Questions tagged [nslookup]

nslookup is a utility to query DNS name servers

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nslookup: connection timed out; no servers could be reached

All of a sudden, my server (Debian Buster) can no longer connect to DNSs. When I try nslookup, it fails: $ nslookup www.google.com ;; connection timed out; no servers could be reached I'm not ...
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How to query site DNS A-Record?

nslookup -type=ns b92.net a.root-servers.net I got this Server: a.root-servers.net Address: 198.41.0.4#53 Non-authoritative answer: *** Can't find b92.net: No answer Authoritative answers ...
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Issues with DNS & SMTP with my Domain while setting webmail on my premises

My domain is worldlightingservice.com I've been able to work out a lot of issues that I had from searching on https://mxtoolbox.com/ (A records, dns, smtp, blacklist and many others) but I'm not able ...
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Ubuntu Server name not visible on network

We have two Ubuntu servers on our local network, juliet which is a 16.04 and lima which is running 19.04. From a computer on the network lima can be reached using name (such as ssh lima). But juliet ...
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How to get my public ip using powershell

I tried using nslookup but I'm unable to parse the result : My current output : nslookup -norecurse myip.opendns.com resolver1.opendns.com Serveur : resolver1.opendns.com Address: 208.67.222.222 ...
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Windows Server 2012 DNS returns a useless tautology

For one hostname - myaccount.cargowise.com - our Windows Server 2012 DNS seemingly returns a useless and tautological answer; it resolves myaccount.cargowise.com to itself without providing an IP ...
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If the domain is banned in a region, would one be able to find a domain using nslookup?

If I were to use nslookup in a geographic region for a domain that is banned in that region, then would it be able to resolve the domain name to an IP address? Suppose, I use nslookup for "www....
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1answer
725 views

nslookup result for google.com

I am quite new to the networking world! I was tweaking with some networking concepts and I found that we can use DNS for load-balancing by having multiple records in a DNS name server. So I ran a ...
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2answers
409 views

Can I get all the virtual IP addresses given the CNAME

Is there a way to find all the aliases of the host? $ nslookup x x is an alias for y y is an alias for z z has address 192.0.2.45 So if I have z, is there a way of using nslookup/host/dig commands ...
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Different nslookup answers on different clients in local network with local DNS

Situation: I have a few clients in a local network. I have a server named amp003 with IP address 192.168.4.13 I have two DNS servers (each one on relative DC server). On client 1 I did following: ...
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1answer
36 views

Why does my website's locally retrieved name server appear different from one retrieved online?

My website is not resolving correctly, so I checked the name server via nslookup in PowerShell and see bodis.com. Then I checked online, hoping I checked the same name server, and see domaincontrol....
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1answer
69 views

How to identify the server providing a DNS response?

TL;DR: Where, in a nslookup www.somedomain.com -debug will I find the name/IP of the server(s) which reply to the chain of queries? Details: I have a setup (Windows 10 machine) which is connected ...
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112 views

Get DNS 'Additional section' using Windows (nslookup option?)

I can use dig to get the full master file output of DNS info, and for my problem I am interested in the information in the "additional" section: $ dig example.com ; <<>> DiG 9.9.4-RedHat-...
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1answer
68 views

Add new column to the existing one PowerShell

I have list of the servers, for them I'm used commands Resolve -DnsName, this command has different parameters and to receive all the data that I need (NS, MX, CNAME, A) records, I need to make ...
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314 views

Does the DNS response order matter in nslookup? [closed]

I've implemented a DNS relay program on Windows. I got 3 DNS query every nslookup command, PTR, A and AAAA. I reply the type=A query first, and reply PTR/AAAA query few microseconds later. But I got ...
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1answer
49 views

can ping website but not enter it

I currently have two server {A;B}. A is hosting a IIS webpage, and B is trying to access it. I am able to access the page within server A (No problem since it is hosted there).. I have altered the ...
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1answer
2k views

Server2016 - nslookup - Default Server

i have only a question about nslookup and Default Server.I have two primary zones on my server: 1. pedf.com 2. test.cz When I start command NSLOOKUP, I see that the Default Server: server.test.cz .....
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1answer
158 views

nameservers reported by whois cannot be found by nslookup

The nameservers of my domain are listed correctly on the whois entry: whois destiglobal.com | grep NS gives the following result: Name Server: HEATHER.NS.CLOUDFLARE.COM Name Server: OWEN.NS....
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Issue with nslookup on virtual machine

I have a Unitrends backup virtual machine running as a virtual machine. I also have a Windows Server running as a virtual machine. I can ping anything on the network from the Windows virtual machine. ...
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1answer
210 views

Dns nx domain in cmd but page loads in browser [closed]

When running nslookup google.com in cmd on my corporate laptop I get nxdomain but how come does the page open then in my web browser? Can anyone please explain? Thank you.
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1k views

NSLookup Requires “.” in all queries

I am not sure what happened but after reinstalling Windows DNS (server 2012 r2), when I do an nslookup and enter any domain it appends my domain to the end. For example: I enter "microsoft.com" and ...
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2answers
1k views

How do I figure out what's wrong with my DNS record?

My network admins have created a DNS record for thedigitalteacher.com which should include an A record for the domain root pointing to 5.10.124.142, which is indeed the response I get if I use our ...
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3k views

How does “nslookup -ls” work?

I've been going through the 4th Edition (2001, yes, very old) of the O'Reilly "DNS and Bind" book, and it keeps talking about nslookup, which seems to be relatively hard to get one's hands on in this ...
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337 views

Server switch: Check DNS TTL values

Can somebody let me know if from the below results from using dig https://toolbox.googleapps.com/apps/dig/#ANY/ What is the correct TTL value? as I see 2 different ones: id 10958 opcode QUERY rcode ...
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1answer
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server can't find 2.0.9.10.in-addr.arpa: NXDOMAIN

I have set up a VPC peering between two different project's VPC on GCP and it works fine when i ping my vm-instance and i'm also able to ssh to my instance with private ips. However, if I query it ...
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2answers
1k views

Different hostname to ip resolving results (nslookup)

Good day, everyone. Let's say I have a following setup: Windows 7 as host machine, DNS 192.168.0.100, 8.8.8.8, 8.8.4.4 Ubuntu 16.04 as guest machine on VirtualBox, DNS 192.168.0.100 (host?) ...
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1answer
2k views

Route53 subdomain not resolved with nslookup

My problem I am trying to build a personal CDN to share static file with my contacts. The design includes an S3 bucket, a CloudFront distribution and a subdomain registered via Route53, all ...
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Windows 2012 R2 DNS SERVFAIL on linux / mac clients

SERVFAIL is causing issues with some of our applications on linux/macs. I presume this is Windows DNS causing some problems with our linux/mac clients? Then again Windows clients are able to do ...
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3answers
28k views

Find out which DNS server answered your query

I have a seemingly simple question but couldn't find the answer to precisely that question after some search: I know that, if I want to look up the IP address of some domain name, I type, for example: ...
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2answers
7k views

How can I verify Windows DNS forwarders are working?

I thought I knew how to do this, but I guess not. Even the d2 debugging in nslookup doesn't show the actual forwarder being queried. So...let's say I set up DNS forwarders in a Windows DNS server ...
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1k views

What an nslookup command return if multiple sites are assigned to the same IP

I read in a book that nslookup command is used to find the IP address from a domain name and vice-versa. And domain name are just the names given to the IP Addresses as it is easy to remember names ...
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1answer
509 views

How to find internal DNS records that are pointing to an IP

Ive got a number of internal DNS records that have been setup to point to a test web server. Its been a while since they were setup and I want to see whats pointing to a particular server. So I have ...
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1answer
3k views

nslookup returns 192.168.1.1 for www.google.com

I have a machine with 2 network interfaces on it eth0 and eth1. I want to use interface eth0 for internet and eth1 for my intranet communication which is connected to a internal router. The internet ...
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1answer
216 views

nslookup returns different IP than $_SERVER['SERVER_ADDR']

Without knowing much about system administration, here is in short what I noticed: running nslookup the-site.com returns some IP but running $_SERVER['SERVER_ADDR'] on that site returned different IP. ...
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1answer
469 views

Garbage DNS record

nslookup returns 2 IP addresses for one of the clients in my network: Server: dc.mynet.local Address: 192.168.43.1 Name: fileserver.mynet.local Addresses: 192.168.43.2 192.168.45.2 ...
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2answers
82 views

2 networks, but name resolution fully works only for one network

I have a Windows 2012 Server with DNS configured, on vmware workstation. Name Server is "ad.nuglab.local", with "Host (A)" record of 172.16.202.109 and 192.168.1.111 On my host PC, with dns server ...
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1answer
749 views

What's the magic incantation to force DNS queries over TCP on an Amazon/AMI image?

It looks as though the resolv.conf option use-vc is being ignored on an Amazon AMI (latest 2016.09 version). Consider the following: [hadoop@ip-172-20-40-202 ~]$ cat /etc/resolv.conf search default....
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2answers
86 views

Debian Jessie NS LOOKUP ip

When i use command nslookup 192.168.1.1 or (my real ip address) back this: 1.1.168.192.in-addr.arpa name = 1.1.168.192-my-net.net I want to change name with my website example 1.1.168.192.in-...
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1answer
269 views

Cannot resolve hostname of devices connected to a wireless network using ip address ** server can't find x.x.x.x.in-addr.arpa.: NXDOMAIN

I'm trying to resolve the hostname of devices connected to my wireless lan network through their ip addresses. I'm using a macbook and my /etc/resolv.conf show this as my dns server (192.168.1.1) ...
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2answers
505 views

Unexpected mail exchangers from nslookup [closed]

I'm working on Windows 10 and I want, for example, to get the MX server of the site achab.it. Asking for nslookup -type=mx achab.it, I am expecting to obtain: Server: anyres1.fastwebnet.it Address: ...
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2answers
486 views

Multiple reverse DNS record internal DNS

A user was having trouble connecting to the internet, some sites worked some sites did not. I do not think it has anything to do with networking gear, but just in case. 2 firewall, Palo-Alto 4 ...
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1answer
509 views

How to send a DNS query with Additional RR?

How to send a DNS query with additional RR included? (from a host to DNS server)
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1answer
258 views

dig gets answer from bind9, but host, nslookup and postfix don't

I have just upgraded my working email server from Ubuntu 14.04 to 16.04, which caused many issues. One of the issues I couldn't resolve is this: I run a caching bind9 DNS with a pretty standard ...
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1answer
134 views

Perform authoritative DNS A record lookup with single command?

To get the authoritative A record for the apex of a domain I'm using: $ nslookup -q=ns example.com Server: 194.168.4.100 Address: 194.168.4.100#53 Non-authoritative answer: example.com ...
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1answer
475 views

Mail client continues to use old MX record after TTL expired; authoritative entry missing

I changed MX records at my domain name provider (network solutions) twice today. One test client is still sending mails to the older record even though its TTL has expired. So, in other words, this is ...
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2answers
1k views

Server 2012 DNS server not resolving all forward lookup zones

Name resolution is failing for a handful of zones at only one site. It had been working fine, but stopped at one site recently. We are using DNS to restrict access to Youtube (see here) so we have a ...
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0answers
286 views

Why is DNS lookup slow to specific domains only?

We're running Windows DNS servers, but they are not authoritative. So we point to caching servers as forwarders. That said, for the following two domains we get a rather long delay in DNS lookup IF ...
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2answers
13k views

nslookup not resolving hostname

I can't seem to get nslookup to resolve correctly. Here is my hosts file: [root@clc-host ge2011.11]# cat /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 ...
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1answer
1k views

Trying to figure out why nslookup is giving me two different IP addresses

I'm pretty new to the world of computer science and ran into something that I'm having trouble understanding: I have this homework assignment asking me to list the IP address produced by using the ...
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2answers
1k views

Can't resolve hostname by ip address over nslookup [closed]

I've got an Ubuntu Server on my LAN. I can fully use it (samba, ssh, apache2, xmpp...) by using it's ip address. But I want to use the hostname to connect (e.g. ssh). When I do a nslookup with the ip ...