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Questions tagged [dns]

The Domain Name System (DNS) is a hierarchical naming system built on a distributed database for computers, services, or any resource connected to the Internet or a private network.

The Domain Name System (DNS) is a hierarchical naming system built on a distributed database. It translates domain names meaningful to humans into the IP addresses associated with the networking device. For example: www.stackoverflow.com => 64.34.119.12

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Kubernetes on k3s can't resolve domains from custom dns server (fritz.box with dnsmasq)

I have a dns server running at 192.168.0.19 for custom domains like .fritz.box. Having a single node cluster on k3s, Rancher was installed using a subdomain server2.fritz.box using this command: helm install rancher-latest/rancher \ …
Lion
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Blue/green deployment with micro services and DNS

Currently, we have on our test environment an ECS Cluster with micro services deployed. All micro services are talking to each other through Route53 DNS CNAMEs like service1.company.com, service2.company.com, etc. Here is a simplified schema of the…
Kaymaz
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Are Route 53 DNS records aliasing ELBs guaranteed for their lifetime?

Given a Route 53 DNS record aliasing a (classic) load balancer, and the potential for the load balancer ip to change: Is it possible for the DNS record to guarantee that the provided ips are valid for the record's lifetime? If so, is there a…
user3233089
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Point docker container DNS to specific port?

I was wondering if it was possible to assign the DNS server a docker container is querying (via docker run --dns, or otherwise) to be on a specific port, something other than 53? I had built a custom python based DNS server for a specific use case…
Klaus
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service-to-pod communication is broken in kubernetes

I have an in house 5 node cluster running on bare-metal and I am using Calico. The cluster was working for 22 days but suddenly it stopped working. After investigating the problem I found out that the service to pod communication is broken while all…
AVarf
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Sub-subdomain Domain name for different environment

If we have two components in a API api front-end and we have three environments staging qa development and a domain name superproduct.com What would be the most logical domain…
David
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docker build throws UnknownHostException with jenkins dind slave + kubernetes plugin

So Jenkins is installed inside the cluster with this official helm chart. And this is my installed plugins as per helm release values: installPlugins: - kubernetes:1.18.1 - workflow-job:2.33 - workflow-aggregator:2.6 -…
Abdennour TOUMI
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Docker Containers fails to DNS resolve on subnet 10.0.2.0/24

The ultimate problem I am facing is this: [root@527eb70c04c9 my-service]# ping google.com ping: google.com: Name or service not known Inside my container, I can't resolve public domains, although the network is defined as not internal: networks: …
Worp
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Rancher, Load Balancing and own domain

I have a question about rancher. I'm running my rancher on aws. I have created a new cluster with two nodes (workers) and I have deployed my docker images. Now I wanted to add Load Balancer, but I don't want to use xip.io domain but my own. I added…
Mariusz
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DNS hosting choices - how to programmatically update DNS settings

I manually update the DNS settings at the registrar for my domains, such as https://domains.google.com/registrar What are people using to automate updates to DNS settings? which registrars have an API ? Specifically I need to manually update :…
Scott Stensland
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Debug Docker DNS

In a stack with higher number of services it seems that Docker DNS does not work anymore which leads to effects that container's names are not known even to themselves. While I have filed this bug, I wonder whether there is a way to debug this more…
Ta Mu
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Apex domain to point to an Openshift ROSA application

We have a ROSA (Openshift on AWS) cluster, working fine with all kinds of domains except one, which happens to be an apex of the Hosting Zone in our Route53. So, say, the domain is example.com and it's registered in AWS with the name servers - all…
ptrk
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What are the advantages of using AWS nameservers as opposed to servers provided by other registrars?

I am transfering a domain name from namecheap to aws route 53 service. AWS provides you with three options when transfering: Continue to use the name servers provided by the current registrar or DNS service. Import name servers from a Route 53…
YulePale
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How to locally resolve host name starting with variable slug?

An app, running on my laptop in development mode, comprises several Docker containers, one of which runs a Django web app. This web app expects to receive HTTP requests using a hostname with a variable leading part, e.g. "test-account.survey.com",…
John Ramsden
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Does Kubernetes internal networking keep traffic to co-located Pods where possible?

In Kubernetes, if I run a Service Foo on every Node, and also Service Bar on every Node, i.e. with DaemonSets. If a Pod from Service Foo needs to make a request to Service Bar, does Kubernetes networking magic optimise things so communication will…
Tom
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