Skip to main content

How to give Internet Access to a Private Subnet non Public IP EC2 instance without NAT Instance.


In some cases we couldn't use public ip address not even an elastic ip for your ec2 instance , for example PCI audit related situations. But you should give internet access to your ec2 app servers to sent notification or alert mails to outside. In that case you can use the NAT Gateway for doing this.

1. First Create a NAT gateway in VPC section.

         While creating the NAT Gateway, you should give the subnet as the Public Subnet having route table target as an "Internet Gateway".

2. Now edit your route table associated with your private EC2's subnet and make the target as "Nat gateway ID"

That is all , now you will get internet access to your private EC2 instance, without public ip or elastic ip and having only Private ip in the instance description session.


Comments

Post a Comment

Popular posts from this blog

Password reset too simplistic/systematic issue

Some time when we try to reset the password of our user in linux it will show as simple and systematic as below: BAD PASSWORD: it is too simplistic/systematic no matter how hard password you give it will show the same. Solution: ######### Check if your password is Ok with the below command, jino@ndz~$ echo 'D7y8HK#56r89lj&8*&^%&^%#56rlKJ!789l' | cracklib-check D7y8HK#56r89lj&8*&^%&^%#56rlKJ!789l: it is too simplistic/systematic Now Create a password with the below command : jino@ndz~$ echo $(tr -dc '[:graph:]' 7\xi%!W[y*S}g-H7W~gbEB4cv,9:E:K; You can see that this password will be ok with the cracklib-check. jino@ndz~$ echo '7\xi%!W[y*S}g-H7W~gbEB4cv,9:E:K;' | cracklib-check                 7\xi%!W[y*S}g-H7W~gbEB4cv,9:E:K;: OK Thats all, Thanks.
Post a Comment
Read more

Nginx Ingress controller setup in K8S MultiNode Cluster with HA-Proxy as External LB

https://github.com/nginxinc/kubernetes-ingress/blob/master/docs/installation.md Pre-requisites: ############### >> K8s cluster setup with 1 Master and 2 Worker nodes. >> Deployed an application with Deployment name "client-sb" >> Also you need to create an HA-proxy server by spinning an Ec2 instance. After login the Ha-proxy server. # yum install haproxy # vi /etc/haproxy/haproxy.cfg delete everything after the global and defaults starting from "Main front-end which proxys to the backend" paste the below code in the end of the file: --------------------- frontend http_front   bind *:80   stats uri /haproxy?stats   default_backend http_back backend http_back   balance roundrobin   server kube 10.0.1.14:80   server kube 10.0.1.12:80 --------------------- # systemctl status haproxy # systemctl enable haproxy # systemctl start haproxy 1. Create a Namespace, a SA, the Default Secret, the Customization Confi...
Post a Comment
Read more

Running K8s cluster service kubelet with Swap Memory Enabled

For enabling swap memory check the below link : https://jinojoseph.blogspot.com/2019/10/enable-swap-memory-using-swapfile-in.html # sudo vi /etc/systemd/system/kubelet.service.d/10-kubeadm.conf Add the KUBELET_EXTRA_ARGS line as below: ---------------------------------------- Environment="KUBELET_EXTRA_ARGS=--fail-swap-on=false" ExecStart= ExecStart=/usr/bin/kubelet $KUBELET_KUBECONFIG_ARGS $KUBELET_CONFIG_ARGS $KUBELET_KUBEADM_ARGS $KUBELET_EXTRA_ARGS Now kubelet.service changed on disk. Run 'systemctl daemon-reload' to reload units # sudo systemctl daemon-reload # sudo systemctl restart kubelet # sudo systemctl status kubelet That is all cheers :p
Post a Comment
Read more