Questions tagged [dns-server]

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SaaS to On-Premise: how to set up intern domains for private network overwhelmed with the firewall for solution

I recently started as a intern and I'm overwhelmed with my job. We have a product which is hosted externally. We only have a simple router. The Services should be running in Docker Containers with ...
-2 votes
0 answers
15 views

open a website from our server in local network

in our office we install a software in the windows server. its web base and users type address in browser. its like a website. we have home group network. then add a hp server and windows server. i ...
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Bind9 unable to resolve external nameserver

I have set up a DNS Server within my company's LAN. Local nameservers works correctly, however those outside such as google.com are not resolved... By running dig google.it I get this result: ; <&...
2 votes
1 answer
160 views

Nameserver record keeps getting added to DNS zone in Windows Server DNS

I have a public DNS server running on a Windows server with the hostname dc01. A nameserver for this hostname (dc01) keeps getting added to the DNS zone: If I try to delete it, then reload the zone ...
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DNS Recursion - DNS_PROBE_FINISHED_BAD_CONFIG

I have several servers which I joined to my Microsoft Active Directory (which uses also a custom DNS server which I set up from the Server Manager). The Federal Office for Security in Information ...
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How to set up OpenVpn client on the Mikrotik for two different PCs with the same credencials for vpn?

I set up OpenVpn client on the router Mikrotik, but for some sites have ERR_NAME_NOT_RESOLVED. I am using OpenVpn on Ubuntu, but I need to use the same credentials for VPN on two different PCs, when I ...
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115 views

Bind9 - cache all forwarded queries for a while

My servers was keep asking similar dns queries to 8.8.8.8 and it cost around 30 ms every time. So that I have installed a Bind server and forwarded all dns requests to 8.8.8.8 like this: zone ".&...
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170 views

VMSS auto register with Custom DNS

We’re creating a VMSS and we use a custom DNS with extending AD from on-premises, but we are not sure how to register the VMs as the scale set scales out, in azure DNS we can create a private zone and ...
2 votes
0 answers
602 views

DNS: Zone TrustAnchors secondary servers must respond to queries for the zone

I'm trying to clear out every last error (and hopefully warnings as well) mentioned by BPA (Best Practices Analyzer) about my DNS server on Windows Server 2019 server. Currently I have 1 error left: ...
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Setup DNS Server to resolve hostnames via OpenVPN

This is a pretty basic question, but I never worked with DNS Servers. I have an OpenVPN server hosted on our NAS. Coworkers from the home office connect to the NAS with our OpenVPN, but windows ...
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My Centos Server DNS resolves to 127.0.0.1 and not the real IP

Im using CWP on CentOS 7, it was working just fine but some time from now, my DNS Server resolves all my domains to 127.0.0.1. So I could open up a page that were hosted on my vps on my clients ether ...
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Subdomain not pointing to IP despite correct A record

Let me explain. I have a domain name which is example.com and a subdomain drive.example.com example.com points to 203.0.113.55 -> no problem drive.example.com points to nothing according to DNS ...
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2 answers
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Why my Windows DNS Server automatically add more TLD (.co.id) when i try to find domain using nslookup?

When i search a domain like google.com, nslookup automatically add more TLD (.co.id) to domain that i've looking for. How to fix it? Screenshoot nslookup on my windows dns server
1 vote
0 answers
178 views

Manage DNS server on Server 2019 from Server 2012

I have a non-AD Windows Server 2012 machine (192.168.200.10) that has the DNS Server role installed, and it is the primary server for a number of zones. Unfortunately, I'm stuck with this server being ...
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472 views

How to setup OpenVPN server with bind9 as private DNS server?

Recently I was setting up a VPN node with OpenVPN server and Bind9 to prevent DNS leaks and got a problem with Bind9. Setting up OpenVPN server was mostly easy, but bind9 is a bit more tricky ...
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1 answer
206 views

Connecting Google-Domains to Cloud-run URL

Does anybody know how to connect my Cloud-Run URL with a Google Domain? I'd prefer to use Google Domains DNS server. I ping successfully at at what Cloud Run assigned me in Domain Mappings(also in ...
1 vote
3 answers
2k views

How does a router with DHCP and a custom DNS set deal with client DNS settings?

I have a custom DNS server in my network that I want all clients to use (it has ad-filters etc, similar to PiHole). I have set my router (LinkSys Velop) to use this DNS server. However, on the DNS ...
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1 vote
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4k views

DHCP not updating dynamic DNS record which has an associated CNAME record

I have an Active Directory domain corp.com, which has a child domain dev.corp.com. Each domain has a pair of DCs. For the top-level AD domain, DNS, as well as DHCP, runs on both ADs. For the child ...
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1 answer
364 views

Standard Windows Server 2019 wizard setup with AD, DNS & DHCP does not resolve any DHCP client names

I am working myself through learning and setting up a pretty standard Windows Server 2019 (Essentials edition) serving as an AD PDC, DNS- & DHCP server for a very small network. I followed some ...
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1 answer
486 views

Windows Server 2019 Essentials AD & DNS resolves *ANY* name to the same IP address

I am trying to update a small network to use a Windows 2019 Server Essentials for its domain controller, DNS- and DHCP server - primarily for learning things and experimenting. I have been following a ...
0 votes
1 answer
140 views

Would adding CNAME records in DNS server for setting up DKIM cause email server issues?

I want to add two CNAME records to make my Microsoft exchange be DKIM compliant according to Microsoft.com’s instructions. Is there any possibility adding the two CNAME records would cause disruptions ...
1 vote
1 answer
335 views

Windows server "Disable recursive dns"

I've disabled DNS recursion in my DNS server (Operating System: Windows server core 2019) using this method Disable DNS recursion, Also I've executed this commands in my DNS server PowerShell Set-...
1 vote
1 answer
633 views

Process to migrate DNS and DHCP from on-premise, Windows domain controller

Our organization has an on-premise, Windows, domain controller that we'd like eliminate in favor of a local DHCP/DNS server on either our Unify switch (first choice) or FortiGate VPN appliance (second ...
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1 vote
2 answers
101 views

Why my domain doesn't map to the server address?

I have installed DNS server and network manager on my remote server as by following this instruction: https://www.linuxtechi.com/setup-bind-server-centos-8-rhel-8/ as below: var/named/fwd.sssss.com.db:...
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1 answer
383 views

Answer from Name server that return 127.0.0.1 for A record

When resolving zapworld.com, I got the following response from the TLD server (g.gtld-servers.net.): zapworld.com. 172800 IN NS ns2.developyour.net.deleted.gandi.net. zapworld.com. 172800 IN ...
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2 answers
157 views

Clarification on RFC 2606 & 6761 regarding the reserved domains

I read https://www.rfc-editor.org/rfc/rfc2606 and https://www.rfc-editor.org/rfc/rfc6761, but I still do not get some details. Why do https://www.rfc-editor.org/rfc/rfc2606 does not explicitly says ...
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5k views

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, ...
0 votes
1 answer
52 views

Service Records for http

Is it recommended to use SRV / service records resource records for http? Are there any significant advantages or drawbacks for using them in http?
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1 answer
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Why does an AWS website have 3 servers in dnschecker?

When I test a client's website in dnschecker.org it shows 3 IP addresses. Is this something to do with how amazon hosts websites? Other sites I check have only one.
2 votes
1 answer
1k views

BIND Zone Transfer with two views

I have a simple lab/testing Master/Slave configuration (showed below) and I would like to transfer both views to the slave. Unfortunately after the zone transfer both views in slave have records from ...
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476 views

How can I create a Primary Zone NOT integrated with Active Directory?

Using Powershell on Windows Server Core I'm administering DNS Server from a fresh install. After adding a Primary Zone using a backing Zone File, Add-DnsServerPrimaryZone -ZoneName "example.com" -...
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1 answer
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Is it possible to use a DNS server as a proxy? [closed]

My mobile internet provider cuts my internet service at times before it was due, I contacted them and they did nothing about it I noticed I could still ping hostnames, thus I can connect to the dns ...
0 votes
1 answer
51 views

which TLD for forwarding nameserver?

I want to setup 2 forwarding name servers with powerdns for customer sites. My question is if it matters the domain under which the name servers will be registered. Godaddy panel - for what I recall ...
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1 vote
1 answer
442 views

Google Cloud A record issue with setting up CWP web panel [closed]

I have a VM deployed at google cloud. Here is the google cloud setup. grant-fullen.com. A 300 35.231.125.190 grant-fullen.com. NS 21600 ns-cloud-d1.googledomains.com. ns-cloud-d2....
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1 answer
603 views

Extracting responses from Microsoft DNS Server Analytical logs

Is it possible to extract the DNS responses from Microsoft DNS Server Analytical logs (Microsoft-Windows-DNS-Server/Analytical)? The logs contain a field called "PacketData" in the EventData section ...
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2 votes
0 answers
145 views

DNS doesn't resolve some domains on huge amount of requests

I need to check 200kk (200,000,000) domains for availability and CMS information. I'm using php 7.1 and simulating multi-thread check. Hardware and config The server hardware: Multicore CPU, 64GB ...
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2 votes
0 answers
1k views

Initializing windows server 2019 for hosting multiple website multiple domain names and single IP

I want to set up a virtual machine to host windows server 2019 to host multiple websites in IIS 10. Each website can be reached with a domain name for example: www.website1.com www.website2.com ...
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-1 votes
1 answer
443 views

DNS Spoofing in Bind9 DNS Server

I configured Ubuntu Server 18.04 as a master DNS server. zone ==> google.com ; ; BIND data file for local loopback interface ; $TTL 12h @ IN SOA ns1.google.com. root.google.com. ( ...
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2k views

redirect request to proxy via etc/host

I have a gentoo linux where I run an application that makes requests to a certain domain but does not respect my proxy setting I made in the environment variables (http_proxy, https_proxy, HTTP_PROXY, ...
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11 votes
2 answers
2k views

Why send authoritative nameserver in DNS?

Out of curiosity, I'm checking the Wireshark DNS packets. I can see that there's a DNS query from the host, and then DNS response from the DNS server. Everything is just as expected. However, if you ...
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-1 votes
1 answer
2k views

504 DNS Lookup failed with domain-user, working fine with local user

I just set up a DNS Server on my Windows Server 2012 R2 DC and joined my PC into this domain (test.local). But now I a DNS error when trying to access an Web Application from another domain (eg. ...
1 vote
3 answers
1k views

Order of external DNS servers on Router OS DNS Server

We have DNS server on our Mikrotik (RouterOS 6.36). [admin@xxx] /ip dns> print servers: 10.0.10.3,8.8.8.8 dynamic-servers: allow-remote-requests: yes max-udp-packet-...
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2 answers
398 views

How to remove a deleted ZSK from BIND?

I set up my (authoritative) BIND nameserver for DNSSEC and installed one ZSK for my currently only zone. In order to test if I can use multiple ZSKs for a single zone, I generated a new key pair and ...
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1 answer
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VirtualBox / MAAS Port Forwarding [closed]

i have 4 VM's in VirtualBox on an Ubuntu 17.04 desktop computer, which is connected to a MAAS subnet. each VM is configured with Apache and OpenSSH, for one of 4 domains i have. my problem is that i ...
0 votes
1 answer
797 views

Windows DNS server randomly responds/times out

I have a Windows 2008 server running DNS server (it's also the domain controller). DNS resolution is not working properly: it's sporadic. From this server's command prompt, a NSLOOKUP sometimes ...
1 vote
1 answer
280 views

Creating vanity nameservers without hosting DNS

We'd like to create our own vanity nameserver addresses to use with various domains that we host. Our hosting provider gives us two options: use their nameserver addresses, or setup our own ...
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-2 votes
1 answer
1k views

Multiple DNS Servers on One IP Address

I currently have two public facing DNS servers running simultaneously, which share the same public IP address. I need them both to be accessible over TCP/UDP port 53. I was thinking that since they ...
user avatar
3 votes
0 answers
9k views

Centos bind DNS server configuration with ipv6

in order to APPLE , after 1 June all applications must support the ipv6 so i need to reconfigure my ios app. So i create a local network with ipv6. My topology is below. i configured bind 9.8 on ...
2 votes
2 answers
5k views

Keep the same IP and host name for new domain controller as crashed one

Because of some disaster I have lost my primary domain controller and thanks god that I had secondary domain controller so I could provide the service to the computer and save my data. After that I ...
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8 votes
1 answer
28k views

Windows DNS Server register a non **DHCP** client (server) into 2008R2

We have Linux boxes with static IP, some using Centos and other Debian, using IP ranges reserved for development and testing. We need this boxes to 'publish' their DNS into DNS Server 2008R2, ...
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