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Questions tagged [dns]

Translates domain names to IP addresses. DNS stands for Domain Name System.

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how to fix quad zero in nslookup queries?

I'm a qualified network technician (CCNA,MTCNA, MTCRE) and majoring in informatics, but this case baffled me. system : Windows 10 Pro x64 output from ipconfig /all Wireless LAN adapter Wi-Fi: ...
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Route53 does not route domain to S3 bucket [migrated]

I have set up a static website by following this link: https://docs.aws.amazon.com/AmazonS3/latest/dev/website-hosting-custom-domain-walkthrough.html I can see the website by accessing its bucket ...
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1answer
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Understanding Namebench Response Distribution Chart

After a long test I get this result: As a final number I see that Google Public DNS is 171% faster than my current DNS, but when I look at this picture I see that SYS-192.168.0.1 the fastest in... ...
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1answer
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How to use two server for one domain? [on hold]

Noob question,sorry if it's duplicate! I have a host from Hostinger and a Dedicated Server [ Win Server 2012 ] . What I Know : I completely know how to create DNS Server , Create Name ...
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1answer
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Is this how I indicate that only my MX IP is authorized to send email for this domain?

I would have a TXT record as such: v=spf1 mx -all which translates as "only my MX IP is authorized to send email for this domain"? NOTE: I don't want A records to be able to do so, since my web ...
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1answer
15 views

Point domain to a computer inside LAN

Is it possible to, for ex.: point domain.com to 192.168.1.10 point domain2.com to 192.168.1.11 inside my LAN network? Or even more with port forwarding: point domain.com:80 to 192.168.1.10:5000 ...
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28 views

How do I get a PTR record for an MX that points to a different IP than the A record does?

MXToolbox indicates a warning that my smtp server's header banner fails to match reverse lookup for the stated domain. This makes sense - I've got a domain with the MX set to one IP (my mail server), ...
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34 views

One ip, several subdomains on several virtual machines

I don't have a lot of knowlege on administratino but here is my situation: I have a big server with only one IP address. On this server I have 9 virtualbox machines. I want all these domains to ...
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2answers
34 views

Windows 10 can't connect with any browser except Tor

About two weeks ago I started having connectivity issues on my Windows 10 machine. Chrome, Firefox, Edge, and Steam will fail to connect to a site in nine out of ten attempts. Tor Browser has no ...
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1answer
37 views

How to Create your own Domain Name after forwarded my server through my router?

I have set up my own web server with Ubuntu server 16.04, I am actually using another laptop for testing the web server. To have access locally, I have: Router 192.168.1.1 Server ...
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Why “Connection-specific DNS Suffix” is only (default) available for wired connection, not for wireless

I understand what and how to set "Connection-specific DNS suffix", and I mostly understand the purpose. My question is just about why only certain network connection/adapter has it by default (even ...
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What is RDDS service and how to query the RDDS service

When I search whois data for some domains for example, liquid-solutions.biz, I get the following: Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output ...
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DNS lookup fails only on specific sites while using Arch Linux

The title gets to the core of the problem. I will provide more information though. I am running an install of Arch Linux on my laptop, and up until recently everything was going fine. I am was using ...
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2answers
44 views

DNS record setup on Digital Ocean and GoDaddy [closed]

I am currently setting up a subdomain of a domain I own, to point to a Digital Ocean droplet I am renting out. In the Digital Ocean dashboard, there is a place to add A and NS records. But there is ...
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14 views

List resolvers in windows machine [closed]

My windows machine is able to resolve some domains which my linux machine can not. How can I list the DNS resolvers of my windows machine, so that I can reuse that list in my linux machine?
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My Wi-Fi completely messed up after installation of KDE connect

I need help to restore my Wi-Fi and DNS settings to previous state like was before installation of KDE connect. Now I have unstable Wi-Fi (every few minutes disconnect), I can ping, mtr from terminal ...
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1answer
27 views

Upgrade 'dig' on Mac OS

It seems I have accidentally broke the dig command on my Mac. Now I have version 0.1.10, how can I safely update this? I can't seem to find any documentation on updating the internally loaded dig ...
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Android wifi (oreo) dropping. Because of pihole? [migrated]

First of all, my apologies if I'm posting in the wrong forum. I'm a bit lost in the SE galaxy. But since my issue is quite complex and specific, I feel this is the best place. Let me know if I'm wrong....
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1answer
28 views

Get DNSmasq to redirect local network requests to server on network

I have a server on my network. Accessing it from devices outside the network by domain name works perfectly. Some devices though, like my phone, connect to the network by wifi, and when they do, they ...
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1answer
64 views

Can't access some sites with any browser on windows 10 on a particular isp

I can't access some websites like edx.org,onlinesbi.com,whatsmydns.net on chrome,firefox or edge on windows 10 brand new pc (can be accessed over tor), when tried to access through a particular isp ...
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1answer
43 views

VPN over Shadowsocks: DNS not working

I am currently in China. Usually I use Shadowsocks or a VPN to access the outside/filtered internet. However, due to some requirements I need to access the outside internet by using VPN over ...
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1answer
26 views

Unable to resolve URL locally to several devices

I have a domain name attached to a DDNS. It's pointed at my house and I have three systems that are running a web server using the default ports, and two other ports. I used to have AT&T and this ...
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1answer
31 views

If a WHOIS search returns 428 domains on the nameservers for that domain, does that mean that server is hosting 428 domains? [closed]

I've just done a WHOIS search on whois.sc for our company domain and the nameserver section says that our nameservers "(has 428 domains)". Does that mean there are 428 domains hosted on the same ...
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1answer
37 views

Can the nameservers point to 2 different providers?

We are in the process of moving our emails over to Office365, they are currently stored in Gmail. The concern we have is that between the different employees and timezones, if we change the ...
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DNS_PROBE_FINISHED_NXDOMAIN error, but clearing the cache doesn't solve it

I have a Debian Stretch system. Since I tried to configure one old network printer it happens that loading the web page in any browser ends with error DNS_PROBE_FINISHED_NXDOMAIN. I tried clearing the ...
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2answers
100 views

How can I be sure that I get an authentic response of a requested IP address?

Normally you perform a login to your ISP using the given user credentials. You then get allocated an IP address and get access to their internal name servers, so that you can ask for a certain domain ...
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1answer
29 views

DNS server for home network without using resolv.conf, google dns, nor transfers

I have tried using bind9 and dnsmasq. I also set the server machine to have a static ip address. The OS is Ubuntu 18.04. I want to access the domain on Windows 7 and 10 machines. I have tested, and my ...
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29 views

Windows Server Essentials 2012 resolving DNS to IPV6

I am having an issue when I ping the server by name it resolves into an IPV6 address. I have disabled IPv6 resolution in the DNS settings on the server, then reset the DNS service on the server and ...
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1answer
33 views

How to know primary and secondary DNS servers for IPv6?

In my router's WAN page, it says my Primary and Secondary DNS servers are 84.xx.xx.xx which belong to my ISP's DNS servers. However, my router is connected to IPv6 and lists my DNSv6 server as fe80::1 ...
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21 views

Which IP as dns server for vmware nat config?

Unfortunately I don't seem to understand how NAT on vmware works, so I'll start by describing my setup: Vmware guest with a linux system, ie fedora. It has a static ip configured from the NAT ip ...
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1answer
52 views

Using local unbound DNS server for Strongswan VPN connections

Idea: I would like to use unbound DNS installed on the same server as VPN solution, to block ads and similar unwanted sites with DNS for all VPN connections. Currently unbound is set up for local ...
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I am not able to run a DNS spoof attack using ettercap on Virtual machine Setup using Oracle virtual box

I have to create a DNS spoof attack on virtual machine's network . I am using oracle virtual box and have setup kalilinux and ubuntu as virtual machines I am following this link https://null-byte....
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1answer
23 views

Website redirects to old hosting on computer but to new hosting on phone

I recently migrated the DNS settings of my website to a new hosting provider (Google Firebase). After 48 hours, the website gets indeed redirected when I visit it on my phone. On the computer however ...
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1answer
29 views

Answer type mismatch query type with dns Dig tool

When I did dns domain query with "dig @server domain type" [root@centos ~]# dig @8.8.8.8 www.google.com aaaa ; <<>> DiG 9.9.4-RedHat-9.9.4-61.el7_5.1 <<>> @8.8.8.8 www.google....
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33 views

DNS 127.0.1.1 not working because of an unknown issue

I have an internet connection through Ethernet LAN cable (connected on interface eth7). My Ubuntu OS shows that internet is connected. However, when I search on the browser, page shows that I am not ...
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202 views

How can I duplicate incoming DNS packets and send them to a different nameserver with iptables? [migrated]

EDIT: the tldr: I want to use TEE and NAT to clone UDP traffic. I'm not worried about handling responses. I ideally don't want to install new software. I am using TEE to send to local segment (127.0.0....
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1answer
38 views

fritz.box faulty hostname resolution after (presumably) dhcp renew

I have a macOS 10.13.6 client connected to Fritz!BOX running Fritz!OS 06.83 Suddenly, an application using TCP stopped working, and I traced down the cause to this: $ hostname myself.fritz.box the ...
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69 views

OpenVPN --allow-pull-fqdn Not Working

Below are the base settings of the client.ovpn file, being run on Windows 10 via OpenVPN GUI. client dev tun proto udp remote <vpn_address> <vpn_port> resolv-retry infinite nobind persist-...
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3answers
115 views

can't access website by ip but I can access by fully qualified domain

So it seems I can't browse a website by IP, but I can browse using it's hostname. C:\Users\c>nslookup www.example.com Non-authoritative answer: Name: cx-cdn-bre.gss.consultix.net Addresses: 62....
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0answers
29 views

Using “net view” on a domain through VPN [migrated]

on a laptop (win7) I'm connected through VPN (IPsec, with the Sophos VPN Client) to a network with a domain server (Server1012 and mixed clients Win7 and Win10 all connected through the same LAN-...
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1answer
33 views

nslookup not working but ping and traceroute with ICMP does work fine

In the network I am having troubles with, nslookup against dns server 1.1.1.1 with google.at. does not work, but a ping to 1.1.1.1 is successfull. Also a traceroute does work, but only with ICMP ...
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1answer
37 views

Dynamic DNS registration of a client by the DHCP. How is the record updated?

With dynamic DNS where the clients are registered by the DHCP server, I cannot figure out, from where the DHCP server gets the clients name? I mean the DHCP server just offer clients ip-numbers right? ...
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1answer
36 views

installing webmin on an existing bind server

I want to use webmin to allow some less experienced administrators to easily create A records if they are needed. Will installing webmin with the DNS module affect the operation of my currently ...
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mx records issues with plesk

Hi I have two domains they both have a A records to the same ubuntu server with plesk. One of the domains uses a mail Server on the same ubuntu plesk server. The second domain has its dns mx record ...
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1answer
21 views

Closing all UDP traffic except DNS resolution

This is my iptables settings: -P INPUT ACCEPT -P FORWARD ACCEPT -P OUTPUT ACCEPT -A INPUT ! -s 87.27.77.107/32 -p tcp -m tcp --dport 21 -j DROP -A INPUT -i eth0 -p udp -j DROP -A OUTPUT -p udp -j ...
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2answers
66 views

Windows 10 laptop can only open Google.com and Youtube

I since yesterday experienced a very strange problem: my Windows 10 Dell laptop can only open www.google.co.uk (also www.google.com) and Youtube, nothing else. I get a "Connection was reset" error ...
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1answer
33 views

Which DNS in the world receives chages from propagation?

When I change my ip number, the change is propagated to many servers in the world, but I assume not to every DNS in the world, so which one? If my domain is thomas.dk, it is clear that the DNS for ...
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2answers
73 views

How to browse the internet with the home IP while traveling. (connect to the home network and use home IP)

I am using my laptop (windows 10) to login to a website that is checking my (public) IP. Every time my IP changes or when I am traveling or I am away form home, I have to do a time consuming process ...
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2answers
37 views

Can't resolve ip by hostname on archer C7

I'm trying to access devices by using their hostname, like ping hostname, however since I switched to archer C7 I can't do that. I tried to enable DNS service how I can't find it in the UI. It is ...
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2answers
52 views

The DNS is a liar?

When I logged into a site I noticed that the DNS had sent me to a completely different site than usual. After observation, I noticed that there was a dot after the domain name, I remove it and then I ...