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0
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4answers
2k views

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 ...
2
votes
2answers
53 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 ...
0
votes
1answer
38 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: ...
0
votes
1answer
217 views

OpenVPN client nslookup failure after disconnect

Currently I am trying to route my traffic through a gateway running Debian Linux which forwards all incoming traffic thorugh a VPN connection (Client -> Gateway with OpenVPN client -> VPN server -> ...
0
votes
1answer
432 views

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 ...
0
votes
1answer
312 views

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 ...
0
votes
1answer
182 views

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: ...
0
votes
1answer
167 views

nslookup ambiguous results ok after change dns records?

I've never changed public dns records before, I'm not really sure if this is normal because of DNS cache or if It's a real problem so I need your help. 8 hours after I changed the A record of the ...
0
votes
1answer
104 views

Concise set of rules for discarding DNS responses, or portion therein

Problem statement It is possible for any name server on the internet to become "Authoritative" for legitimate, and illegitimate zones. For example, I can add microsoft.com to my internal name ...
0
votes
1answer
214 views

semicolon in DNS name when nslookup resolving CNAME

I am running two Win2k3 and one Win2k8 DNS servers (and AD) in the same domain, country1.company.com. The DNS servers all have a secondary DNS zone for the AD domain country2.company.com. The two AD ...
0
votes
1answer
682 views

Windows 2008 R2 DNS cant resolve own SOA

We have two Domain Controllers for our network. They both run DHCP, DNS, and ADS. They are both VM's sitting on MS Hyper V Server 2008 on separate physical hosts. We had our primary DC go down a week ...
-1
votes
1answer
34 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 ...
-2
votes
1answer
280 views

Configuring DNS server on Windows Server 2012 R2

I have successfully setup a DNS server on my local virtual machine and its running and I've mapped 2 public IP's with my domain name (****.com). I also created reverse lookup zones which basically map ...
1
vote
0answers
28 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 ...
1
vote
0answers
199 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 ...
1
vote
0answers
108 views

Some people can access and nslookup my website but some others cant?

I am having a very weird problem with my server. Most people and myself can access normally without problem but some others report they cant and the only way they can access is through proxies and so. ...
0
votes
0answers
268 views

nslookup is OK, but curl says Couldn't resolve host

curl -L https://github.com/docker/compose/releases/download/1.3.1/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose % Total % Received % Xferd Average Speed Time Time ...
0
votes
0answers
117 views

Nslookup not showing the updated records. Cached?

In Linux server it does not show the updated entry which should be a public IP. I installed nscd and restarted it to see if it'll flush. Its a squid server, fyi nslookup subdomain.domain.com ...
0
votes
0answers
190 views

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 ...
0
votes
0answers
241 views

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 ...
0
votes
0answers
89 views

How to diagnose flaky nslookup/bind9?

BACKGROUND I have a long running DNS (bind9) server running on Ubuntu that works most of the time (from Ubuntu, Win8 or OSX): $ nslookup gitserver Server: 127.0.1.1 Address: ...
0
votes
0answers
811 views

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 ...
0
votes
0answers
618 views

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 ...