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.

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16 views

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 spacing: http://...
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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 ...
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Route53 Routing Policies - Best Policy for US-based Ecommerce?

When I look over the documentation for Route 53 Routing Policies they list 7 different policies. How should I pick the right one if I am building out new infrastructure in AWS for a US-based e-...
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How do multi-cloud organizations handle DNS public zones?

What if I have an existing public zone within Amazon Web Services with an existing A record type e.g. bar.com I want to create a subdomain for that existing domain within Google Cloud Platform e.g. ...
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Cloudfront for ELB, automatic redirection

I have a question regarding a redirect (302) that happens when accessing the /admin panel of my Craft CMS application. I've setup CloudFront for my app that runs on Craft 3. DNS points to CF (CNAME), ...
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50 views

kubernetes statefulset - communicate addresses of other pods when pod launches?

Is there some metadata that I can apply, or some DNS that I can query, such that when a pod is started, the addreses of all the other pods in that statefulset will be somehow made available to the ...
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1answer
52 views

Using Amazon VPC provided DNS trough AWS Site-to-Site VPN

Currently I have an AWS VPC connected to our corporate network using AWS Site-to-Site VPN. I can reach my EC2 instances trough the tunnel by their private IP Address. Inside the VPC each EC2 ...
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kubernetes service's dns not resolved inside cluster

i have setup a Service on my cluster, but can access it from pods only with the ip:port that are specified in the "Endpoints:" of the service. Instead i would like to use my-service.default.svc....
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55 views

Terraform: Route53, LB and CDN interdependencies

My team uses Terraform to deploy the necessary infrastructure. Currently, our stack is composed of: AutoScalingGroup fronted by a Load-Balancer, and a Route53 DNS record that points to this LB; We ...
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2answers
76 views

Accessing External REST api From Wthin Kubernetes Cluster

This is my first foray into Kubernetes land... I'm still pretty shaky on how things work and still wrapping my head around some of the concepts so please bear with me there. The application I am ...
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705 views

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: ...
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Access resources on local network from within K8s pod

I have a Kubernetes pod running on a bare-metal cluster. How can I access a resource on the local network from within the pod? For example: From within pod my-pod-abc123 ping 192.168.0.4 Currently, ...
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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 ...
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Docker DNSRR and windows ping

I have a .NET Core application in the linux container running on the linux host - 2 replicas. Additionally I have a container with nginx server as a load balancer (also on a linux). This load balancer ...
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127 views

PiHole on LXC, forwarding port 53

So, I'm trying to install PiHole on an LXC container, on a remote server. However it's not resolving my queries. Here are things which I'm sure of: PiHole has been installed successfully. It is able ...
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2answers
43 views

Issue with custom domain SSL certification

We are working on saas application which is hosted on app.example.com. Now we are trying to give the option to the users where their own domain or sub domain like dev.stack.com point to my application ...
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1answer
274 views

Accessing container by domain name

hey guys I have a docker container A with a domain name attached to it on a host B with a domain name attached to it as well.....how can I access the said container A via A's domain name rather than ...
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1answer
71 views

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'...
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133 views

DNS server with api access

Experts, i have a requirement and wanted to find a tool that will be helpful for me. We have a inhouse tool, that will help developers request/lease a VM for a short duration of time. When the VM is ...
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Can ping service by its DNS x.x.svc.cluster.local but failed pinging by IP

From inside the pod: dig postgres.default.svc.cluster.local ;; QUESTION SECTION: ;postgres.default.svc.cluster.local. IN A ;; ANSWER SECTION: postgres.default.svc.cluster.local. 5 IN A 10.10....
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1answer
325 views

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....
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212 views

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 ...
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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 ...
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1answer
88 views

CI environment being annoyed by DNS system

Our continuous integration environment is suffering from an entry in one of the DNS servers. So now and then ci-system.example.com resolves to a certain static IP. Normally an artifact is downloaded ...
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87 views

Is it required to move a domain to Google DNS in order to use certbot in kubernetes on Google Cloud platform?

Follow-up to What are trusted providers that offer wildcard certificates and associated costs to be used in an Orchestration Platform like Kubernetes? With https://github.com/jetstack/cert-manager it ...
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342 views

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 ...
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81 views

Azure and DNS services

I have a Virtual network (MyVPN) resource in Azure, being a class C network, MyVPN has Azure provided DNS service as DNS servers, so all virtual machines with a NIC connected to this network are able ...