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
questions
3
votes
1
answer
544
views
DNS settings not saving or propagating
As of last week I am struggling connecting my squarespace site to my domain managed by godaddy. I Have various other sites for which this process went just well.
My new domain: pawfectstay.be is ...
- 31
1
vote
0
answers
80
views
Cloudflare DNS Resolution
DNS newbie here trying to understand the DNS setup for one of our domains.
Will call it example.com.
So the DNS host is Azure DNS. And there is an A record in Azure that points to a Cloudflare server ...
- 11
0
votes
1
answer
59
views
Mail server running on a subdomain - how could email acceptance by other servers be influenced by dns records for different ips?
I started to run a self-hosted mail server which I want to be reachable via a subdomain only. I have an A record for mail.sub.domain.tld and an MX record for sub.domain.tld /edit: which points to mail....
- 23
0
votes
1
answer
44
views
Building a nameserver, Google won't recognise our records?
We're building an experimental nameserver in Python, using the standard dnslib library.
It appears to work, we have delegated a test subdomain, midsummer.beltaine.co.uk to it, and it serves the ...
- 129
1
vote
0
answers
110
views
DNS not resolving for one website only
I'm running into a really bizarre issue that has me banging my head against the wall. Hoping someone here can point me in a direction I haven't explored yet.
I do IT work for a small insurance company....
- 11
-1
votes
1
answer
321
views
Docker Container DNS slow (~ 4 seconds) with DNS resolver as container
DNS resolution inside all of my Docker containers is consistently slow (slightly more than 4 seconds). From the host, DNS queries are fast, as well as on the rest of my network.
I must admit I did not ...
- 1
3
votes
2
answers
381
views
App Engine Adding custom domain verification failed despite main site ownership verified
I am trying to veryfy a subdomain to configure a server side GTM container.
The property is verified on the search console
However when I click refresh domain, I still get "Your domain hasn't ...
google-cloud-platform
0
votes
1
answer
526
views
openssl s_client works with IP, but does nothing with domain name
I recently-ish set up an internal (firewalled) apache2 web server that exactly one of my colleagues cannot reach for some reason (PR_END_OF_FILE_ERROR, indicating something's wrong with the handshake/...
- 111
4
votes
2
answers
418
views
How widely are SRV records supported?
I've recently learned about DNS supporting SRV records, which identify what port, and what protocol should be used for a given service. For example _http._tcp.example.com SRV should return a port, and ...
- 142
0
votes
0
answers
159
views
Resolving CNAME to local IP fails inside Docker container
So I've set up a local server in my LAN. Connections from outside my network are not allowed. Still, the server should be reachable under my public domain (example.org).
So I've set a CNAME record ...
- 191
0
votes
1
answer
59
views
BIND "notify" packages over NATted networks possible?
I got a very specific issue: We got two DNS servers with networks being NATted to each other. Example: DNS master has 192.168.1.1 and it's NATted to another subnet 192.168.2.x using the gateway 192....
- 1
0
votes
1
answer
118
views
Is it possible to have conditional Route 53 DNS records based on URL path?
Problem: migrating support articles from HelpScout to Zendesk. I want to set up a list of 301 redirects.
Example:
301 Redirect:
https://support.domain.com/hs/article/1234-Problem-Help
to:
https://...
- 101
0
votes
2
answers
68
views
point CNAME Record to multiple wildcard A Records
I am trying to point my cname to my wildcard FQDN which has multiple A-Records.
Dig Output:
;; QUESTION SECTION:
;access.domain.intra. IN A
;; ANSWER SECTION:
access.domain.intra. 3600 IN ...
- 3
0
votes
0
answers
30
views
AWS Route53 naked domain doesn't work
I bought my domain (banuka.com) from the Namecheap. And created an AWS Route53 public hosted zone.
And also I added the Nameservers copied from that above hosted zone to the Namescheap DNS servers.
...
- 181
0
votes
0
answers
25
views
Connection error to my server from multiple ISP's - mobile data works fine
I have a mailcow server that's been running with no problems for a couple of months (on debian 11 - mailcow.ruonline.com.au), but seemingly out of the blue, lots of my clients have started calling me ...
- 1
0
votes
1
answer
34
views
DNS hard to reach after reboot RHEL7
Two weeks ago, two of our four RHEL7 VMs running on same Openstack infrastructure rebooted unprompted and unnoticed. May be externally triggered.
Ever since, all services relying on DNS are unreliable ...
- 111
0
votes
1
answer
239
views
Using CNAME to point to other website does not work
I have below domain name registered on Hostinger
himanshupoddar.tech
I added CNAME record to point my domain to another website "okcredit.com"
But it does not work and I am still not being ...
- 113
0
votes
1
answer
57
views
Understanding DIG Output for electronics.stackexchange.com
I am trying to understand the workings of the DNS. When I do dig electronics.stackexchange.com, I get the following response (truncated at the bottom for brevity):
; <<>> DiG 9.10.6 <&...
- 101
0
votes
0
answers
30
views
Users can access a certain website on our network but they cannot log in. They can log in on our second network and on any external network
it is my third month as a junior sys admin and my senior is on vacation.
Starting this past Tuesday, users have not been able to log in to a website while on our primary network. The web page loads ...
0
votes
2
answers
61
views
How do sites like workpress.com assign all users their own subdomain?
How does workdpress.com achieve this, where everyone, get a subdomain, like chooseName.wordpress.com after a new user sign up and when the subdomain has not been chosen?
0
votes
1
answer
122
views
Local Kubernetes Dns failure on one of three worker nodes
I have a problem with my Kubernetes on-premise cluster created with kubespray.
I don't know why, but the dns resolutions is not working on one of my three nodes.
I try to mount a debug container to ...
0
votes
2
answers
163
views
Changing SPF record from ~all to -all where employee inboxes are with Google and Amazon SES is used for website transactional emails
I'm interested in moving from ~all to -all in my SPF record in order to lock down my domain emails a bit more, but I want to know what the impacts might be (I do understand at ~ is SOFTFAIL and - is ...
- 165
0
votes
1
answer
166
views
Reverse DNS propagation and caching
I set up a VPS (Ubuntu 22.04, at Contabo in Germany) yesterday. Unfortunately, I got the reverse DNS entry incorrect (I entered example.org instead of example.uk). I spotted this quickly, and ...
- 191
0
votes
0
answers
73
views
Public IP on KVM VMs and DNS setup on host machine
I'm using KVM to create two VMs for hosting NMS servers for the company's devices. I want to manually assign a public ip to both VMs and the host machine (Ubuntu 22.04 desktop [although I mostly use ...
0
votes
0
answers
145
views
Setting up Domain Trust over NAT?
Short summary of our situation.
I have two separate domains that we need to establish a one-way forest trust between. Domain 1 has native subnet of 172.18.xx and Domain 2 has native subnet of 10.162....
- 1
-1
votes
1
answer
211
views
DNS server hosted in docker
I am trying to follow tutorial on how to setup DNS server hosted as docker image.
But of course I am facing problems.
I have setup named.conf file as below. But i am completely uncertain what IP ...
- 111
-1
votes
2
answers
57
views
I need to hit website with server_ip/path_to_index.html
I am testing @media statements in a locally hosted website I am building but for the life of me can't hit the site with site_IP/virtual_host_name.
If I have access to the hosts file I simply add (site ...
0
votes
1
answer
74
views
Difference in Google MX record IPs and upper-lower case hostnames
Two different domains, both using Google Workspace.
Why are there different IPs for the same hostname, i.e. ASPMX.L.GOOGLE.COM and aspmx.l.google.com?
Does this have to do with the upper/lower case ...
- 143
-5
votes
2
answers
146
views
Troubleshooting corporate DNS
I'm on a corporate network with various mysterious lockdowns including ZScaler
My current issue is that when I try to connect to xyz.databases.windows.net (Azure SQL database) I see these symptoms:
...
- 155
1
vote
1
answer
243
views
Port forward DNS using pf
On OpenBSD, I can successfully & transparently forward ports 80 and 443 to services running on custom, unprivileged ports using the following /etc/pf.conf:
tcp_pass = "{ 22 80 123 443 }"
...
- 810
0
votes
1
answer
410
views
NGINX reverse proxy responds to IP but not domain name
I have an nginx reverse proxy setup to point to my nodejs app. When I enter the server IP in the search bar, the website pulls up as expected. When I enter the domain name I get an ...
- 101
1
vote
1
answer
89
views
How to change A record in DNS and keep email working when MX record point to the domain itself
For my client, I'm migrating domain to point to a new website server. In order to do that, I'm changing A records to point to new server IP. After such change, client has lost possibility to send e-...
0
votes
0
answers
340
views
DNS resolution is not working in k8 pods after k8 version upgraded to v1.25
We have upgraded our Kubernetes version from v1.24 to v1.25. We have used kubespray (version v1.2.21) for cluster creation. The cluster is upgraded successfully to v1.25. But once we deploy pods, not ...
- 101
0
votes
1
answer
33
views
Why do DNS tools report glue record problems even though they look right?
I've been bashing my head to a bloody pulp trying to figure this out. I have my custom nameservers setup at my registrar. I have the nameservers assigned to the domain. The nameservers have the ...
- 209
0
votes
0
answers
139
views
Alias custom domain to GitHub repository for git clone
What I'm trying to do is setup a custom domain name so that it can be cloned as a git repository using git clone.
For example,
$ git clone https://my-domain-name.tld/ # would be cloned into my-domain-...
- 101
0
votes
0
answers
133
views
Win11 - DNS lookup is slow when connected to AWS VPN
I need to connect to works VPN using AWS VPN Client v3.5.0, but when I do this I get severe lag on DNS lookups for public domains
This does not happen when the VPN is disconnected and it is not an ...
- 141
0
votes
1
answer
197
views
Private IP being used in public DNS [closed]
I recently was working on a problem for a user at work. The basic problem was they had a bank scanner that connects directly to the bank but it wasnt working on our network.
The domain name was usb....
2
votes
0
answers
118
views
How do I find what domains are using my glue records?
My domain has two (long-since-disused by me) glue records. When I try to delete them, I am told by the domain-registration system that I can't because they are 'in use'. But they're not in use by any ...
- 21
1
vote
1
answer
198
views
DNS: Exclude subdomain from wildcard record
I would like to match all subdomains to return an A record (this works) but I would like to exclude one particular subdomain from resolving (not sending an A record at all).
*.example.com. IN ...
- 195
0
votes
1
answer
56
views
Better option for DNS for large no of records [closed]
I have a app and say in the app new objects can be created. When ever a new object(eg: say hello) is created i want the url hello.example.com/hi to point to a specific IP always.
Found there are three ...
- 101
0
votes
1
answer
49
views
If I relocate my website's server (changing the IP in the process), will my users be able to access it under the same domain?
If I first publish my website from my server which is in city A, and then move this server to city B (which I expect to change its IP address), will the website's users still be able to access it ...
- 3
1
vote
1
answer
109
views
How do you set an A record for any shared host?
I'm trying to use an A record to redirect my domain to a separate domain that I own. This process has worked fine with DigitalOcean Droplets -- I just add their IPv4 address in the A record and the ...
- 13
0
votes
0
answers
118
views
Error Configuring DKIM on Bind BIND 9.9.4-RedHat-9.9.4-61.el7_5.1 (Extended Support Version)
I'm trying to configure a DKIM record on my DNS Server running BIND 9.9.4-RedHat-9.9.4-61.el7_5.1 (Extended Support Version), but I'm getting the following error:
10:36:40 ns1 named[14663]: db.domain....
0
votes
1
answer
118
views
Why can't I activate DNSSEC for Domains with a gg ccTLD, despite the fact that there are many domains, which have a valid signature?
This is my first question and hope that I'm in the right community. I bought a gg Domain a while ago and wanted, later needed, DNSSEC. After the purchase I encountered the problem, that I can not ...
- 1
-1
votes
1
answer
162
views
domain name system domain does not exist
I’m not receiving emails on my business gmail account domain. When people message me they get a bounce back message. How can this be solved.
enter image description here
0
votes
0
answers
430
views
Ubuntu automatically changes Current DNS Server not resolving my local hosts correctly
I have the following setup on my local network:
A local DNS server running at 10.0.0.102
On the router i have set the primary DNS to 10.0.0.102 and secondary to 8.8.8.8
An Ubuntu server running on 10....
- 1
0
votes
0
answers
190
views
Intermittent DNS Resolution Failures with CoreDNS and IPTables
We are using CoreDNS as a sidecar in our service mesh. CoreDNS is listening on port 15053. Both the application and CoreDNS are docker containers running inside an AWS ECS task using awsvpc mode. To ...
0
votes
2
answers
139
views
Correct hostname/PTR/A for a mail server serving multiple domains?
I am amalgamating a few of my company's Debian VPSs into 1. I will be serving multiple domains, as well as their sub-domains, all of which will send emails, but not receive them (except for bounces):
...
0
votes
0
answers
383
views
Domain Joining using WMIC command with a batch file
With a batch I was able to successfully join Office Systems on domain but for some reason a few are stuck and I did try the same command with changing fjoinoptions=2 and 3 but still unable to get them ...
Farhan Siddiqui
0
votes
0
answers
91
views
CoreDNS not recognizing queries with unempty "text" keys in etcd records
I've spent my last 2 days trying to figure out what's wrong with my setup and couldn't find a resonable answer or solution, so I want to share it with you.
What happened: I've deployed a new etcd ...
