Questions tagged [dns-server]

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34 views

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 ...
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0answers
34 views

Is it necessary for Name Server to really exist so that Glue records stick?

I have setup my own DNS server (Windows Server 2019) and defined my own name servers as ns1.example.com and ns2.example.com. My DNS server is fully functional and responsive to DNS queries. In the ...
0
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1answer
23 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 ...
1
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1answer
97 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....
0
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1answer
136 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 ...
2
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0answers
77 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 ...
2
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0answers
375 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 ...
0
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0answers
30 views

Single Server/Domain Controller - DNS Conflict

I have installed a server with Server 2016 Essentials, to act as a DC for a simple network comprising 4 client computers plus printers, scanners, etc. The network is connected to the internet by a ...
-1
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1answer
55 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. ( ...
0
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0answers
238 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, ...
11
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2answers
1k 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 ...
0
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1answer
193 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
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3answers
617 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-...
0
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2answers
109 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 ...
0
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1answer
141 views

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
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1answer
320 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 ...
0
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1answer
113 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 ...
-2
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1answer
689 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 ...
3
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0answers
6k 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
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2answers
2k 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 ...
5
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1answer
15k 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, ...
5
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1answer
82 views

Windows 2012 DNS server phase out

I've got a network with 3 AD servers that also run the DNS service. We've got a project on to migrate from Windows DNS to a new turnkey DDI solution. I'm going through everything I can think of ...
0
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0answers
479 views

DHCP Server Dynamically Updating DNS on Other Server (Both Windows 2012 R2, No AD)

We have had a single Windows Server 2012 R2 server (with no Active Directory) running DNS and DHCP for our main network for a good few months with dynamic DNS updates from DHCP working fine. We have ...
0
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1answer
49 views

DNS lookup works locally but won't go online

I had registered amraei.com 2 years ago. Recently hired a VPS and setup a DNS server using BIND to host it on my own server. I installed Webmin and setup BIND 9 on CentOS 7. As the setup finished, ...
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0answers
30 views

Clinet-side solutions to prevent DNS amplification without rate limiting on an open DNS server? [duplicate]

Are there alternative ways to operate an open/forwarding DNS server, without having to use rate limiting or other means of traffic inspection to prevent being used for DNS amplification attacks? ...
2
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3answers
17k views

Can't Remote Desktop To Windows Server 2012 R2

I have just demoted our Windows Server 2012 Domain Controller. Removed all services, and then did a fresh install of Windows Server 2012 R2. I gave the server the same IP address and host name that it ...
0
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1answer
164 views

What are the implications of using a default DROP rule on a public DNS server

RHEL 6.6 authoritative DNS server. Right now in IPtables I have the INPUT chain defaulting to ACCEPT. :INPUT ACCEPT [0:0] I have been having some issues with it being attacked lately and I am just ...
0
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1answer
409 views

Does TSIG and DNSSEC provide encryption of entire DNS packet?

it says TSIG and DNSSEC provide authentication. Does it mean whole DNS traffic would be encrypted so if I do packet capturing I would not be able to parse anything ? Or DNS data is still plain text ...
2
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4answers
2k views

Localhost or real hostname (real IP)

Lets suppose that I need to send data from one services to other on the same host. For this I can use localhost:port or real.domain.name:port (lets think that it cached or can be resolved by local dns)...
0
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1answer
60 views

What should be my DNS settings?

I have a samba server and it is on the same network as the clients which I want to connect to the servers domain. The problem is that it doesn't seem to see the server. I can access its web server ...
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1answer
141 views

AD and DHCP in one server and have 2 diffrent network

I have two lans every one should use individual internet line : First is 10.10.10.0 255.255.254.0 topology: router connected to switches and have one sever connected to same switches server act as:...
0
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1answer
1k views

DNS configuration Windows Server 2012 R2

First of all I would like to say that my background is software development, saying that, I'm trying to help a friend set-up a small network in is office company. I have a windows server 2012 r2 that ...
1
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1answer
123 views

Is it possible for a Windows server to have 2 (or possibly more) network names (or aliases)?

I have a temporary need to consolidate 2 currently separate servers onto a single machine. I am considering using VMs, but it would be far less work if I could just have 2 different server names point ...
1
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1answer
469 views

Public domains and hosts resolving to 127.0.0.1

Our security systems are going crazy alerting us that hundreds of external DNS queries and responses are resolving to addresses like 127.0.0.1 and sometimes 0.0.0.0 to requests originating from our ...
-1
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2answers
54 views

Can a DNS server (specified by its IP address) be spoofed?

When a DNS server is specified (in my case in OS X, in the Network Preferences), can it be spoofed (for instance by an organization with the power of a government)? I am asking the question because ...
0
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2answers
4k views

Setup Azure VM - Connect to internet

I'm basically a total novice in the area of VPN's and DNS servers. I have an Azure VM which I have created and I need to connect it to the internet, and googling sends me to pages where peoples ...
1
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1answer
6k views

Missing SRV record at DNS server

Server 2008R2. 2003 functional level. One of my branch DCs, which we will call BranchDC1, is not registering SRV records in example.com/_msdcs/gc/_sites/_tcp. The DC is marked as a Global Catalog in ...
1
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2answers
47k views

unable to start the bind dns service in linux

observed following errors when try to start the dns service in virtual linux pc [root@mininat ~]# service named status Redirecting to /bin/systemctl status named.service named.service - Berkeley ...
4
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2answers
11k views

bind9 configure forward zone for local domain without DNSSEC for this zone only

I have a working DNS server for local domain mydomain.local. I am trying to configure bind9 to work in default configuration, except for this zone, for which I want to forward queries to local DNS ...
0
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1answer
81 views

Contact DC from a client without DNS

I have read Can I create a DC without a DNS Server?. But my question is a bit different. I have one client in a completely different subnet from the DC. That client does not have access to the ...
21
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2answers
5k views

How is a single IP address load balanced?

I'm aware of "round robin DNS" load balancing, but how can a single IP address be load balanced? Google's DNS servers for example, 8.8.8.8 and 8.8.4.4. Wikipedia's load balancing article states: ...
0
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1answer
544 views

DNS server with scripting [closed]

I would like to know if there's any way of having a DNS server on Linux that runs a script and reply a different IP list depending on the script data returned. I've searched Google for 'DNS server ...
0
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0answers
356 views

DNS server for DMZ

Servers are in a different subnet like 192.168.1.0/255.255.255.0 and there is a NAT for internet access. For example if one of my web servers ip is 192.168.1.100 inlocal then 5.5.5.100 will be my ...
1
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1answer
423 views

Windows SBS 2011 Clients Randomly Unable to Access .co.uk Domains

We are a small office with 10 client PCs and one Windows SBS 2011 server acting as Domain Controller and Internet gateway. At random times client computers cannot access Internet hosts in the .co.uk ...
8
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5answers
10k views

Can I have my DNS server and my web server on the same IP? [closed]

I just bought a raspberry pi and made it a web server. I have a network with 1 IP. I created a DMZ and I am able to access my raspberry pi web server from the internet. I bought a domain that I intend ...
9
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1answer
2k views

Small issue with the Domain Name System (DNS) Server Cmdlets

I'm wondering if I need to clear some cache or something with the issue I'm having. I'm trying to remove A records from a DNS Zone and replacing them with a CName record that has the same host name. ...
0
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1answer
123 views

How to refer DNS queries to another NS?

A domain of mine, example.com, is handled by NS server1 (as configured in the domain registrar). But now I want it to be handled by a different NS, say server2, without changing the NS in the domain ...
9
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4answers
35k views

Openvpn client, force DNS server

Our Linux Ubuntu configuration does have a DNS server (Bind 9). And resolv.conf has its nameserver 127.0.0.1 When using openvpn client on that Linux, the nameserver is not changed (by the VPN ...
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1answer
112 views

name server IP vs web server IP [closed]

I'm doing a course on an introduction to networks and I'm struggling to visualise certain aspects of the domain name system database. (if that is worded correctly?) For example, if you perform ...
-2
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1answer
575 views

domain-search value on my clients computer [closed]

I need help with configure my DNS and DHCP server - I have spent some time searching on google but have not got any informations regarding my problem. I have an Ubuntu 12.04 server running and use ...