![]() In my case, I’ll associate the private subnet.Ī really bad thing is that you might get a notice that your subnet (availability zone) is not supported. Once the VPN is created, you have to associate a subnet to it. In my case I’ve used the default VPC security group. Finally, choose your VPC, select UDP vs TCP (UDP is preferred) and choose a security group. You’ll also need to have an Internet gateway in your VPC. If you choose not to, then the traffic to the Internet will go to through the tunnel which is slower. If you use split-tunnel, all the traffic that goes to the Internet will use the client’s Internet gateway. Make sure you have Use mutual authentication checked.įor the rest of the parameters, you can choose if you want client logging or not in CloudWatch, then you can choose to use your own DNS servers and most importantly if you want to use Split-tunnel or not. Most likely, you’ll have to find the ID because you can’t figure out which one is a server and client certificate. This subnet shouldn’t overlap with the VPC subnet.įor the authentication, choose the certificate that you just created and uploaded. Name the VPN connection and enter a subnet that will be given to the VPN clients. In AWS go to the VPC console and from there click on Client VPN Endpoints. Do the same for the client part.Īt the end you’ll have something like this. ![]() Under Certificate body paste the pki/issued/server.crt file, under the Certificate private key, paste the pki/private/server.key and under Certificate chain paste the pki/ca.crt. If you have AWS CLI installed you can use aws acm import as described in the link above, if not, just cat out the certificates and paste them in the Certificate Manager console. You’ll have to upload these files to the Certificate Manager in AWS. The keys are under pki/private directory. home/ec2-user/easy-rsa/easyrsa3/pki/issued If you go to pki/issued directory you’ll see your certificates there. …and create the client certificate and the key./easyrsa build-client-full nopass You can accept the default or name your CA as you want.Ĭreate the server certificate and the key./easyrsa build-server-full server nopass Then initialize and create a new CA./easyrsa init-pki In my case, I’ll be using the NAT gateway instance for that (AWS Linux). Find some linux instance with git installed and do the following. In this case, I’ll use mutual authentication with certificates. Another option is to use AD for authentication, but you’ll need AD connector to talk back to a functional AD. Instead you have to follow the instructions given here to generate a server and a client certificate. I need to be able to use my own SSL certificates. So, certificates generated with openssh libraries won’t work. AWS is using RSA certificates because their solution is based on OpenVPN. With the location of the client certificate and key (the location is relative to theĬlient that's connecting to the endpoint).Before we create the AWS VPN endpoint we need to create the certificates. Open the configuration file using your preferred text editor,Īnd add the following to the end of the file. In this case, specify the path to the certificate and key (Option 1) Distribute the client certificate and key to clients along with the Client VPNĮndpoint configuration file. You can use one of the following options. ![]() To add the client certificate and key information (mutual authentication) You cannot modify the client certificate when you use mutualĪuthentication. ovpn configuration file that you download. If your Client VPN endpoint uses mutual authentication, you must add the client certificate and ![]() $ aws ec2 export-client-vpn-client-configuration -client-vpn-endpoint-id endpoint_id -output text> config_filename.ovpn Add the client certificate and key information (mutual authentication)
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