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Questions tagged [nslookup]

nslookup is a utility to query DNS name servers

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1answer
39 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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2answers
176 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
40 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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0answers
56 views

Why can't I find the IP address of mongodb.net?

I am using MongoDB Atlas to host my database. I want all traffic from site destined for Mongo Atlas to use a NAT Gateway with a static IP address, so that in Mongo Atlas I can whitelist that IP. The ...
0
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1answer
500 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 .....
1
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1answer
39 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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0answers
64 views

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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0answers
204 views

DNS lookup fails on Windows Server 2012 virtual machine

I run this VM through VMWare Workstation 12 Pro on a Windows 7 host. The host connects to the internet through a mobile phone connection. Today, the vm cannot do DNS lookups, it seems. It worked ...
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1answer
64 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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2answers
239 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 ...
8
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2answers
979 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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1answer
791 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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1answer
152 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
508 views

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 ...
1
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2answers
248 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?) ...
2
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1answer
838 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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0answers
208 views

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
8k 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: ...
10
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2answers
3k 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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2answers
468 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
220 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
2k 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
61 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. ...
1
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1answer
199 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
68 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
219 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
70 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-...
2
votes
1answer
132 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
300 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
299 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
328 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
164 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 ...
1
vote
1answer
56 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 ...
1
vote
1answer
235 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 ...
2
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2answers
526 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
205 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 ...
2
votes
2answers
7k 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
370 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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votes
2answers
963 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 ...
6
votes
2answers
3k views

My domain on AWS Route 53 wont propagate

Hi have created a record set for the domain: lazycatthemes.com on Route 53 (domain was purchased through route 53) and gave it the 4 NS settings that Route 53 told me to configure: ns-368.awsdns-46....
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votes
1answer
553 views

Can't query most DNS servers from ESXi guests

I'm having some issues doing DNS lookups against most DNS servers from the guests on my ESXi 5.5 host. I'm saying most because I can do DNS lookups just fine against the DNS servers I've configured ...
0
votes
1answer
6k views

BIND DNS nslookup NXDOMAIN

I have BIND DNS server installed in my LAN on Linux CentOS on IP 192.168.0.30. I also have HTTPD Web server installed in my LAN on Linux Centos on IP 192.168.0.23. My /etc/named.conf file is ...
1
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0answers
54 views

In a BIND.. Weird DNS issue

I have now somehow replicated a weird issue with one of my DNS zones on two different servers and with two different versions of ISC BIND. I have a sub-domain delegated to my server. The first time ...
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2answers
811 views

nslookup picking up wrong address

All of my client machines are picking up the incorrect server address when using nslookup. I also get the incorrect DNS Servers when using ipconfig /all C:\Users\>nslookup Default Server: ...
2
votes
3answers
38k views

Finding all aliases for a server

Our network admin is away at the moment. I'm trying to find all aliases attached to a given server on our network (actually a number of servers) After googling around it seems like nslookup might do ...
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votes
2answers
100 views

How and why should I serve a 404 when my site's static ip is directly requested?

I am trying to improve the production environment on my website's server. I notice that many sites do not have an IP address that is directly accessible, yet it looks like my site's IP is accessible. ...
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votes
1answer
164 views

Wrong IP when issuing nslookup - Windows DNS Server [closed]

I recently setup a Windows Active Directory server for Home use. (for learning purposes) Now I have the following problem when using nslookup on a connected client: http://s17.postimg.org/vcfivvmkf/...
2
votes
2answers
282 views

Bind Server issue: Can not nslookup from client when DNS Master is down, but still can connect to Internet

I setup 2 Bind servers on Ubuntu Server 14.04. The first one is Master DNS and the second is Slave. I have a DHCP server running isc-dhcp-server and assign 2 DNS Server IP for clients Everything seem ...
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0answers
740 views

why is a wget to http://graph.facebook.com resolving to my server's IP?

This makes absolutely no sense and I spent 3 hours trying to figure this out. Suddenly all my scripts connecting to Facebook stopped working, so I tried to do this: root@s01 [~]# wget http://graph....
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1answer
997 views

Google DNS returns SERVFAIL for domain [duplicate]

Hope someone can help I know the basics of DNS setup, am having an issue with my hosting company. Have several domains hosted, DNS settings are basically setup by the hosting company using their ...