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Questions tagged [internal-dns]

DNS that is visible within your corporate network and VPN, but which is not visible on the public Internet.

886 questions
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Windows XP Does Not Follow CNAME Shares

I am supporting a mix of Windows XP Pro and Windows 7 desktops in my Active Directory network, and I am having an odd issue with XP and CNAME records. Say I have a record in my DNS for a server with an A name of something like STORAGE.company.local…
user49349
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Simple, manageable DNS on EC2?

I'm working on a large network of servers sitting on EC2, and need a way for the servers to know about each other's locations in the cloud. I thought the simplest way would be to use DNS, because if I replace the EC2 instance, I simply update the…
dkulchenko
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Internal DNS with DLINK Router

Using a DLink 2640-T (ADSL2+Router). It cant resolve the internal hostnames. The manual is pointing to the firewall settings of the router to switch off the DNS-Blocking from external (which doesnt make sense to me). But even with that in place it…
javadude
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Using a single-level domain for Active Directory

It's common convention to name a domain something like companyname.local for internal Active Directory with integrated DNS. I'm in a situation where the company name has changed and I would like to rename the domian. I'm aware of the difficulty and…
Ryan
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dnsmasq: How to set alias domain / multiple DNS suffixes for local hostname resolution?

Is it possible to set multiple search domains via dnsmasq/DHCP? Due to some migration, I need multiple clients to be able to: ping server.old-domain ping server.new-domain # both should work, .old-domain being an alias for .new-domain I have tried…
ramo
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Configure DNS routing in wireguard

Can anyone help to configure routing in wireguard, please? What i have: Linux server with installed wireguard, unbound dns, pihole, seafile. router keenetic speedster iptables is set to deny 80 port to all, and allow only for wireguard local users.…
bsodfather
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How to create DNS entries on Windows Server, such that a single word (without a TLD) can be used to resolve an ip?

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 the host's static ip address without requiring…
matthias_buehlmann
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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 DNS servers with public ip addresses but what we…
Philip Lewis
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Avoiding DNS lookup issues with a cache

I'm running fairly simple PHP websites, on Ubuntu, with AWS EC2 instances, which use *.rds.amazonaws.com domain names to connect to their respective RDS instances. This introduces 2 issues: When the DNS cache expires, every 5 seconds, the next…
Craig Francis
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Bind9 not responding to outside dns queries while port 53 is open

I have setup a bind9 dns server on virtualmin and created dns zone for following domain with following nameservers. domain = thecrystalsms.com Name Server ns5.crystalhost.net ns6.crystalhost.net Both ns5 and ns6 are resolving correctly to…
Roshan Budhathoki
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How to troubleshoot internal DNS resolution (Windows DNS server) pointing to a local server with a static internal IP address

To better explain the set up I have a Debian server in a private network with a static IP. There is a windows AD server that resolves DNS for clients internally. A domain name is already registered and a public IP is pointed to the server AAA…
Bantu
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BIND DNS lookup shows a wrong IP for the domain name

I have a BIND DNS server in a LAN with hostname --short : server hostname --domain : unisof.com hostname --fqdn : server.unisof.com hostname --ip-address : 192.168.1.100 /etc/bind/named.conf.interna view "interna" { match-clients { …
Scarlett
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Port forwarding via remote hostname unable to connect, works via IP

I'm trying to perform local port forwarding over ssh to a remote server (the "jump server") which has access to a mariadb server (the "DB server"). The jump server has the public IP address 1.2.3.4, while the DB server has the internal IP address…
Leon Aves
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Simple DNS Configuration on Ubuntu 18.04

Can't seem to get past a configuration error while configuring a simple DNS nameserver on Ubuntu 18.04 with Bind9. named.conf.local file is pretty straigt-forward: zone "mynameserver.local" { type master; file…
Elcid_91
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Windows domain username formats? NETBDOMAIN\USERNAME and DNSDOMAIN.COM\Username?

I'm running into issues with authentication and mapped network drives across a VPN tunnel. Namely error messages related to not being able to find a domain controller. I suspect this is somehow related to WINS, as DNS lookups seem to be working…
Justin
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