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Questions tagged [nslookup]

nslookup is a utility to query DNS name servers

nslookup is a utility to query DNS name servers. It has two modes: interactive and non-interactive. Interactive mode allows the user to query name servers for information about various hosts and domains or to print a list of hosts in a domain. Non-interactive mode is used to print just the name and requested information for a host or domain. It is available on several systems like Unix-like systems and Windows systems.

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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 one of these? From my observations it seems to…
silent
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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 works fine, where the local DNS uses 1.1.1.1. I've…
Geoff Vass
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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.html or…
Badger
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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 192.168.95.0/24 IP of Server - 192.168.95.1 IP of…
Patel
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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 making requests that increased usage data for a…
samtech 2021
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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 the client-name in the same subnet it gives me a…
Nastermind
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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: +cmd ; Transfer failed. However, when I add…
Teererai Marange
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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
Evant Prasetyo
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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._tcp.Tech.xyz.com SRV service location: priority…
Arthas
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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 against the reverse zone 2.10.10.in-addr.arpa, some…
Insights.AI
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ping returns IP from hosts file but not nslookup in windows 10

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 is being done to our domain name. This has been…
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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 guides (like this one or this one) to get through the…
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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 missing here? Here's what I'm doing on my Windows…
Kohányi Róbert
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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 which runs the pod however has an internet…
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