Questions tagged [nslookup]
The nslookup tag has no usage guidance.
112
questions
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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 ...
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 ...
1
vote
0
answers
60
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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 ...
1
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1
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2k
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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, ...
1
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2
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74
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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:
...
0
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2
answers
169
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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....
0
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2
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542
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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 ...
1
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1
answer
956
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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 ...
0
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1
answer
4k
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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 ...
0
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2
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4k
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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-...
1
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1
answer
936
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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 ...
0
votes
1
answer
2k
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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....
0
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0
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248
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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 ...
0
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1
answer
218
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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 ...
5
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4
answers
25k
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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 ...
0
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1
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282
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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 ...
0
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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 ...
0
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1
answer
2k
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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 ...
1
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1
answer
2k
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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?
8
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2
answers
5k
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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?
1
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1
answer
2k
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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 ...
0
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1
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63
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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:...
0
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2
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12k
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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:
...
1
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2
answers
3k
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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 ...
-1
votes
1
answer
216
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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.
3
votes
1
answer
37k
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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 ...
1
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2
answers
7k
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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,...
0
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1
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7k
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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 ...
1
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1
answer
1k
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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 ...
1
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2
answers
920
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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 ...
0
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1
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90
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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 ...
1
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0
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5k
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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
...
2
votes
1
answer
16k
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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 ...
0
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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 ...
-1
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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 ...
1
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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....
2
votes
1
answer
13k
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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'...
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
...
0
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1
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2k
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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....
0
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1
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6k
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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 ...
1
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1
answer
3k
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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 ...
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2
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5k
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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
...
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 ...
0
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0
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115
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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 ...
0
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0
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60
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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, ...
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votes
1
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1k
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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-...
1
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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 ...
0
votes
1
answer
77
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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 ...
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 ...
1
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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-...