Questions tagged [internal-dns]
DNS that is visible within your corporate network and VPN, but which is not visible on the public Internet.
704
questions
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Windows 10 fails to register host to DNS server on boot
So the situation is as follows.
We have rolled out Windows 10 laptops that auto-connect to the wireless.
The clients are Windows 10 and the DNS and DHCP server are Windows.
When they are docked, ...
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vote
3answers
82 views
DC's storming me with issues
Hi
I have 2 DC's (server 2019) (1 physical, 1 Virtual) was working good, but last month I did notice some issues like I couldn't connect from dc2 to dc1. so I opened Event Viewer to find muliple ...
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11 views
Redirect `http://10.1.10.7:8900/some/long/path` to `mydomain.com` on domain network
Where I work, we use an enterprise web-based software. To access the different pages, users need to enter a long url, like the one in the title: http://10.1.10.7:8900/some/long/path. The different ...
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0answers
14 views
Site/DNS with subdomain to any private IP addresses? [migrated]
So several years ago I saw a DNS service which you could for example put something like: 192.168.1.2.<something>.io and it would return an A record for 192.168.1.2
You could put any IP address ...
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0answers
61 views
Cisco ACL to block external DNS queries [RESOLVED]
One of the routers that I administer is getting bombarded with external DNS queries from the internet. This is a network border router which has a DNS server configured. There is an interface facing ...
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0answers
36 views
Fallback to forwarding with Unbound?
I'm using Unbound on an internal network What I want it to do is as follows:
If a local_zone matches, return from there
If not and it matches the internal domain name, then try forwarding to Consul ...
0
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0answers
15 views
Internal routing of external port forwarded domain on router TP-Link TL-ER5120 [duplicate]
I have two internet access (one fiber one backup vdsl2), and I use a multiwan router to link them to the rest of my network.
My internal network contain a server that is accessible from the internet ...
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0answers
50 views
Problems using local DNS server
I am trying to set up openbalena on a virtual machine, and it requires DNS records in order to be discoverable. I have set up bind9 like so:
/etc/bind/named.conf.local
//
// Do any local ...
0
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1answer
59 views
Setting up dnsmasq as resolver for local domains, forward others to campus nameserver
I'm tearing my hair out trying to setup dnsmasq. I'd like to be able to resolve certain local domains (just as a test) to my own machine, and forward the rest to my regular DHCP nameserver that's ...
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0answers
60 views
Why can my Windows Server 2016 domain controller not register its records on an external BIND DNS server?
Background
For lab only purposes, I've set up a Windows Server 2016 domain controller on my network in a new forest. My goal is to use a BIND9 DNS server for all of its DNS needs rather than using ...
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1answer
101 views
Local internet gateway and VPN Connection, which DNS takes precedence?
I am not network administrator but was a developer 15 years go. So bear with me if my networking understanding is rusty.
I have a Win 10 Pro client with local internet connection (home) and a VPN ...
0
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2answers
23 views
Bind9 DNS server is getting connection timeout
I am setting a DNS server in my lab, where the DNS server (Ubuntu server) and client's(Ubuntu desktop) are in same LAN (vSwitch) and pfsense as firewall for external outgoing traffic. No block rules ...
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0answers
24 views
No DNS for Windows Server Core
I have set up an Active Directory with DNS Servers on the Domain Controller. I have already joined Computers and DNS works for all machines, even those that are not in the domain. I wanted to setup ...
0
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1answer
29 views
DNS resolving while working from home doesn't work accurate
In the current situation we are using VPN connections while working from home to get access to data in our company network. We are all using Windows 10 machines. We have some shared directories like "\...
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0answers
36 views
BIND DNS won't resolve CNAME to external domain
I'm trying to setup my own DNS server on my server 192.168.1.70.
I want to be able to resolve my own names in my LAN but I want all other zones to be resolved by my router (192.168.1.1).
Here is my ...
0
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1answer
45 views
Android appears to bypass firewall rule which restricts request for port 53
I'm trying to configure my Fios G1100 to force DNS request to my internal DNS server 192.168.1.131. This device runs Pi-hole, which is configured to make DNS request to 1.1.1.3 and 1.0.0.3. This has ...
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1answer
78 views
Pfsense and Dns Resolver - SSL/TLS for internal access?
I have a Pfsense box that is able to issue/renew acme certificates, with haproxy installed, that has two backend servers that use the generated acme certificate that works fine.
(email and nextcloud ...
0
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1answer
98 views
Debian Samba AD DC: domain connected Win 10 can't connect to LDAPS
I've installed Samba 4.9.5-Debian with Active Directory role on Debian 10. The installation is configured with SAMBA_INTERNAL DNS backend. When I try to connect with LDAPS with domain connected ...
2
votes
2answers
63 views
How to create DNS entries on Windows Server, such that a single word (without a TLD) can be used to resolve an ip? [closed]
In the Windows Server DNS role, is it possible to create a DNS entry, such that all devices in my network (also those that are not part of the same domain) can resolve a short hostname (eg: 'test') to ...
1
vote
1answer
95 views
How to register RRAS VPN clients in DNS with DHCP doing secure dynamic updates?
A past MSP configured our Windows servers (2012 R2) like so:
SERVER01 (10.0.0.1): DC + DHCP + DNS
SERVER02 (10.0.0.2): RRAS
DHCP is handing out IP addresses in the 10.0.0.50-240 range.
DNS is ...
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0answers
57 views
Adding a new DNS server with systemd-resolved
To access other machines on my network by their name, I have to add the following two lines to my /etc/resolv.conf:
search foo.local
nameserver 192.168.X.Y
But any changes I make do not persist ...
0
votes
1answer
42 views
Public CNAME to private internal domain doesn't work
Public name server (controlled by me, I own example.com):
private.example.com. 300 IN CNAME myserver.home.
Private name server (some auto-config voodoo, can't modify this record):
myserver....
1
vote
1answer
47 views
OpenShift routes vs Kubernetes ingress and creating new local DNS names?
In Openshift I am used to expose my service outside the cluster through a route. That will automatically create a new "domain name" that I can use to access my application from e.g. my local PC on the ...
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vote
2answers
119 views
Can't resolve internal names over P2S,S2S in Azure
For some reason, our DNS resolution does not work correctly over SSTP VPN or S2S connection in azure.
Everything works fine directly in the Azure environment. Additionally, I get the correct DNS ...
0
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2answers
119 views
AD for multi-site, with zone-transfer and local DNS entries
We have multiple sites in NV, TX, PA and NY. NV site is the primary site with AD and DNS server for all the users/hosts in NV. NV is also connected to TX, PA and NY through VPN. Currently, TX, PA and ...
0
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1answer
166 views
OpenVPN Default DNS on Windows Clients
I have set up an OpenVPN Server on a Debian9 device so that my company can reach our server infrastructure from the outside. I'd like them to use hostnames to reach the servers so I've set up Bind9 as ...
0
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1answer
100 views
GCP: How to do DNS Peering between 2 VPCs that use VPC Peering in the same project
In Google Cloud Platform, how do I set up private DNS Peering between two VPCs that are connected with VPC Peering, but reside in the same project?
I have one project my-project and two VPC networks: ...
google-cloud-platform
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1answer
81 views
Why create a reverse DNS record for every device that connects to a wireless network?
There's this network I connect to often. After some experimentation, I figured out that when you connect to the network, the DHCP server assigns you an FQDN that usually follows the scheme <your-...
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2answers
229 views
DNS query response of “No such name”, but client can ping the domain name
Basically I issue a query (Type: PTR) from my client for the following
_some-service._tcp.gv.com
In response to that query, I get back
Reply code: No such name (3)
According to this question and ...
1
vote
2answers
62 views
How can SSL work with “subdomain” but not “subdomain.subdomain.domain.com”
I'm investigating an SSL setup and Chrome says the cert was issues to, subdomain.subdomain.domain.com but if I visit that URL I get the "Cert Invalid" warning". Yet, if I visit "subdomain" directly, ...
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2answers
129 views
Resolving Kubernetes service via internal DNS server - Bare Metal
I have a kubernetes cluster running w/ 4 nodes, my main master node plus for other nodes. I used kubespray to get everything running. This is on my home network, which I will explain down bellow. ...
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2answers
88 views
mixing external and internal DNS servers for AD joined machines
I have a question. Many of our clients have only one DC. Is it better to use external DNS (ISP,or google) as the secondary DNS server for AD-joined machines or set up a conditional forwarder in the ...
0
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1answer
20 views
External site redirects www to non-www. This causes a conflict inside our network. How bad is my idea for a fix?
Our network has a domain named after our business: business.com. Our new website has just been finished and is live, but the developer has chosen to redirect all www traffic to the non-www URL; so www....
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1answer
652 views
How to configure OpenVPN to update Bind9 entries for local domain?
I have found an article describing how to configure dhcp3 server to update a Bind9 zone with the hostnames and assigned ip addresses.
I want to achieve the same effect, but inside a VPN subnet, where ...
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0answers
63 views
dnsmasq DNS cannot be reached by local devices
I am currently working on a locally hosted website running on the free version of MAMP. I wanted to assign this website a domain name, hence i came across dnsmasq. I have set up the program using ...
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0answers
51 views
Subdomain with all digits seems to be messing with /etc/hosts file
I have a /etc/hosts file that has something like this line for 127.0.0.1 for hostnames I'm using for development sites:
127.0.0.1 localhost site1.example.com site2.example.com site3.example.com
I ...
0
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1answer
86 views
Is 127.0.0.1 OK as an IP for local development across Windows/OS X/Linux?
I'm building a tutorial (Flask web development) that students work on using a variety of operating systems. I'm mostly an OS X user, so I obliviously configured the app host to be 0.0.0.0:5000 and ...
0
votes
1answer
119 views
How can you resolve different DNS entries depending on the source subnet?
I have a new internal website going in place in multiple sites and I am looking to resolve the fqdn for it to the site specific subdomain depending on the source subnet used. The way our bind DNS is ...
-1
votes
1answer
66 views
Adding a private nameserver to public DNS zone for a subdomain
We have a DNS zone setup on Azure which resolves all of our records on our base domain (eg: example.com). We also have an internal DNS server using BIND and are currently duplicating the records on ...
0
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3answers
74 views
How to “add” some A records to a “3rd party” DNS zone (using BIND)? [closed]
So, I'm not sure how to word the question exactly, but here's what I'm trying to do...
(I'm trying to do this with BIND.)
My company has it's own internal name servers. Let's say that they are ...
0
votes
1answer
100 views
PowerDNS - Glue record returns servfail
So I've been in the process of setting up a PDNS Recursive and Authoritative server for an internal network. The recursive server runs on port 53 and the authoritative runs on 5300. Requests are ...
0
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2answers
168 views
DNS caching - iterative vs recursive
In an iterative DNS architecture , local DNS servers have caches and can mostly skip contacting root and TLD servers.
In a recursive schema, the local DNS server contacts one DNS server which ...
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0answers
42 views
Discarding A record responses - when querying a DNS entry returns both A and AAAA records
I have a linux system with both IPv4 and IPv6 addresses.
I want to reach an external system by way of a DNS entry.
This DNS entry returns both IPv4 and IPv6 addresses (A and AAAA)
Is there ...
0
votes
1answer
24 views
Setting up another domain controller with Active Directory, Group Policy, DNS
I was wondering if anyone could give me advice on setting up another domain controller. Our environment has one and we're looking to add a second one. I haven't set one of these up before and am ...
0
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0answers
37 views
Docker Swarm DNS orphaned IP address
System information:
Docker Engine Version: 17.06.2-ee-6
My team and I have been observing peculiar behaviour in our Docker cluster recently, where a REST request to a service (here: myservice) has ...
1
vote
1answer
255 views
NGINX reverse proxy in front of docker containers
How do we get NGINX reverse proxy to proxy_pass into the right IP/resolve the container's hostname? I get the notion that resolver pointing to an exposed Docker-embedded DNS is ideal.
Context: ...
0
votes
1answer
42 views
Configuring Active Directory Domain Services in a network that has Univention DNS Servers
I've been tasked with the creation of an ADDS forest (single domain, for now) and after reading best practices, i decided to name the domain ad.mycompanydomain.com.
Two Univention Corporate Server ...
0
votes
1answer
250 views
Is it possible to force update of Route53 DNS resolver cache in AWS when IP changes?
I have several VPC's set up in AWS, and all of my instances use provisioned IP addresses, that is - not using Elastic IP Addresses.
When any given instance boots up, it executes a script on the ...
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0answers
21 views
BIND9 Slave server not resolving but replicated zones are fine
Today the master dns server of an internal network subdomain failed and the slave server cannot find names in the replicated zone
Querying the server
nslookup ns1.sis.trt 10.3.190.61
Server: 10....
2
votes
2answers
289 views
Azure DNS - On Prem to Azure via VPN - Keeping things internal?
We have a VPN that connects our onsite network to an Azure VNET. We want to delegate a DNS subdomain from our onsite DNS to our Azure DNS. If we use the Azure public DNS then we are given four Azure ...
