Questions tagged [nslookup]

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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 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 ...
0 votes
2 answers
13k 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: ...
2 votes
2 answers
17k 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 ...
0 votes
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 ...
1 vote
0 answers
116 views

host and nslookup can resolve hosts, while dig and systemd-resolved return NXDOMAIN

I am trying to connect to a public WiFi. As it is common (at least in Europe), the WiFi is an open network, but after connecting for the first time, the local DNS server already resolves any domain ...
0 votes
1 answer
139 views

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
218 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
189 views

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 vote
1 answer
3k views

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 vote
2 answers
95 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: ...
244 votes
9 answers
986k views

How can I direct a query to specific DNS server?

I would like to issue a query to a specific DNS server, whose IP address I know. It doesn't really matter if it's on Windows or *nix. In Windows I can do something like: C:\Documents and Settings\...
0 votes
2 answers
236 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....
0 votes
2 answers
716 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 ...
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 ...
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 ...
1 vote
1 answer
1k 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 ...
9 votes
2 answers
188k views

Why does nslookup return "DNS request timed out"

I was using a public computer on some public network and wanted to see how nslookup worked there. I tried set type=ns for some web-site and got this message: DNS request timed out. timeout was ...
1 vote
1 answer
1k 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 ...
4 votes
4 answers
24k views

Windows nslookup: Do reverse DNS lookup in one step?

A lot of times I need to see if a host's reverse DNS matches the A record it's associated with. So, what I do is nslookup superuser.com followed by nslookup 64.34.119.12. Is there a way to get ...
6 votes
4 answers
33k 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 ...
0 votes
1 answer
3k 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....
0 votes
0 answers
288 views

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 votes
1 answer
277 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 ...
2 votes
4 answers
7k views

NSLookup Has Stopped Working (Won't Start)

NSLookup on Windows 10 x64 (10.0.14393) cannot be started anymore. Earlier today, I would be greeted by the prompt after running nslookup from CMD. Now, I am greeted with this screen: The program ...
0 votes
1 answer
323 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 ...
3 votes
1 answer
41k 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 ...
0 votes
0 answers
1k 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 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 ...
1 vote
1 answer
3k 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?
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?
0 votes
1 answer
79 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:...
1 vote
2 answers
8k 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,...
-1 votes
1 answer
233 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.
10 votes
1 answer
38k 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 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 ...
0 votes
1 answer
8k 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 ...
1 vote
2 answers
1k 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 ...
-1 votes
2 answers
11k views

nslookup command showing error "connection timed out, server not found"

I am working on linux fedora and trying to learn use of nslookup. I run the command nslookup. It showed me dns server. when i run nslookup mail.yahoo.com, it works fine in that case also. but when i ...
0 votes
1 answer
101 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 ...
1 vote
1 answer
1k views

nslookup change standard server permanently

I've configured bind 9 in my local network environment to make management of servers a bit easier. However, nslookup requires the manual option of "server={x}" in interactive mode, because the default ...
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 ...
0 votes
2 answers
13k views

Ping resolves hostname but can't access website

I'm having an issue with a Windows Server where it can ping a specific hostname but has no HTTP access to it. The server does have internet connection (google.com, superuser.com, etc), it's only two ...
0 votes
1 answer
965 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 votes
1 answer
501 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 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....
2 votes
1 answer
14k 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'...
2 votes
2 answers
3k views

OSX - Using different DNS for different network interface

I've an OSX Mountain Lion system and, if it's possible, I need to use different DNS servers for different networks. I'm going to explain my situation: I'm at work. I'm connected to work network (by ...
0 votes
1 answer
485 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 ...
3 votes
1 answer
18k views

what does it mean if nslookup and ping fail to resolve a host name but tracert does not?

This problem concerns an internal DNS server that for some reason sometimes fails to resolve the host names of some machines on the network. When it fails to resolve a host name, and this can happen ...