Questions tagged [nslookup]

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Internet modem does not resolve resolve local IPV6 hosts, fixed: feature, not bug

I am having fun with creating some small Raspberry Pi web servers with IPv6. However, my Android phone cannot reach those, due to some DNS problem. Here is the situation. I registered a domain name ...
Roland's user avatar
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3 votes
2 answers
101 views

findstr /X keeps printing lines with no matches

I'm using nslookup and findstr in a simple batch script to check if a website is up. However findstr keeps printing lines which doesn't contain any matches. The command goes like this: nslookup ...
Mizuki's user avatar
  • 33
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trying to resolve hostname using nslookup - shows ip's in different order each time

lets say i got a computer named - hostname1 i got 2 ips(2nics) for it. - 192.168.5.5 & 192.168.5.6 when i do nslookup hostname1 it resolves 192.168.5.5 192.168.5.6 if i do nslookup hostname1 again ...
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1 vote
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Arch Linux Domain resolution stopped working

After a system upgrade (pacman -Syu) today, no domain names can be looked up. Networking is working fine, I can "ping 8.8.8.8" and ping "1.1.1.1" which are my DNS servers. However, ...
BrainyXS's user avatar
1 vote
2 answers
74 views

CMD nslookup script returns "timed-out" error

I wanted to write a CMD script to automatically check the MX records for a set of domains (stored in a TXT file) for reporting purpose. When I do the nslookup for a single domain, there is no problem: ...
x0100's user avatar
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2 answers
169 views

Is it possible to find destination content of a DNS record?

Suppose that there are below 2 records for domain example.com : Type Name Content (Destination) SubDomain URL A sub1 185.185.185.185 sub1.example.com CNAME sub2 xxx.another-example.com sub2.example....
AliM67's user avatar
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2 answers
542 views

How to make domain name resolvable globally, not only within AWS' own dns-servers?

I want to publish my own dynamic website using aws. My setup so far: An AWS EC2-instance A dynamic IP linked to that instance A .de-domain name, that I registered using route 53 A hosted zone in ...
slartidan's user avatar
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1 answer
956 views

dig and nslookup results connection timeout for my subdomain.cloudns.nz using 8.8.8.8 as dns but it works for anything else or from somewhere else

when i run dig @8.8.8.8 mysub.cloudns.nz i get this : ; <<>> DiG 9.16.1-Ubuntu <<>> @8.8.8.8 mysub.cloudns.nz ; (1 server found) ;; global options: +cmd ;; connection timed ...
ben's user avatar
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1 answer
4k views

ping dns works but nslookup fails?

I have an issue with DNS in my current lab environment, this happened after a snapshot recovery on the DC image : Following Screen shows that i can ping google.com but nslookup google.com fails, i ...
Segfault's user avatar
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2 answers
4k views

Nslookup on new Windows Server (localhost)

What do I do if I only get "localhost" "127.0.0.1" when I type in nslookup in cmd. I want another server to show up when typing this command. I already included a Reverse-Lookup-...
RandomGuyAksingStuff's user avatar
1 vote
1 answer
936 views

Why is nslookup on windows so slow?

I have always noticed that nslookup on any windows machine is... slow. Example in powershell: Measure-Command { nslookup superuser.com } TotalMilliseconds : 1318.4933 This typically takes 1.0 to 1.5 ...
Secto Kia's user avatar
  • 113
0 votes
1 answer
2k views

Intermittent nslookup DNS request timed out

My home internet has felt a bit clunky for the last week. If I run nslookup on a site it seems to timeout about 1 out of every 5 times, while working fine the other attempts. >nslookup www.google....
Simon's user avatar
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DNS Resolving failure in Windows but works in other OS

(Caution: The website is in Chinese) I am trying to access a website (http://zp.sesedu.cn). I cannot access it using any Windows computer, including two Windows 10 computers (one Windows 10 home and ...
Chou Tan's user avatar
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1 answer
218 views

nslookup on azure postgres server - output explanation

I created a new postgres database in azure. Lets assume, this database has the server name URL mytestdatabase.postgres.database.azure.com While doing a nslookup on this URL, i'll get the following ...
johndoe123's user avatar
5 votes
4 answers
25k views

How to properly test a local DNS server locally?

Context I intended to set up a local DNS server with Technitium and would like to verify the local DNS server returns the correct response when it is being queried for a domain. It does not work while ...
a.t.'s user avatar
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1 answer
282 views

no outside internet access from machine

Running multiple ubuntu machines. everytime I curl something I get a curl(6) could not resolve host: www.google.com nslookup gives me a time out apt-get update fails with error: Temporary failure ...
Cliff Ribeiro's user avatar
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0 answers
739 views

I cannot access any website other than google by writing its IP address in my web browser

As an initial learner of Computer Networks I am exploring nslookup command. When I paste IP address of www.google.com given to me by my DNS server (which is 8.8.8.8 google DNS) it open the Google's ...
AJ HUNTER's user avatar
0 votes
1 answer
2k views

nslookup from another name server

I need help figuring out why my DNS queries are being refused. So this works: And this does not work: I can perform a DNS lookup of aiit.or.kr from Google DNS (8.8.8.8) however I can't perform the ...
CakeMaster's user avatar
1 vote
1 answer
2k views

nslookup: disable reverse dns lookup on dns server on windows/linux

when you run: nslookup domain dns_server the utility performs a reverse dns on the dns_server, even if a hostname was provided instead of an IP. is it possible to disable that feature?
tturbox's user avatar
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8 votes
2 answers
5k views

What does the # symbol after an IP address mean?

I resolved an IP address from a URL using nslookup and noticed the following: nslookup https://example.com Server 192.168.3.214 Address 192.168.3.214#53 What does the #53 at the end mean?
Linton's user avatar
  • 97
1 vote
1 answer
2k views

Chain arp and nslookup to get hostname for each ip (Win)

I would like to see the name of the devices when i do arp -a. As far as I understand there is no option to do it directly with arp. So I thought that maybe it is possible to do nslookup for every ip ...
Stef's user avatar
  • 11
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1 answer
63 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:...
user3486308's user avatar
0 votes
2 answers
12k views

nslookup and dig error: connection timed out; no servers could be reached - even when specifying server

I'm on Ubuntu 18.04.3 and my internet suddenly stopped working. I can ping local and WAN ip addresses and I have already restarted the network: sudo service network-manager restart These commands: ...
Shayan's user avatar
  • 1,465
1 vote
2 answers
3k views

Windows 10 ping not resolving name but nslookup does

I have a windows 10 machine that is exhibiting some odd behaviour. When I try and devices on my network by name they fail to resolve. However a ping -a of the iPaddress will resolve to the correct ...
Ben Whyall's user avatar
-1 votes
1 answer
216 views

backward nslookup ip in DNS setup centos 8

I setup a DNS server on CentOS 8. But the command "nslookup " has not correct output. The output not contains the nameservers which I set for it.
Arefeh Yavary's user avatar
3 votes
1 answer
37k views

How do I change the default server for nslookup?

So, I have two network cards in my computer on two separate networks. I'd like to have nslookup use slcity server as the default server. However, it automatically chooses sltv. How do I change the ...
plammer's user avatar
  • 45
1 vote
2 answers
7k views

How to get IP address of my proxy server using CMD or PowerShell

I use a proxy application (like Psiphon or ProtonVPN) to connect to the internet. I want to get my IP address that I'm connected to the internet with. I need to use CMD or PowerShell because later on,...
Shayan's user avatar
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0 votes
1 answer
7k views

Nslookup does not resolve IP addresses using the secondary DNS

I have two Ubuntu 18.04 DNS servers and a Windows 7 client in a virtual environment. I have set the Ubuntu servers for clients' DNS. The first one is offline and the second is online. When i try to ...
user1145488's user avatar
1 vote
1 answer
1k views

postfix in docker cannot resolve hostname of relay host

My postfix instance running in a docker container seems to be unable to resolve the hostname of my relay which is outbound.mailhop.org (formerly Oracle and now owned by DuoCircle). Relay fails with ...
everclear's user avatar
  • 121
1 vote
2 answers
920 views

How do I do a reverse DNS lookup from IP address to domain name?

I want to know the source of a server IP address domain name. For example, as shown in the picture, the domain name meping.igamecj.com replies with 20 addresses, so my main question is how do I use ...
liyan's user avatar
  • 13
0 votes
1 answer
90 views

Get sub domain on AWS by IP address

I have AWS Route53 zone hosted for my domain xxx.com. Inside I have A record that maps sub.xxx.com to my server IP 1.2.3.4 How can I find the sub.xxx.com value by just passing the IP? I tried ...
Krzysztof Majewski's user avatar
1 vote
0 answers
5k views

nslookup failures *** UnKnown can't find www.vmware.com: Query refused

I am on a VMware environment. On the host machine I do C:\WINDOWS\system32>nslookup www.vmware.com Server: UnKnown Address: 109.169.85.7 *** UnKnown can't find www.vmware.com: Query refused ...
political science's user avatar
2 votes
1 answer
16k views

Why I can't ping external IP and resolve DNS from this Linux Ubuntu machine?

I am not so into networking and systems engineering. I have an Ubuntu 18.04 VM that is in a network of a client that is 1) Unable to perform ping of addresses external to the network (but I can ...
AndreaNobili's user avatar
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0 votes
1 answer
867 views

DNS redirect to localhost

Is it normal ? I configured in Windows settings the IPv4 DNS of OpenDNS and the nslookup in CMD return for a domain [::1] or 127.0.0.1 from fe80::a63e:51ff:fe58:9ddd I tried the same on WSL and and ...
wxi's user avatar
  • 53
-1 votes
1 answer
463 views

Why does NSlookup return IP address even if the DNS server is fake?

Originally asked in a newsgroup, full log: https://groups.google.com/forum/#!topic/microsoft.public.windowsxp.general/Ll32NWComwY The snapshot shows the DNS answer is truly returned by the fake ...
Lu Wei's user avatar
  • 3
1 vote
1 answer
1k views

Having two IPs for same hostname -- ping is sticking with the old IP and not trying the new IP

I thought there is a 1:n connection between IP and hostnames. However what I get is this [me@neo ~]$ nslookup dozer Server: 192.168.178.1 Address: 192.168.178.1#53 Name: dozer.fritz....
tswaehn's user avatar
  • 121
2 votes
1 answer
13k views

NSLookup not working (Win10)

I'm currently having problems accessing one of my clients servers and it seems that there is probably a problem with the network connection between myself and the server. However one of the things I'...
Dalibor Čarapić's user avatar
0 votes
1 answer
447 views

Why does a nslookup on Amazon's DNS servers return NXDOMAIN?

I ran nslookup on amazon.com and received: Non-authoritative answer: Name: amazon.com Address: 205.251.242.103 Name: amazon.com Address: 176.32.98.166 Name: amazon.com Address: 176.32.103.205 ...
Projjol's user avatar
  • 171
0 votes
1 answer
2k views

why nslookup return a private ip address first

why below nslookup return 10.172.0.1 , what does that mean? nslookup -type=mx www.google.com Server: 10.172.0.1 Address: 10.172.0.1#53 Non-authoritative answer: *** Can't find www.google....
Adam's user avatar
  • 1
0 votes
1 answer
6k views

NSLookup Unable To Resolve Local Computer's Hostname

I went through all of the suggestions here: Windows unable to resolve hostnames I recently discovered that I cannot resolve any Windows host name (i.e., the computer name). For example, if open a ...
Jazimov's user avatar
  • 357
1 vote
1 answer
3k views

Unexpected IP Address When Using NSLookup

My desktop is running Windows 10 Enterprise 64-bit along with an ASUS RT-N56U router. My router's DHCP range is from 192.168.3.2 through 192.168.3.100 and the gateway is at 192.168.3.1. But this ...
Jazimov's user avatar
  • 357
1 vote
2 answers
5k views

Is it possible to show I got non-authoritative answer from which server?

I am not very clear with how the non-authoritative answer is given. For some domains I get this kind of results: root@localhost:~# nslookup > set query=ns > foo.org Server: 8.8.8.8 ...
kdlsw's user avatar
  • 55
1 vote
1 answer
6k views

What's the NXDOMAIN meaning of nslookup?

I use nslookup to check a domain's IP address: dele-MBP:~ dele$ nslookup www.ts111.com Server: 192.168.2.1 Address: 192.168.2.1#53 ** server can't find www.ts111.com: NXDOMAIN but what's the ...
244boy's user avatar
  • 595
0 votes
0 answers
115 views

Multicast name resolution in the latest Win10

Version 1803 (OS Build 17134.590) I haven't found any working solution for the multicast name resolution issue in Win10. I cannot imagine, that everybody started to set-up an own Domain Name Server ...
StrictLine's user avatar
0 votes
0 answers
60 views

Why has one PC suddenly become unable to see one one particular website?

The website is bitbucket.org. I only noticed when a push timeout out. The issue is only on one PC (Win10). Chrome, Firefox and Edge all have the issue. All other PCs' on the network, and an iPad, ...
rossmcm's user avatar
  • 1,576
-5 votes
1 answer
1k views

How do I block domains using the hosts file on Windows?

I used to block domains on Windows using the hosts file like the following: 127.0.0.1 www.cnn.com However, now it is not working and the domains are resolving. $ nslookup www.cnn.com Non-...
Chloe's user avatar
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1 vote
1 answer
291 views

How come this query shows the same address for non-authoritative answers and authoritative answers?

So, if i query slash16.org: nslookup -type=ns slash16.org Non-authoritative answer: slash16.org nameserver = ns-686.awsdns-21.net. slash16.org nameserver = ns-1989.awsdns-56.co.uk. slash16.org ...
koperandus's user avatar
0 votes
1 answer
77 views

nslookup works on 5GHz network but not 2.4GHz

We recently had a power interruption, and our wifi thermostat now has intermittent connectivity. I contacted the thermostat manufacturer, and they said that nslookup has to work for the thermostat to ...
plafratt's user avatar
  • 312
9 votes
1 answer
34k views

Using nslookup with google IPv6 DNS?

I am trying to use nslookup to query google.com with 2001:4860:4860::8888, which is google IPv6 DNS. But I get no response, eg connection. always times out. When I try same procedure just as DNS put ...
MegaManX's user avatar
  • 251
1 vote
2 answers
10k views

NSLOOKUP fails while ping -a and Resolve-DnsName -DnsOnly succeeds

I am trying to complete an nslookup for a number of hosts on an affiliated domain, but all nslookups fail. The usual explanation is that the connection is due to NetBIOS however in this case Resolve-...
radix's user avatar
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