Questions tagged [nslookup]
nslookup is a utility to query DNS name servers
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What is the effect of the '-v' flag to the Windows nslookup command?
I'm trying to debug a problem in which my Windows host resolver will not
resolve a particular DNS name (FQDN).
I notice that if I call the Windows nslookup command as follows,
nslookup x.y.z.cloud
(x....
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Resolve-DnsName resolves hostname of IP, but nslookup fails
There are some IP address that nslookup can't resolve (both on Windows and Linux).
Problem:
I can find the IP of the hostname, but reverse lookup fails.
PS C:\> nslookup.exe somehost2
Server: ...
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3
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271
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Google Public DNS always returning NXDOMAIN for certain SLDs
Problem: Google's Public DNS returns NXDOMAIN for certain SLDs.
Proof of problem:
dig vpn.example.com @8.8.8.8
; \<\<\>\> DiG 9.11.5-P4-5.1+deb10u8-Debian \<\<\>\> vpn....
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0
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Vultr firewall opened ports by anonymous party. nslookup of open IP address shows non-authoritative answer "name = noptr.midphase.com". Was I hacked?
I am running a cloud server on Vultr.com. Recently, I logged into Vultr.com in my web cloud instances web interface and checked my firewall. I noticed that port 53/udp had been opened in the vultr ...
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How does one query the resolver name of a DNS server?
The Shodan search tool, for some DNS servers, shows a Resolver name value for what it finds on UDP port 53. For example, 80.82.117.140 shows Resolver name: server402.xenserve.com and 103.81.27.118 ...
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nslookup responds with NXDOMAIN even if the name is being resolved
I've got the postfix configured to relay all emails to a mail server:
$ cat /etc/postfix/main.cf| grep relayhost | grep -v '#'
relayhost = smtp.local.lan
The problem is that postfix is not able to ...
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1
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ISP and Google Public DNS can resolve hostname, but local Windows 10 machine cannot
I recently updated the DNS records for the hostname armatureenergy.com. When I do an nslookup for it with Google Public DNS (8.8.8.8) and my ISP's DNS (206.55.176.101), the name resolves. But when I ...
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What is the difference between DNS Lookup and DNS Resolution?
I have traversed through many websites, tutorials, documentations or personal blogs; yet, I couldn't find an exact and clear (scientific) definition (or distinction) of these two:
DNS Lookup process
...
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BIND 9 DNS: NS/glue closest delegation used
I have the following example existing delegation:
iio.ne.co.uk NS dns1.iio.ne.co.uk, dns1.iio.ne.co.uk HOST 1.2.3.4
If I add a new delegation:
soho.iio.ne.co.uk NS sohodns.iio.co.uk, sohodns.iio.ne.co....
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How does a client pick a NS server out of multiple possibilities?
When a client attempts a DNS resolution, let's say for google.com, often multiple NS servers are returned, like:
ns2.google.com.
ns1.google.com.
ns3.google.com.
ns4.google.com.
How does a client pick ...
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0
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499
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Nslookup suddenly won't resolve against Cloudflare
As of Friday afternoon Australian time, I'm getting failures using nslookup with 1.1.1.1. It works fine with 8.8.8.8, and Powershell Resolve-DnsName works fine. nslookup without specifying a server ...
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Nslookup server: unknown between VLANs/networks?
I have several VLANs/networks - eg.:
10.0.10.0/24 : Servers
10.0.20.0/24 : Pcs
My DNS server is called "DC1.mydomain.local" (IP 10.0.10.11) and I have a PBX server called SVPBX (IP 10.0.10....
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DNS client vs Nslookup - doing a manual test of the DNS client for SRV records
There are various references (such as DNS can't resolve hostname; nslookup can or https://web.archive.org/web/20160525082756/http://homepage.ntlworld.com/jonathan.deboynepollard/FGA/nslookup-flaws....
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AWS Route 53: Transferred domain to new account - Now getting SERVFAIL
I recently transferred a domain buymy.coffee to a new account. When I did this, I deleted the hosted zone in the old account and recreated it in the new account. I thought I got this right, but when I ...
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2
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376
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Fedora Server NSlookup error when running DNS
So I have 2 VMs (Fedora 24 Server and its Client).
I am trying to run DNS in Server and get output in Client.
The DNS of my client is IP of Server, All of them are on same Class of network with is 192....
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1
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109
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If I want to use dig/nslookup to query about machines in a VLAN, how can I find which name server to use?
If I want to use dig/nslookup to query about machines in e.g., 38.102.145.0/24, how can I find the name server to use that could resolve machines in that VLAN?
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Unusual traffic Issue in AWS
I've observed some unusual traffic from an IP address from Nov 9 through Dec 10 in our application logs. We're not seeing the ip address associated with any of our instances currently. This IP was ...
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Can't ping non-domain joined client by name from subnet but Name and IP appeared in addresslease on dns server
is it posible to resolve the name of a non-domain joined device by ping? the dns server has registered the device. name and Ip are registered in addresslease.
Ok, this is what I have tried:
If I ping ...
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0
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467
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nslookup not retrieving authoritative answer
I'm trying to get an authoritative answer using nslookup but it's not working
$nslookup animeflv.net matt.ns.cloudflare.com
Server: matt.ns.cloudflare.com
Address: 108.162.193.131#53
Non-...
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0
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286
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Dig only able to do zone transfers when +nocookie flag is enabled
I am learning about DNS enumeration and I am working on a lab exercise at the moment. To do a zone transfer, I entered the following:
dig @10.83.185.5 example.com AXFR
the result is
;; global options:...
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2
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215
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Why my Windows DNS Server automatically add more TLD (.co.id) when i try to find domain using nslookup?
When i search a domain like google.com, nslookup automatically add more TLD (.co.id) to domain that i've looking for. How to fix it?
Screenshoot nslookup on my windows dns server
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513
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Interpreting my LDAP nslookup output
C:\Users\myuser1>nslookup
Default Server: ns-xxx.xxxx.com
Address: 1xx.xx.x.x
> set types=all
> _ldap._tcp
Server: ns-xxx.xxxx.com
Address: 1xx.xx.x.x
Non-authoritative answer:
_ldap....
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1
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Win2016 DNS Manager nslookup returns Default Server: Unknown
I have a Windows 2016 server running as a Tertiary Domain Controller and the issue I'm seeing is that when I run nslookup from the DNS manager it returns 'Default Server: Unknown' with the correct ...
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Why is the reverse zone name appended to the returned domain names in reverse DNS lookup?
Not sure if I missed something when I set up the PTR records for the hostnames on FreeIPAv4. We use FreeIPAv4 to manage the identity and policy on the LAN.
When I conducted the reverse DNS lookup ...
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ping returns IP from hosts file but not nslookup in windows 10 [duplicate]
We host our application in two data centers. During a production update, we point the customer traffic to datacenter1 and test the update by adding datacenter2 IP in our hosts file, where the update ...
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3
answers
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Why does "nslookup -type=mx YAHOO.COMYAHOO.COMOO.COM" return a valid mail exchanger?
For the first one it returns:
Non-authoritative answer:
YAHOO.COMYAHOO.COMOO.COM MX preference = 5, mail exchanger = mail.h-email.net
Also if you just duplicate the tld like
C:\Users\dmorri>...
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Standard Windows Server 2019 wizard setup with AD, DNS & DHCP does not resolve any DHCP client names
I am working myself through learning and setting up a pretty standard Windows Server 2019 (Essentials edition) serving as an AD PDC, DNS- & DHCP server for a very small network. I followed some ...
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8.8.8.8 returns NXDOMAIN randomly for all our subdomains
Our customers make quite a few domain checks towards Google public DNS with the following domains <userid>.sip.teltel.io, but they often fail. To others, like Cloudflare it is always successful.
...
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1
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Why do dig, host and nslookup return different results?
It seems my default (router) DNS server returns different results depending on the tool used to query it.
Using dig:
$ dig @192.168.1.2 test.example.com
; <<>> DiG 9.16.8-Debian <<&...
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Understanding TTL values in DNS query answers using dig
I'm querying google.com with dig and I'm having a hard time understanding why TTL values sometimes jump around instead of decrementing every second uniformly (which is my expectation). What am I ...
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Kubernetes through Virtualbox; Pods can't access internet services
System:
VirtualBox, Debian 10 Server, Kubernetes with kubeadm
I've setup a deployment and a service and I am exposing it via NodePort but my Pods somehow cant access the internet. The worker node ...
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0
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How to lookup DNS Record in specific zone
For example I have a zone example.com and someone created a dotted hostname app.subzone which resolves to app.subzone.example.com in it.
Now I create a new zone subzone.example.com and an record appin ...
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2
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nslookup is showing different ip address for subdomains [closed]
I recently moved my web service to a new host. In the new host when my clients access www they get a message saying the SSL is not correct. Under my investigation, I found a problem with the name ...
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How can I map a service in Google Cloud Servers?
I am in the process of making our application into smaller services. I add the new services on a back end server (i.e. not accessible to public) and then make entries in /etc/hosts file of our web ...
google-cloud-platform
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1
answer
1k
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dnsmasq gives a correct response then a connection time out
When trying to nslookup to my dnsmasq dns server I get the correct IP address and then I get a connection timed out : no servers could be reached message. Any idea what is happening here and if I can ...
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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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2
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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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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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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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3
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0
answers
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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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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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509
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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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0
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2
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588
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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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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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527
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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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1
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57
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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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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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