Questions tagged [domain-name-system]
The Domain Name System, usually referred to by the acronym DNS, is a hierarchical, distributed database where the keys are domain names. Questions involving publicly accessible domains should include the real, Fully Qualified Domain Name (FQDN)
12,322
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CosmosDB with private endpoint causes 'request originated from VNET through service endpoint' error?
I have a Node Js app which interacts with CosmosDB and which is deployed to a private AKS cluster. I was able to connect to Cosmos DB through a service endpoint in the Cluster VNET/subnet for Cosmos ...
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Openstack instance not resolving Domain names
Hi I'm someone relatively new to openstack. I setup the cloud using microstack on an Ubuntu 22.04 machine(Fresh install). I used the following to set it up.
Initially when we setup the cloud, we ran ...
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DNS: 'A' record not updating for subdomain
I recently moved my domain from GoDaddy to DigitalOcean and the DNS records updated successfully. Then a subdomain was created on DigitalOcean called cms.eminenceconstructionlv.com. The NS records ...
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Cloudflare DNS keeps redirecting to a wrong site on the same server
I have a strange DNS setting glitch here.
We are rebuilding and migrating two old sites to a new VPS server. They coexist now as below. We use Cloudflare DNS (NO reverse proxy).
Site A: aaa.example....
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How to have dnsmasq resolve local domains, but also use DHCP-provided name servers?
I'm using Pi Hole on my local network, and in addition to providing DNS service, it's responsible for allocating IPs via DHCP, and clients are provided with its IPs to use for DNS.
This all works fine ...
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63
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How do I split DNS routing between a domain and subdomain to 2 different locations?
I have a domain registered with namecheap: ezsaltdelivers.com. I set the custom DNS to route to my Bluehost VPS using ns1.bluehost.com and ns2.bluehost.com. This all works fine. Website up and running,...
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47
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Redirect rule IIS
We have a linux server which is running our old website for example abcd.com. Now we changed our website and it's being hosted on IIS. for example xyz.com. We have a redirect rule setup on linux ...
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439
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DNS Suffix List is getting weird on Windows Server 2022
I had a look on my Windows Server 2022 template and figure out the following things:
If I run ipconfig /all, i can see there's 'test.local' as Global Suffix Search List and there's gael-test.net as ...
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221
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Using mail.example.com for the MX DNS record
I was wondering why I couldn't get the mailing on my domain ("example.com" below) to work.
The hosting provider states that I have to use s18.myexampleprovider.com (having IP 123.123.123.123)...
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Can't get A record redirect to work properly
Okay.. this should be a pretty simple fix but nothing is working, maybe I'm missing something:
A record is set for my blog, sample site here: http://43.130.149.65/?rid=yLmTQxP Cloudflare set for an A ...
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Does adding another TXT record affect SPF authentication?
I am using multiple mail services for my domain sliver.proteuslake.asia, such as Mailjet, Google, and Atlassian. I have already added three TXT records for my domain:
"v=spf1 include:spf.mailjet....
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129
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Creating a non-public DNS alias for a database in Google Cloud Platform (GCP)
I am currently working on setting up a database in Google Cloud Platform (GCP), and I would like to create a non-public DNS alias for it. The purpose of this alias is to provide a more user-friendly ...
google-cloud-platform
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106
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Map subdomain to local IP through public IP
I want to map subdomain to local IPs on my machine to achieve a IP for each of my virtual machines.
I know I can setup a DNS on my own machine but that will only resolve the domain on my own machine.
...
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501
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Why does curl inside Docker to a subdomain in the same Host use private IP address?
Consider I have docker-subdomain.mydomain.com pointing to a website in a Docker container, and host-subdomain.mydomain.com pointing to a website in the Host itself. Both these websites are in the same ...
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Bind9 and Web Server on the same machine + domain setup
I want to ask can I setup for example LAMP with all domains and Bind9 on the same machine ?
If yes, ok.
Now I have one .com domain for example : site.com
Now I want to understand the steps to do to ...
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Using CloudFlare's Load Balancer with Wordpress Multisite Across Domains
I currently have a single Wordpress site, example.com on CloudFlare with Load Balancing. I'm transitioning this site over to a Wordpress Multisite install so it'll host example.com, foobar.com, and ...
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OpenVPN and dhcp-option domain-route for Windows/Linux
I am trying to understand the dhcp-options usage for Windows and Linux (Ubuntu).
There seems to be difference between the implementation.
Using OpenVPN 2.4 server and client, i test on Windows 10 21H2 ...
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.io auth. NS refuses UDP response to dnsviz.net – why shouldn’t I, too?
Seriously, say, I block (return, not drop of course) UDP :53 in to my authoritative nameserver. Resolvers will fall back to TCP and I won’t need any rate limiting against spoofed source IPs. Because ...
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Is it possible to have a capturing group in a cname wildcard expression?
I want to have a wildcard CNAME, but to capture the value of the wildcard:
As an example, a record like this on d1.com:
* CNAME $1.example.com
Would create these mappings:
a.s1.d1.com => a.s1....
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NS not propagating after about 9 days
About 9 days ago I migrated my Cloudflare hosted site to StablePoint's cPanel cloud hosting. The last step I took was removing my CloudFlare's NS records and adding StablePoint's in GoDaddy's ...
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Ubuntu Server Configure Bind9 DNS Server for HTTP request
I have configured a Bind9 DNS Server Forward Zone according to the code below. The way is configured, I only can do SSH using the server name <geoportal.geoint.lan>. I tried adding to the code ...
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Dual dnsmasq name resolution
For resilience, I have two dnsmasq instances providing both local DNS and DHCP. DHCP is configured to offer separate IP ranges from each instance.
I then add IP reservations to the /etc/dnsmasq.d/99-...
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320
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Integrate PowerDNS into Windows DC's DNS, use same domain
We have the following setup:
dc01.our.domain 10.10.10.101
dc02.our.domain 10.10.10.102
phpipam.our.domain 10.10.10.250
We need all our hosts to use our DC's as the primary and secondary DNS servers, ...
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43
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Arista ceos dnsmasq
I'm using Arista cEOS 4.29.2F and I'm trying to use the dns proxy that this device allow.
However, when I do systemctl status dnsmasq on the Arista's bash, its output is:
● dnsmasq.service - SYSV: ...
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answers
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Changing hosting server to a website without having the certificate from the CA
I have been helping a friend who published a wordpress webpage developed by a company he contacted that on production has a really poor performance, to fix this I created a react static web page which ...
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41
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GCP DNS Zone with Shared VPC - No Networks Available
I have host project A which has a couple DNS forwarder zones configured. One of those zones is called example.com. I have a shared VPC set up between host project A and service project B. I want hosts ...
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nslookup output shows result and error within a container
/ $ nslookup aplha-sidecar.pa-beta.beta.cloud
Server: 172.20.0.10
Address: 172.20.0.10:53
Name: aplha-sidecar.pa-beta.beta.cloud
Address: 10.151.62.118
Name: aplha-sidecar.pa-...
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DNS Propagation does not seem to happen
I created a new domain at netcup.de to host a Nextcloud. But for some reason the domain (cloud.stammkirkias.de) does not seem to be propagated. Has anyone of you has a tip, why?
As additional ...
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304
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named-checkconf throwing error on previously functioning forward zone file
I wanted to add a zone to my bind9 configuration (BIND 9.16.1). I have about 20 domains serviced by this name server, most of which have worked for > 10 years.
named-checkconf is throwing errors on ...
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Convert AD-integrated DNS zones to Primary DNS zones
We have inherited a domain with 2008 R2 domain controllers running DNS on them. We want to add Windows Server 2019 to the domain then demote the 2008 R2 domain controllers to just DNS servers. We are ...
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160
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Creating a cloudflare fallback server
I would like to create a fallback DNS server for my cloudflare account.
It accord to me that I have over 70 domains hosted by CloudFlare and my entire business
relays on a mostly free service, It has ...
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66
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WHy is my DNS zone gone? [closed]
I changed my name servers for the domain mmaiato.com from the default GoDaddy name servers to custom NS records as part of my web hosting requirements.
I did not ask for a change of registrar. I did ...
user1017757
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408s and Request Issues on specific sites and devices
TLDR; wired desktop works, wired laptop cant load some sites, mobile phone not working on wifi with same sites as laptop. Noticing 408 and request generation issues but cant pinpoint what/why
Hello, I ...
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Purchase a ssl cert for a domain without a webserver
My company has a legacy web application where there is a link to help documents. The link is https://help.example.com. The Apache server for the domain https://www.example.com decommissioned so only ...
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88
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Certbot Google-DNS Failing from AWS EC2
I am trying to retrieve an SSL Cert using Certbot from an Unbuntu 22 instance on AWS and it keeps getting the following error:
Simulating a certificate request for studiojb-demo.com and *.studiojb-...
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2
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Failed to connect to https://changelogs.ubuntu.com/meta-release-lts. Check your Internet connection or proxy settings
I have recently (past 24 hours) noticed the above message when logging into a headless server over WAN via ssh.
When I try to apt-get update the server, I get "Failed to fetch ... Temporary ...
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1
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OVH DKIM Record Not Found
I set up a DKIM Record on my OVH VPS recently.
The ultimate record generated is as follows (public key overwritten):
v=DKIM1;g=*;h=sha256;k=rsa;s=email;p=...
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2
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507
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Curl has incorrect DNS resolution in a dind context
I am running a docker:20.10.7-dind container.
Into this one I am running a multi containers app.
One container is a back container. Another one is a keycloak container.
I connect on the back container ...
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1
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254
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Docker Embedded DNS returns truncated domain name when doing reverse ns lookup
I've been trying to setup domain name inside a container and check how the embedded Docker DNS deals with those settings.
But I was surprised to see that I was only given a truncated domain name when ...
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1
answer
179
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Why is my naked domain working when I only configured the www?
I set up my domain on heroku/cloudflare. In my heroku settings, my domain is listed as www.my-domain.example. While testing and iterating on configuration, I removed the other entry I had previously ...
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783
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DNS over OpenVPN from PFsense only working when in Full DNS (Use VPN DNS for all traffic)
I configured a DNS Resolver in our PFsense which I also provide as part of the DNS Server list to clients via OpenVPN. Clients can connect via OpenVPN and also resolve local names via the DNS Resolver ...
- 101
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252
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Confused About Why SPF Needs My Email Apps Domain
FYI:
we have a custom domain and we pay for Google Workspace to use that domain for our email/gmail.
i have SPF, DKIM, & DMARC all setup, and a Google tek support person verified it was correct ...
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1
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251
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What is the proper formatting for a classless reverse DNS zone (RFC2317)?
Good Day,
I'm looking for some help in setting up my zone record correctly for a delegated in-addr.arpa zone (classless reverse DNS) (*names and IPs have been changed).
I have the following net-block ...
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1
answer
67
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Are sites normally hosted on www.example.com and example.com?
I don't like the idea of hosting on both example.com and www.example.com
but I can't get my dns setup to redirect www.example.com to example.com. So what I have right now is both of them work and ...
- 115
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346
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rndc showzone returns "rndc: 'showzone' failed: failure" on valid zones
I am running BIND 9.18.12-0 on Ubuntu 22.04 and I have the following problem on more than one installation. I have even installed bind locally with a simple test configuration and I am still seeing ...
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469
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SSL cert fails when subdomain is an A Record of another host
Please excuse any wrong terminology here. If it feels I'm using the wrong term, I possibly am.
Previous scenario:
I have a domain and subdomains DOMAINA, * .DOMAINA on my domain
provider, pointing to ...
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1
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139
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OpenVPN changes DNS settings in Windows Server
On my Windows Server 2022 Standard, I have two network adapters.
The physical network card, which has IP 10.0.22.10/24
The OpenVPN virtual WinTun adapter, which has IP 10.0.30.1/24
Note that I am ...
- 813
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105
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How does the Nginx resolver handle failures?
I am using the Nginx resolver directive to implement an SNI forwarding proxy where Nginx inspects the TLS ClientHello header to retrieve the upstream host and then dynamically resolves the upstream ...
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289
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Can a subdomain point to a different hosting service? [closed]
We own a domain, mydomain.com, which is registered at Ionos and which has a lot of, as yet, unused storage available to it. Our main website URL has been hosted on SquareSpace since 2015, we are out ...
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689
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error DNS_ERROR_ZONE_LOCKED in windows server 2022
I just installed a new DNS server on Windows server 2022 and the problem arises when I try to create a secondary zone on the DNS server. It seems to create the zone fine but then it does not load the ...
