All Questions
85
questions
0
votes
0
answers
112
views
dns problems in self managed aws ec2 cluster with aws-vpc-cni
I'm new to k8s and I've been trying to learn it. I faced a problem with trying to setup aws-vpc-k8s-cni on my fresh k8s cluster with coredns. Here's the problem in detail.
Cluster & Network ...
- 131
5
votes
2
answers
1k
views
Thousands of incoming HEAD requests - best way to handle with EC2?
I had unusually high https traffic recently from a couple of IP address with agents masquerading as Windows clients. I blocked the range via 'deny' inside of .htaccess (Apache 2.4)
I'm still getting ...
- 475
0
votes
0
answers
110
views
AWS EC2 networking
I've been trying to understand how exactly networking works for EC2 instances, more specifically I'm coming from on-prem infrastructure where I had dedicated networking devices (switches/routers) ...
0
votes
1
answer
244
views
AWS instance gateway using Amazon Linux
I'm trying to create a gateway on an aws ec2 amazon linux machine so that a worker machine without access to the internet can gain access via the gateway. Then I will install a server on it and ...
- 1
0
votes
1
answer
53
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 ...
1
vote
0
answers
742
views
Configure Secondary Interface on EC2 using Ubuntu 22.04
I have launched a EC2 instance having OS Ubuntu 22.04 which has a primary interface ens5
I have attached a secondary Interface ens6.
This is the output of ifconfig -a
root@ip-172-31-7-213:/home/ubuntu#...
- 145
0
votes
0
answers
239
views
Cannot Ping Primary interface after configuring second INT on AWS
I have an Amazon EC2 Instance running Ubuntu server 16.04
I want the EC2 to have two network interfaces. After configuring the secondary interface. I cannot ping my primary interface from my other ...
- 1
0
votes
0
answers
435
views
In AWS how can I route outbound EC2 traffic through different Internet Gateways depending on the payload?
I have a weird scenario where I need to route certain outbound traffic from an app hosted on EC2 through different regional IP addresses.
Long story short we have 2 clients with APIs that our app ...
- 103
0
votes
1
answer
255
views
Amazon Web Service (AWS) EC2 instances: Unstable network bandwidths with long-distance connections
I'm trying to deploy a data processing system over a wide area covering multiple regions of AWS. Before doing this, I've been profiling the network connections over the variety of distances, but I've ...
- 1
1
vote
0
answers
1k
views
How Does AWS Implement SrcDestCheck (Source / Destination Checks)
The documentation for setting up NAT Instances calls out that you must disable Source / Destination Checks on your NAT Instance for it to work. From https://docs.aws.amazon.com/vpc/latest/userguide/...
- 23
0
votes
1
answer
302
views
AWS NIC configuration
I'm trying to setup a EC2 instance for a specific use case. In that i will need 2 ENI with publicly exposed IP address. (Both should be pingable)
I've done following steps so far:
Attached 2 Network ...
- 1
3
votes
2
answers
27k
views
Why am I getting "Connection refused"?
I am running a hello-world http server on an ubuntu EC2 instance, let's say, myurl.com. I am unable to curl it from my client:
$ curl myurl.com:4296
curl: (7) Failed to connect to ...
- 139
2
votes
2
answers
4k
views
EC2 instance doesn't show up in AWS Systems Manager
I am trying to create an EC2 instance (Amazon Linux, so I shouldn't have to configure the SSM agent as it should be autoconfigured) in a private subnet, and want to be able to SSH into it. According ...
- 139
0
votes
0
answers
52
views
Issues connecting to aws ec2 instance behind eip
I have an ec2 instance on which I'm running a dev server via parcel index.html --host 0.0.0.0 that ultimately listens on 0.0.0.0:1234. Before creating and associating an eip to my instance, I wanted ...
- 101
0
votes
2
answers
1k
views
SSH deny rule is allowing me to SSH?
I am learning AWS VPC where I am assigning NACL Inbound/Outbound Rules as below: Right now i am doing for All IPs
Rule # Type Allow/Deny
100 All Traffic Allow
200 SSH ...
- 23