All Questions
Tagged with domain-name-system internal-dns
525
questions
-1
votes
1
answer
66
views
Active directory server set up DNS resolution failure or VERY SLOW, can I route external DNS requests the traditional way, before the server existed?
I'm very new to the world of active directory, windows server etc., so I apologise if some of the questions I ask are a bit stupid, but I'll try and explain exactly what I want to do below, and my ...
0
votes
0
answers
193
views
BIND9 on Ubuntu 20 - Cannot configure Zone to work properly
I installed it on Ubunto 20 and configured two zones
Options config file
acl internal {
localhost;
localnets;
192.168.70.0/24;
10.200.157.0/24;
};
options {
...
2
votes
0
answers
229
views
Kubernetes cluster via kubeadm - CoreDNS buffer size too small / Pods network problems
I am new to deploying on-premise Kubernetes clusters. I managed to deploy one using kubeadm with weave CNI.
Internet connection inside Pods is somewhat sluggish / non-working. I am trying to deploy ...
- 21
0
votes
0
answers
22
views
How to Forward an authorative zone in BIND between internal and public clients
I have a dns server authorative for my public records and my internal records , I want to forward a zone in my internal dns server so internal clients can access certain records without using the ...
0
votes
0
answers
35
views
Using split DNS when devices default to DNS over HTTPS/TLS?
Some routers don't support hairpinning, and even when they do, it can be inefficient, so split DNS is often proposed as a best practice for hosting services that should be accessible locally and ...
- 121
1
vote
1
answer
247
views
unbound DNS without recursive
I want to configure the unbound DNS for the domain e.g. domain.com in a way that it only answers for *.domain.com and rest of any query like gmail.com or hotmail.com are refused.
I have following ...
- 13
0
votes
0
answers
30
views
importing domain from AWS Route S3 to Linode
I want to import a domain registered in AWS:
in the Guides: https://www.linode.com/docs/products/networking/dns-manager/guides/incoming-dns-zone-transfers/
Within your external name server, allow ...
2
votes
1
answer
206
views
DNS Proxy/cache that query multiple DNS, ignore NXDOMAIN
The question is as follow: how can I set up a DNS proxy/cache that queries in a strict order a series of DNS servers (of which some might be unavailable), and that does not stop on the first NXDOMAIN ...
- 123
0
votes
0
answers
93
views
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 ...
- 3,190
0
votes
0
answers
129
views
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
0
votes
0
answers
47
views
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-...
0
votes
1
answer
346
views
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 ...
- 161
-1
votes
1
answer
286
views
Split DNS Issue - Configuring a new domain controller with an existing Apache web HTTP services using the same domain name "example.com"
We have a problem configuring a new domain controller with an existing Linux server hosting an Apache web HTTP services using the same domain name "example.com".
The Ip address for the first ...
- 1
0
votes
2
answers
540
views
Issue valid HTTPS certificates for intranet subdomains with letsencrypt
I'm trying to provide secure services on my home intranet. Up to now I've used self-signed certificates with a made-up domain example.foo, with a subdomain for my separate systems (e.g. srv1.example....
0
votes
0
answers
172
views
Windows DNS randomly responds with SOA NS
Strange behavior at the client.
Monitoring software is set to ping a hostname every minute
Checks with Windows DNS server, which forwards the query to F5 GTM if needed.
It resolves hostname ...
- 1
0
votes
1
answer
1k
views
How do I perma-stop Chrome from using it's own DNS across the enterprise?
When attempting to access an intranet site, Chrome will ignore our DNS settings and navigate to a public page.
Our computers are referencing only our private DNS server. Last week, I disabled built-in ...
- 1
0
votes
1
answer
575
views
Configure Windows Server w/ multiple interfaces reply to DNS with subnets from specific interfaces?
Our windows server 2019 needs to respond to requests with IP addresses that are only on the interface subnets they are being quried from.
We have two DC's. Each has 3 interfaces. Each interface is its ...
- 287
1
vote
1
answer
796
views
CNAME for Active Directory domain controller
So my question is - is there any concern to add a CNAME for one domain controller to provide to copiers and other internal sites/applications?
I read that Active Directory doesn't truly "need&...
- 11
1
vote
2
answers
6k
views
nslookup finds IP address, but still claims NXDOMAIN
In my network I have:
mikrotik router (10.0.0.1) with static DNS entries for myhost.mydomain.com -> 10.0.0.4
adguard server (10.0.0.128) that uses 10.0.0.1 as upstream DNS
DHCP gives 10.0.0.128 as ...
- 121
0
votes
1
answer
327
views
bind dns zone notify with multiple view
I experienced some difficulties with zones from what should have been an internal view (with RFC1918 addresses plus public IPv6) leaked to the external view (public IPv4 plus public IPv6). I think I ...
- 181
0
votes
1
answer
399
views
Setup split DNS to external CNAME when resolving within an internal CoreDNS?
I have an internally hosted DNS resolver via Core DNS running on my network. Everything is great aside from one thing, which is I cannot load my apex domain when connected over VPN. The reasoning is ...
- 1
2
votes
1
answer
332
views
AD Domain with matching TLD FQDN, forwarding DNS requests
I have the following scenario:
A brand new ADDS domain from a single PDC+DNS.
The FQDN of the domain matches our public website name (webname.com).
The gateway dictates the PDC/DNS as the first DNS ...
- 55
-1
votes
2
answers
389
views
DNS lookup fails if provided domain name ends with a slash
We have successfully run an office network with various Linux servers (Ubuntu) and Windows+Linux clients for several years now. One server acts as and internal DNS server using the DNSmasq light-...
- 11
0
votes
0
answers
206
views
How to reset dnsmasq console settings?
I'm running the RaspAP on my Raspberry pi and changed some dnsmasq settings in the terminal. Since then I can't connect to any service running at the raspberry. I want to reset the settings I made but ...
- 1
0
votes
1
answer
374
views
DNS Zone has no address records (A or AAAA)
Whenever I run systemctl start named.service I get the error:
zone example.com/IN NS 'linserver-1.myco.example.com.example.com' has no address records (A or AAAA) Now the confusing thing for me is ...
0
votes
1
answer
411
views
How Do I Setup Subdomains in Private AWS VPC?
I have a domain registered at GoDaddy. Let's call it acme.com. Servers that are publicly available have their subdomains registered at GoDaddy. Example: www.acme.com and service-a.acme.com.
I have a ...
- 103
1
vote
1
answer
2k
views
Still having DNS forwarding issue
I asked this question a while back and it got bumped to chat because a lot of subjective opinions.
Original message here for reference: https://chat.stackexchange.com/rooms/139176/discussion-on-...
- 445
0
votes
0
answers
331
views
DNS forward resolution for specific non-FQDN hostnames (short names)
I'm in a situation where I'm being asked to solve a problem where computers are being migrated from one network/DNS domain to another. As this transition occurs, there will be machines in the original ...
- 101
0
votes
0
answers
349
views
Multicast resolution overrides hosts file on Windows 10
I have a Windows application that publishes itself with a DNS multicast record.
Let's say myapp.local.
When it is installed, it stores a record in hosts file under systemroot/drivers/etc folder.
127.0....
- 1,312
0
votes
2
answers
444
views
Split DNS. Same domain names with different values in internal and external world
I am searching for possible solutions for splitted DNS for internal/external worlds. Thing is, those two "worlds" (in reality different sets of nameservers) are partialy overlaping.
Here is ...
- 11
3
votes
1
answer
1k
views
How to setup Client VPN Endpoint to use AWS DNS?
I'm trying to allow VPN users to use Private Route53 DNS entries. Eg: a private hosted zone example.corp issuing DNS records on the local network.
At the moment I can't even find the right set of ...
- 1,761
0
votes
2
answers
3k
views
Can I force a custom DNS server for OpenVPN clients, without forced traffic redirection?
I have configured an OpenVPN server to give users remote access to internal company resources. Since the main purpose of this VPN is not to change/hide the users IP address, but to provide access to ...
- 133
0
votes
1
answer
432
views
clients on a pfsense with zentyal on local network/domain can't resolve/ping hostnames into ip address to use with Veyon
Hi I have network at a school setup with
pfsense as firewall, router, dhcp and captive portal (for wifi), domain: schoolname.intranet
zentyal: freeradius, ldap, dc, and dns
problem:
clients can't ...
- 111
1
vote
0
answers
8k
views
Dynamically register hostnames on DNS server (via DHCP)
I want to set up a small network, where a central DHCP server leases IPv4 addresses to the clients. The clients already have their hostnames set and should advertise those to the central DNS server, ...
- 121
1
vote
1
answer
2k
views
DNS suffix works only when no subdomains are added
We have a DNS suffix for our domain ourdomain.local and it works whenever we have one additional DNS component e.g. test1.ourdomain.local or graphs.ourdomain.local, so that means we only have to type ...
- 31
0
votes
1
answer
53
views
Suddenly dig +nocmd pop3.pauperis.org aaaa +noall +answer returns nothing
the command dig +nocmd pop3.pauperis.org aaaa +noall +answer returns the followingin my laptop:
pop3.pauperis.org. 3111 IN CNAME pauperis.org.
pauperis.org. 3111 IN AAAA 2001:41d0:...
- 508
0
votes
1
answer
923
views
Client on network not resolving local records but using external instead
Problem
When trying to access an internal server via hostnames using NSLookup, I receive the correct DNS server address, FQDN and destination IP address.
When I try to access the server using its ...
- 1
2
votes
2
answers
2k
views
Why will Firefox resolve my domain but Chrome will not
I've been setting up a LAN DNS server using DNSMasq to forward my webserver which at the moment has https and is port-forwarded by my router. I have a domain registered which resolves fine from ...
- 151
0
votes
2
answers
2k
views
DNS Record to "redirect" from old server to new server
I have a question regarding DNS:
I have the following setup:
srv-old.example.com | Host(A) | 192.168.1.2 | timestamp
srv-new.example.com | Host(A) | 192.168.1.3 | static
can I just add another ...
1
vote
1
answer
393
views
BIND9 - dig is unable to resolve from different server
$ named -v
BIND 9.16.1-Ubuntu (Stable Release) <id:d497c32>
I have 3 servers configured in digitalocean nyc1 all in the same subnet
on server01 - I have installed bind9 and configured the zones ...
- 113
1
vote
0
answers
260
views
how to make unbound hold many queries for non cached address to cache it first
I am looking for a way to make unbound hold queries for the same address lookup when it is not cached. It should let only one query to be processed, after that answer cached it can reply other queries ...
- 33
1
vote
1
answer
1k
views
Windows Server DNS Server Failure
I am having some issues with Windows Server 2022's DNS resolution and was hoping to get some insights. I have included some screenshots throughout the post
The server in question is running on HyperV, ...
- 111
0
votes
0
answers
26
views
DNS best practice for large resilience orientated org
I have been asked to investigate the resiliency of our DNS and it's config. What's the industry best practice around this?
The following have been suggested: the DNSAdmin group (which is usually ...
- 1
1
vote
1
answer
164
views
Weird Active Directory DNS Issue
I am having a DNS issue I cannot figure out. For one specific hostname, when I create an A record, the name ends up changing when it replicates to the other DNS servers in AD.
We currently have two ...
- 11
1
vote
1
answer
1k
views
Container DNS resolutions works only after restarting dnsmasq
[Update] add software versions
I have a home server which runs docker and DNS/DHCP for my home network. It's all working quite nicely except for one thing: Containers can't do DNS resolution after ...
- 203
0
votes
0
answers
560
views
How are external url's resolved by FreeIPA?
We are running FreeIPA version 4.6.8 on Centos 7.9.2009 and have multiple dns zones defined for local resources running inside our private network. For this to work we enter our ipa server's IP ...
- 75
0
votes
1
answer
70
views
Why the IP cannot be used directly when the IP mapped to the host name as a host entry works?
I was given an API for a service through which I tried to send a post message from server A, but the connection cannot be built. Then I ping the domain name in the API. It doesn't work, so I thought ...
- 113
0
votes
2
answers
2k
views
Creating a sub domain of our public domain for corporate/internal Active directory use. The public domain is also our Office 365 and Azure domain
Our current internal AD domain is example.local (set up long before I joined our team when this was a best practice)
Our Office 365 domain is a public, registered domain with GoDaddy which we use for ...
- 1
0
votes
1
answer
151
views
How to make a domain name resolve to the same IP address as another domain name?
I have a AWS ELB to the gateway of an internal service.
I have some other host names that I need to be resolved to the same address as the ELB DNS name.
In my current set up, I'm using /etc/hosts to ...
- 139
-1
votes
1
answer
849
views
PowerDNS Auth and Recursor - Bug with one domain?
I have a problem with one of my domains on my private DNS.
I have two servers.
Server 1 with dnsdist. It directs to port 54 to server 2
Server 2 with powerdns (port 53) and powerdns-recursor (port 54)
...
- 19