed to a public one.
I have create elastic service in AWS with Dev Testing(t2 small)
Detials shown below
VPCvpc-7620c30b
Security Groups
sg-7e9b1759
IAM RoleAWSServiceRoleForAmazonElasticsearchService
AZs and Subnets
us-east-1e: subnet-2f100a11
How to access my VPC endpoint https://vpc-xxx.us-east-1.es.amazonaws.com access from outside.
Kibana is below : https://vpc-xx.us-east-1.es.amazonaws.com/_plugin/kibana/
I am not running on Ec2 instance
From docs:
To access the default installation of Kibana for a domain that resides within a VPC, users must have access to the VPC. This process varies by network configuration, but likely involves connecting to a VPN or managed network or using a proxy server.
One way of setting up the proxy server has been explained in detail in the recent AWS blog post:
How do I use an NGINX proxy to access Kibana from outside a VPC that's using Amazon Cognito authentication?
The instruction could also be adapted to not using Congnito.
Extra links, with other, probably easier setup with ssh tunnels:
How to connect to AWS Elasticsearch cluster from outside of the VPC
How To: Access Your AWS VPC-based Elasticsearch Cluster Locally
SSH Tunnel Access to AWS ElasticSearch Domain and Kibana | Howto
How can I use an SSH tunnel to access Kibana from outside of a VPC with Amazon Cognito authentication?
VPC endpoints are not accessible directly from outside of the VPC.
If you want to allow this you will need to use a proxy instance in your VPC that can connect to the VPC endpoint, then proxy all requests through the EC2 instance in order to access the endpoint.
More information is available here.
We have a application running in Windows EC2 and we dont have any ELB or ALB for the application.
Can we use AWS private CA on this?
Please refer this URL:
https://docs.aws.amazon.com/acm/latest/userguide/acm-services.html
As per this URL, we must use Elastic load balancing/Amazon cloud Front/ AWS Elastic Beanstalk/ Amazon API Gateway AWS CloudFormation services to integrate AWS certificate manager. We are not using any of these services in our application.
Thanks,
Subhadeep
ACM Private CA certificates can be used with any platform, inside or outside of AWS, but this service creates a private certificate authority -- for use in a private infrastructure, like a corporate network.
This is not something used for public web sites.
A private CA handles the issuance, validation and revocation of private certificates within a private network (i.e. not the public internet).
https://aws.amazon.com/certificate-manager/faqs/#acm-private-ca
AWS Security Token Service (STS) can only be accessed from the Internet, correct me if I am wrong.
My customer would like to access DynamoDB from an EC2 instance in the same AWS account.
The EC2 instance is in a private subnet without internet access. Does it mean EC2 instance cannot leverage STS? Is there a workaround for this? We try to avoid using permanent access key and secret key to access resources in AWS.
Not only STS, you need internet access to use any AWS service. For STS, the endpoint https://sts.amazonaws.com should be accessible. There are endpoints for each AWS service. The only service that doesn't need internet access is the metadata server http://169.254.169.254
If your security policy permits, you can add an internet route to your subnet through a NAT. You can let the instance access only certain IP address by setting the outbound rule in the security group.
Start from 2020 Dec onwards, you can use sts VPC endpoint in private subnet which doesn't have outbound internet access.
I am new on AWS. I've been hosting an ASP.NET Web API on an AWS EC2 instance. I would like to access this web api securely through AWS API Gateway. I configured the AWS API gateway service successfully, however EC2 instance accepts and responses external api requests which are coming directly from the internet.
My web api should only accept and response aws api gateway requests.
What is the correct firewall rule(s) in security group of my EC2 instance? Or do I need to create a policy in AWS IAM user.
This configuration shouldn't be restrict aws internal traffic in order to allow access aws api gateway requests.
Thanks
You need to assign you EC2 instance under a security group. And configure the security group with inbound rules. Which will allow you to white list IP range, port, protocol etc.