Questions tagged [internal-dns]
DNS that is visible within your corporate network and VPN, but which is not visible on the public Internet.
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let local dns&name server to be reach from internet
I present the context: i have public fix ip that it's set to my pfsense on the wan; i have internet on my lan; in my lan i have a local dns server (ubuntu 22.04 with bind9 with ip 10.14.14.10) where i ...
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AWS ALB - Redirect to DNS accessible with Transit Gateway
I have two VPCs:
Inbound VPC with CIDR 10.0.0.0/16 (2 public subnets)
Private VPC with CIDR 10.1.0.0/16 (Private endpoints)
Both are connected with a Transit Gateway and I can resolve the DNS and ...
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Can not access company website from within LAN domain
This is probably something simple but I'm having a brain fart trying to sort this out.
I'm trying to mimic an existing physical location setup by a previous engineer.
I've set up a new physical site [...
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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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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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Exchange returned '441 4.4.1
some emails sent from my exchange server 2013 return this error:
Sometimes I check the mail flow and emails that have this error
"returned '441 4.4.1 Error encountered while communicating with ...
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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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Forward subdomain to another dns-server with dnsmasq
I have dnsmasq as main dns-server in localnet(192.168.0.14).
It's serve local domain 'example'. Also I have another dns-server(bind9 - 192.168.222.67) that serve domain 'virt.example'
Here part of ...
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How do I change which interface gateway pfsense resolves to?
I've recently extended my network from one flat LAN to a couple interfaces using additional physical ports on my router and VLANs. I've kept the old interface up while I'm migrating and for testing ...
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Is it possible to create a local SRV record in linux?
Is there something like /etc/hosts file for SRV records? I would like my Alpine Linux server to find the value of _xmpp-server._tcp SRV record locally.
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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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macOS DNS resolve issue in internal network with Bind9 as DNS service
I'm using Bind9 as a DNS service to resolve some domain names internally. The topology is simple, with one router for all internal computers, and all computers using an internal DNS to resolve both ...
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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 ...
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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....
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3% of Sendmail Localhost Relays are Deferred
Using Debian 10.3 and Sendmail Version 8.15.2, mail being sent with relay=[127.0.0.1] results in stat=Deferred: Name server: [127.0.0.1]: host name lookup failure. This occurs only 3% of all localhost ...
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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 ...
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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 ...
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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 ...
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are comments in Bind zone file visible to anyone who can access the view
I just implemented zone transfer restrictions (IP plus tsig key) on my bind server. I assume this should mean that the entire zone contents are not accessible by anyone anymore, correct?
If I place ...
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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&...
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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 ...
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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 ...
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Move-Copy-Export DNS zone from old Domain to non domain windows server
We have an old 2008 Server being utilized for it's DNS only, all computers are joined to Azure. The issue is it is a domain controller, never de-commissioned, just not utilized for anything but DNS at ...
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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 ...
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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 ...
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189
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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-...
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Domain name is resolving to DC that is not accessable for VPN users
Problem is when one (and only one) VPN user tries to resolve our domain name (xxx.local), it is resolving to a DC that is not accessible to VPN users, and not the ones that are accessible.
We have 2 ...
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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 ...
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intranet dns lookup fetching incorrect ip
We have a host entry on our server in /etc/hosts file. So there is an entry as follows:
10.74.74.76 foo
But on the same machine, via SSH I do the following:
$ host -t a foo
foo.internal.domain.com ...
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Is it possible for a PDNS authoritative server , to reply to any queries, irrespective of zone file
I have a powerdns-recursor name server, which forwards, the queries to a powerdns authoritative name server, based on the requesting client IP.
The authoritative server, uses a remote REST API backend,...
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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 ...
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Adding another TLD to dnsmasq installed with Laravel Valet
I've got Laravel Valet set up on my Mac (Monterey 12.5.1) to run PHP based sites locally on the .test TLD. This all works as expected and everything is fine.
I'm trying to set up another fictional TLD ...
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Cloudflare CNAME Flattening and Windows DNS server
I have an issue that has been stumping me for the past few days. Lets say we have a website called RobertsStuff.com. This site has CNAME flattening through cloudflare and this is working fine ...
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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 ...
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DNS resolution for certain A records and recursion to public DNS for rest all queries
I have been going on through many artciles to find solution to one of our issues.
We are trying to find solution to DNS recusrion.
We have 10 websites for which we have created Host A records but now ...
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Internal DNS server ignored when using Edge and Android
I have a domain name publicly connected to my home address, so I can access a webserver locally. For example: webserver.domain.com
But when trying to reach this from inside my home, I get on the web ...
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Sonicwall DNS cache for devices on VPN network
I have a Sonicwall TZ400 running in a local office on network 192.168.10.0/24. There is a VPN connecting the sonicwall to a cloud network on 10.10.30.0/24. I have devices with static ip addresses on ...
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Internal Windows DNS Forward Lookup Zone for an external domain, should I user External Name Servers?
I do have a Forward Lookup Zone on my dns server, It is a domain that I own, let's call it example.com.
I did setup A records, subdomains as www, ftp etc, everything is working fine.
What I am missing ...
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How to dynamically assign an internal DNS server to an internal client that receives dynamic IP information from an external DHCP server?
My question title sums up everything, what I am trying to archive here is – when an internal client (laptop in the network diagram picture) joins the internal L3 switch on the Lab side, it should ...
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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-...
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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 ...
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Chrome ignoring local dns replies
Am having a local network with about 300 devices some is domain connected and some are not
I have windows server 2012r2 sith dns role
Domain connected users can access local iis webpage while others ...
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Map ip+port to internal website name
I have a LAN web application running in our organization on a Ubuntu 20.04 at this address:
http://192.168.0.104:8084/
Rest of devices are Windows and our servers are Windows Server too. So our ...
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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....
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Use PowerDNS to update AD Integrated DNS Zone
Before I embark on the experiment, I figured I might ask the community at large.
So I've got an odd situation that I'm trying to remedy. I have Terraform deploying virtual machines (Linux and Windows) ...
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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 ...
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Docker does not work behind VPN: DNS or routing problems?
Hi all sorry for the noob question. I've read a lot of posts online but nothing seems to help.
I have a fresh Ubuntu 22 and fresh Docker install.
This Ubuntu machine is behind a pfSense router. This ...
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How to disable /etc/hosts from resetting after reboot
Using Ubuntu 20.04 LTS on a Raspberry Pi and trying to setup a DNS and DCHP Server on it using DNSMasq
Got to the point where I want to add static DNS results in the /etc/hosts file however when I ...
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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 ...
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Why would Windows 10 workstation give "Connecting" popup when saving file to network?
We have our main file server "Files" on a Windows 2012 R2 server which works fine for nearly every workstation. A couple however, both of which are Windows 10, are having an issue when ...
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