Questions tagged [dns]

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

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How often does the secondary DNS for Google's DNS service get used?

I recently noticed that the previous network engineer at our offices had input the Google DNS as : primary 8.8.8.8 and secondary 8.8.8.4. The secondary DNS had a type in it, and should have been 8.8....
sam's user avatar
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DNS lookup with MacOS ignores answers from DNS server

I have configured my home network with its own DNS server (I run dnsmasq on my server, which runs Ubuntu server 16.04). This server also runs DHCP and tells clients that it is the DNS server. My DNS ...
Nick Sillito's user avatar
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Why do dig, nslookup, and host cause named to have errors?

I installed bind 9.11.0-P3 on a Macbook Pro today, along with the latest hints file. It launches during boot and does not exit. However, it does not seem to be caching, and it logs lots of errors. ...
WGroleau's user avatar
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To what extent is the DNS used outside of the World Wide Web? [closed]

I understand that it is vital for web client-server communication, however is the DNS used for other inter networked communications for example video streaming or online gaming? If so how is it used?
Daniel.H's user avatar
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Automatic network domain translation

I have a small problem. I have a bunch of links which point to an intranet (with an intra-intranet domain). I'd like to access these links from outside the intranet, and there is already an internet ...
frarugi87's user avatar
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Windows 7 stops sending DNS packets at seemingly random times

Pinging an IP directly (and just about any other direct IP connection) seems to pass through. On the other hand, when pinging a domain, using chrome to enter a website or attempting to use nslookup ...
Bharel's user avatar
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Cannot send / receive mail to host server, but IMAP/SMTP login authenticates in mail.app

I have Mac OS Server on a Mac mini. I have set up my own custom domain, and I have created a mail account on the server. The domain is registered with google, but for public DNS I am using afraid.org ...
Rhys's user avatar
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Windows 10 DNS setting sporadically reverts to old (incorrect) address

This is a problem that occurs often (but not always) on my Windows 10 laptop... I turn it on and connect to a wi-fi network; and I get the icon that means "connected, but no internet". When this ...
Russ Lenth's user avatar
3 votes
2 answers
450 views

Is setting up a backup domain controller as simple as adding AD DS to an existing server on the network?

I've recently been tasked with setting up a "backup DC" for our business. Currently we have a physical machine running DC and two ESXi hosts running various VMs for our email and file server etc. ...
MindExplosion's user avatar
3 votes
2 answers
594 views

A weird DNS issue

I have a weird DNS issue in my PC - Windows 8.1 using Ethernet connection. The DNS server stop to response after ~30 min, When in other devices everything works. When I ping direct IP, everything ...
user2970756's user avatar
2 votes
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How to resolve dynamic dns domain to internal ip WITHOUT NAT Loopback OR DNS change in /etc/hosts?

I've set up a nextcloud server on a raspberry pi at my home which I can access from outside my wifi via a noip dyn-dns domain. From inside the network I can't use the domain though since that resolves ...
steffres's user avatar
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Why does a chromebook call out to these non existent domains?

Is this one of their forms of checking for a captive portal or what?
Spyderz's user avatar
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1 answer
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How to increase the DNS TTL time in Windows 10?

How can I increase the DNS TTL time in Windows 10 through registry? Right now it's way way too low. superuser.com ---------------------------------------- Record Name . . . . . : superuser.com Record ...
user15124's user avatar
2 votes
1 answer
3k views

Routing subdomains with AWS and Route 53

I am following these instructions from Amazon: http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/CreatingNewSubdomain.html#CreateZoneNewSubdomain As I need to route a subdomain to a GitLab ...
Lee Probert's user avatar
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2k views

How to forward IP between 2 interfaces in ubuntu server 16.04 LTS?

I am preparing ubuntu router with 2 interfaces enp2s0 (Connected to ISP WAN) enp2s8 (internal LAN network and DHCP server and DNS server) my interface configuration (/etc/network/interfaces) is : ...
Bikram's user avatar
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if one nameserver goes down, does that periodically reduce query performance?

If I have multiple NS records for a zone, and one of those authoritative name servers goes down for an extended period of time, does that occasionally slow down all queries because the recursive DNS ...
user1748155's user avatar
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1 answer
501 views

Computer can't reach to 192.168.0.1

Everything was fine yesterday, but tonight my computer can't access internet though eternet/Power Line Communication (PLC). My other equipment are doing fine on wifi, I just can't reach my box (192....
Acammm's user avatar
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How to make my home BIND bypass ISP's DNS filtering?

everyone. My ISP filters DNS requests. How exactly -- I don't know. To avoid (or, at least, mitigate) this issue, I installed my own BIND on 192.168.3.1. Here is my configuration: logging { ...
Vladimir Nikishkin's user avatar
7 votes
2 answers
2k views

Cannot resolve websites intermittently (mostly .gov)

We are using Windows Server 2012. Sometimes we are unable to resolve .gov websites. When we check with the following commands, they do resolve, so we know that the .gov websites are available. ...
Bobort's user avatar
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1 answer
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DNS Hijacking or just censorship?

I go to a school where the internet is censored by Fortiguard. My school just upgraded their system, and I believe there is some sort of DNS hijacking involved. Whenever I try to change my DNS ...
Bernard Tam's user avatar
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1 answer
2k views

Use raspberry pi to spoof dns

I wish to use a raspberry pi as a sort of man in the middle, between my laptop and the internet. I was hoping to connect to the pi by ethernet, and then use a second ether net adapter (usb) to connect ...
CWright's user avatar
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Setting DNS servers on a VPN adapter in Windows 10 has no effect

I am connected to a VPN but Windows seem to completely ignore the VPN's DNS server - all names resolve to the same IP as they do when not connected to the VPN, including those that should resolve to a ...
David's user avatar
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What's wrong with my SRV record?

So, I've managed to make up and running my dns services. One of my goals was to create and test the SRV records for minecraft but it doesn't seem to work. So first question is maybe : does ...
vigilian's user avatar
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DNS not working in firejail

I try to make a test ssh firejail user for testing downloaded files. But the name lookup for my setup is not working. /etc/passwd: UserName:x:9999:9999:,,,:/home/UserName:/usr/bin/firejail /etc/...
FrankStein's user avatar
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2 answers
262 views

Unable to ssh into same machine unless manually adding `.local` to the hostname

I am using a clustering tool (hadoop) running locally that must be able to do passwordless ssh as follows: ssh $(hostname) On my mac laptop this does not work. Here are pertinent entries in the /...
WestCoastProjects's user avatar
1 vote
1 answer
2k views

How can I use DD-WRT to resolve multiple hostnames to one IP address?

How can I set up DD-WRT (or anything else) such that I can have various hostnames all point to various different Nginx projects on the same local server? I have a wifi router with DD-WRT. I'm a ...
Ryan's user avatar
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5 votes
1 answer
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Change DNS search order on Mac El Capitan

I've got a router that is also running a DNS that contains names for machines on my local network. It is set up to forward requests, so for any public machine it will reach out to the DNS provided by ...
Brick's user avatar
  • 191
1 vote
1 answer
2k views

Route 53 DNS. No nameservers provided an SOA record for the zone

Using dnsstuff report on my domain, I get: No nameservers provided an SOA record for the zone. You should configure your nameservers to have a master slave relationship. The update of the zone ...
Ted Scheckler's user avatar
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1 answer
14k views

BIND9 DNS SERVER - Lots of failed queries with SERVFAIL and EDNS references

I am running my own BIND9 server which is running on a arch linux in my local network. Since running the server I started getting various errors in my browser (chrome on android 6). These errors ...
Sven M.'s user avatar
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Do 2 different domains come from the same origin if their Name Servers are the same?

It is easy to conclude that x.foo.com and y.foo.com are from the same origin. However, there are cases that a.com and b.com are also from a same origin although their domain names are different. For ...
4253wyerg4e's user avatar
4 votes
6 answers
15k views

Bizarre caching of "dead" DNS entries; where is this cache stored?

This has really got me stumped. Advanced IP Scanner has the ability to show "dead" entries—devices that were at some point visible on the network, but which are no longer reachable. ...
user541686's user avatar
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3 votes
2 answers
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How to configure a long SPF record for UDP?

I have an SPF TXT DNS record that's too long to be served via UDP. It validates over TCP, but that's not as performant as UDP. I know that TXT records can be broken into multiple lines. How should ...
ponies's user avatar
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Can you use a DDNS service to have a static "connection from address"?

Im familiar with using a DDNS service like dyn or noip.com to map a "static" memorable address to a dynamic IP address, which allows you to access a router / device for VPN, viewign CCTV etc. If that ...
sam's user avatar
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How do I configure my own DNS Server?

Okay. I've been researching for over an hour now and I did not find any useful help. What I'm essentially looking to do is, I want to create a custom DNS Server (just like google has 8.8.8.8, but not ...
mehulmpt's user avatar
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1 vote
1 answer
373 views

Other than DNS and /etc/hosts, where else might host information come from on a Mac?

All names and addresses changed. example.com is a domain I own. % ping foo.example.com PING foo.example.com (1.1.1.1) 1.1.1.1 is an IP address I have never heard of. Same for others programs (ssh, ...
Johannes Ernst's user avatar
0 votes
1 answer
482 views

Flush DNS cache on mac not working

I have setup a github pages repo and linked my custom domain to the pages site. When I open the custom domain mrmtech.co.za on another mac I get the site that I'm looking for. However on my mac it ...
Gerrie van Wyk's user avatar
0 votes
1 answer
613 views

Intermittent DNS problems

I have intermittent DNS issues running Windows 7. I tried switching ports on my modem, switching cables and it didn't work. I have Google's DNS servers configured. I'm sure this only happens on my PC ...
Guido's user avatar
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0 votes
1 answer
1k views

Make Windows VirtualBox guest follow Mac host DNS resolution

I already have a custom domain name entry on my Mac's /etc/hosts file that I use for local testing. I'm able to connect from a browser using http://dev.mysite.co:5000. 127.0.0.1 dev.mysite.co 127.0.0....
Seán Hayes's user avatar
3 votes
1 answer
3k views

Why does Windows 10 seem to ignore the DNS query replied from my router?

I have an OpenWRT router. I have added few entries to the /etc/hosts file on the router, to block the users from accessing some of the websites. Recently, I have upgraded a computer to Windows 10, and ...
user1556811's user avatar
1 vote
1 answer
2k views

how do i setup maraDNS in windows7 as forwarding DNS server for 2 zones : the intranet and the default (aka "everything else")

I am trying to setup maraDNS on windows 7. All in all I want the google DNS to resolve everything (zone "1" so to speak) apart from everything in the intranet domains, which as served by an intranet ...
nass's user avatar
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1 answer
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Using Azure AD (same domain local & external): website won't load from location connected via SonicWall VPN

Recently configured Azure AD for an Office365 client, using the same local/internal domain as their external website. (i.e. we are using "domain.com" as the Azure AD/Office365 domain, and also using "...
Matthew Long's user avatar
0 votes
2 answers
978 views

Bind DNS Server set root NS

I will setup a local DNS server for domains under my authority. I will configure this DNS server as default on my LAN. Say there is a DNS request for a domain outside my authority. From what I know ...
xuma202's user avatar
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2 votes
1 answer
134 views

Cannot access host neither through DNS or direct IP address

Here's my problem: I have a Java web application that uses Stormpath API for user management. The communication with this API is through HTTP. Out of nowhere my API call hanged and returned after 3 ...
Bogdan Mihai's user avatar
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2 answers
38 views

If I port forward a computer with my router, is the public IP static?

I need to know this for DNS purposes. If I can, I could create a good home server.
Zooza S's user avatar
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2 votes
2 answers
9k views

Tp-link router DNS issue

In my home I have an internet connection in the wall (female) from where my internet is provided. A couple of months ago I used a D-link router to spread the internet in the home. Sadly they D-link ...
Olba12's user avatar
  • 23
0 votes
2 answers
70 views

Lots of sites timing out and strange IP request

I have been having website / DNS issues in the last 12 hours only. Sites are timing out or response times are slow. It sometimes takes a few attempts to get even a small page. This occurs not just in ...
user3791372's user avatar
0 votes
0 answers
730 views

I can visit any website BUT the google search website

Somehow, out of the blue when starting my day I started getting errors when trying to search things by typing them into the chrome searchbar. I got the same error when manually typing in www.google....
user2713516's user avatar
0 votes
1 answer
561 views

Subdomains on VMs to all go through port 80 using Windows Server

Right so I have been trying to set up the following and failed so far :-) Some settings are out of my control, so I need to work with what I have got and hope that this is still possible. My Scenario ...
Jeff Kranenburg's user avatar
1 vote
3 answers
2k views

How to you override the default dns configuration in ubuntu so that nslookup returns static values?

The nslookup, dig and ping return different values for me. I want foo.bar.name to always resolve statically to localhost on my machine. I used the command host foo.bar.name and edited /etc/hosts to ...
fossy's user avatar
  • 11
1 vote
1 answer
8k views

BIND9 cannot resolve local domain

I've been struggling for a few days to configure bind9 to resolve my local domain so I can access it from inside my LAN. Details: DNS SERVER: 192.168.178.46 WEBSERVER (apache2): (A virtualbox ...
Beach Chicken's user avatar

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