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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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PowerDNS authoritative name server works but non-authoritative name server servfail

In my current role as Devops I have been assigned a few tasks that are new to me including setting up a PDNS server with MySQL backend. After initial setup of the server I tested responses from the new PDNS server with DIG and NSLOOKUP while…
jander924
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Oracle GNS (Grid Naming Service) Breaks DNS

Am running a 2-node Oracle 12.1.0.2.0 ASM Flex Cluster using Oracle GNS which I believe uses zeroconf to create it's adhoc network. Before GNS starts, DNS works, i.e. nslookup, dig, ping, ssh all work for both local network and www (e.g.…
gstanden
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Setting up Reverse DNS - SERVFAIL error

I am using Ubuntu Server and installed BIND9 so I could set up a DNS server. I am tying to configure Reverse DNS. Here is my /etc/bind/named.conf.local file: zone "grupolar.com" in{ type master; file "/etc/bind/db.grupolar.com"; }; zone…
João Rodrigues
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DNS Server Failure

I think I have an odd DNS situation on my hands. We have two Windows Server 2008R2 DNS servers that all of our campus machines use. We are unable to get to the site cdbaby.com in any web browser. We can get to other websites, and the cdbaby.com site…
SteadH
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How does netstat get a hostname from IP while nslookup & nblookup fail every time?

In Windows Server 2003, when I run netstat with no flags, it takes much longer than netstat -n to return results. I realize this is because it has to perform reverse lookups by IP address to get the corresponding hostname. There are some rows in…
Nico M
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Why does this name server resolve incorrectly?

Why does this ENom name server resolve incorrectly? Earthlink is related to my ISP. $ nslookup yahoo.com dns1.name-services.com Server: dns1.name-services.com Address: 98.124.192.1 Name: yahoo.com.earthlink.net Address: 69.64.147.243 $…
Chloe
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pinging an unknown hosts from centos resolves

I am seeing very strange behavior with servers running CentOS 6.4 x64. If I run a ping on a host which clearly doesn't exist: ➜ ~ ping sdafsadfdsadfsasdfasdoi.com PING sdafsadfdsadfsasdfasdoi.com.mydomain.com (X.X.X.X) 56(84) bytes of data. 64…
Justin
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Subdomains on Windows Server - nslookup works, ping only with FQDN

I have a Windows Server machine with DNS set up in the following way: Zone: home.local Domain: apache A (same as parent) 192.168.2.4 A xml 192.168.2.4 I want to be able to connect to 'apache' and 'xml.apache', and be…
danbroooks
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Rotary.org DNS Resolution - Server Failure

A user reported to me that they are unable to access rotary.org. This is a fairly major international site, so it seemed a bit strange. I replicated the issue on my machine in different browsers. Rotary.org results in a page not found error. Our…
SteadH
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name not resolve in vmware client PC

I have configured DNS server and DHCP sever on centos 6.2 vmware virtual machine. I have a windows xp vmware client machine. nslookup command is work in server terminal But it won't work in windows xp machine I checked my DHCP server assign correct…
smk
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Is it normal for manual DNS queries on a CentOS server to not return authoritative section details?

CentOS 5.7 On occasion when I'm performing manual DNS queries from one of my CentOS servers, I'll get results back that don't include an authoritative section. For example: [root@foobox ~]# nslookup -q=mx foo2.org 8.8.4.4 Server: …
Mike B
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Why do nslookup result differ when adding www?

See image above depicting different results for google.com and www.google.com. Any ideas why nslookup is behaving this way ?
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nslookup Returning Domain that is a Subdomain of some Default

I'm the owner of a hypothetical domain name, XYZ.com. I have an LXC container setup that exhibits an undesired behavior: $ nslookup non-existent-domain-12345.com Name: non-existent-domain-12345.com.XYZ.com Address: W.X.Y.Z Somewhere, I have a…
BrainCore
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nslookup cannot resolve hostname for machine on external domain from internal domain

Keep in mind, this issue is exclusively for Windows platforms. For a particular company, they have an internal and external domain. One is behind the firewall, and one is in front. I am sitting on the internal domain. I can ping a machine on the…
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NSLOOKUP and NBLOOKUP give one IP address; PING finds another

In a Windows Server 2008 domain the on-site domain controller serves as both DNS and WINS server. It is also a DHCP server. One workstation is used as a platform for all admin of the various servers in the domain. All servers are shut down at…
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