0
votes
1answer
167 views

nslookup requests time out regardless of server - ping is fine

I've been having intermittent internet connection issues for a week or so now. I now suspect that these are just DNS issues rather than connection issues. At the moment I can ping google.co.uk no ...
0
votes
1answer
71 views

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; ...
2
votes
0answers
3k views

server can't find XXX.in-addr.arpa: NXDOMAIN

I am facing problem while configuring BIND DNS sowing server can't find XXX.in-addr.arpa: NXDOMAIN while reverse dns check! everything works on forward DNS lookup but reverse DNS lookup fails. Here ...
0
votes
0answers
65 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 ...
1
vote
1answer
808 views

Why does nslookup return two or more ip address for yahoo.com or microsoft.com?

I am newbie with dns What is the exact reason that some sites report two or more ip address while others report single ip? 1) Is it feature or error in configuration? 2) Is it something related to ...
0
votes
1answer
458 views

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 ...
1
vote
0answers
711 views

OSX nslookup can resolve a lan hostname, but ping cannot? [closed]

I'm having an issue which recurs every few days, whereby ping cannot resolve a hostname on my LAN (but nslookup is able to). This is on OSX 10.9.2 (latest). The machine in this case is called ...
1
vote
2answers
77 views

Why are additional DNS records only returned when the query isn't cached?

I'm trying to track down an issue we're having sending mail to a particular domain. We noticed that we're not getting consistent results from nslookup/dig when querying their MX records, and I'm not ...
-1
votes
2answers
52 views

Cannot get CNAME on DNS to work correctly [closed]

The domain in question is www.photoparata.com. I am hosting it at GoDaddy.com and have it set to be a CNAME to www.miltonstreet.com. When I go to http://centralops.net/co, they have it correct, as ...
0
votes
1answer
82 views

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: ...
0
votes
0answers
333 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
1answer
595 views

dig succeeds, nslookup fails (with dnsmasq as the server)

I installed dnsmasq on a machine of mine (It's a Kubuntu 12.04 LTS), backed only by /etc/hosts (no connection to the Internet until later). Now, if I dig mymachine, I get 192.168.0.1, but if I try to ...
2
votes
3answers
134 views

How to get pairs of name server - ip for some domain? [closed]

I want to get pairs of name server - ip for some domain. For example, there is serverfault.com domain. I want to get: NS1.SERVERFAULT.COM - 198.252.206.80 NS2.SERVERFAULT.COM - 198.252.206.81 Is it ...
-2
votes
1answer
59 views

How to get ns records that are registered to ip adress

I have ip ranges. I would like to find ns addresses that are pointing to corresponding ip adress I'm looking for a command to do over nslookup or dig Expected result ...
0
votes
1answer
104 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 ...
3
votes
1answer
464 views

DNS lookups with/without recursion in NSLOOKUP

I am playing around with NSLOOKUP trying to learn about recursive DNS lookups. I am looking up a bogus host name and I seem to be getting the same results whether I enable or disable recursion. With ...
0
votes
1answer
43 views

Trouble with DNS configuration

I'm having trouble with DNS configuration for a domain and do not know how to trace it properly. From trying to troubleshoot with nslookup, it seems as though the authoritative NS are never being ...
0
votes
1answer
72 views

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. ...
0
votes
3answers
3k views

nslookup fails but ping succeeds for nonexistent domains

I have two different FreeBSD servers (different hosting companies), both exhibit this same behavior: They pick a specific IP address (216.239.120.238) for every domain that does NOT exist. nslookup ...
0
votes
0answers
269 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 ...
3
votes
1answer
691 views

Google Public DNS is returning a SERVFAIL for my domain

Hope some one will help me in resolving the issue. My Domain name is "prohosterz.com" Google Public DNS is returning a SERVFAIL for my domain: $ dig prohosterz.com @8.8.8.8 ; > DiG 9.9.2 > ...
1
vote
1answer
66 views

Why do I sometimes (but not always) see “internet address” data for an MX record in output for nslookup queries?

CentOS 5.x I've noticed that sometimes I'll see "internet address" for an MX record in the output of nslookup. This doesn't happen all the time though. For example, let's say that foo.com uses ...
0
votes
1answer
83 views

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 ~]# ...
0
votes
1answer
62 views

Why do nslookup result differ when adding www? [closed]

See image above depicting different results for google.com and www.google.com. Any ideas why nslookup is behaving this way ?
0
votes
1answer
94 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
399 views

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 ...
-4
votes
1answer
579 views

Unable to change the workgroup of the server to domain name [closed]

I am unable to change the workgroup of the server to my domain name on the DC The following is the error i get... Note: This information is intended for a network administrator. If you are not ...
0
votes
1answer
128 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
3answers
2k views

DNS searching with wildcards?

Anything like nslookup or dig offer the ability to search based on something contained in the name ... like a wildcard search or something? I'm trying to make a little script with a GUI wrapper for ...
0
votes
2answers
133 views

I keep getting this when typing in nslookup. I`m also having problems connect desktops to domain

I`m trying to connect a server my current domain. So far I just have server 2003 on the system with no roles. This server will act as a backup or a application server in the future. My other server ...
2
votes
2answers
844 views

Why is nslookup and dig giving me a “Warning: ID mismatch … got 0” error?

I'm trying to troubleshoot some persistent connectivity issues and I'm frequently getting the following error message when using dig or nslookup. bash$ nslookup > www.google.com ;; Warning: ID ...
0
votes
2answers
96 views

Testing new nameservers using dig

I have a domain, example.co.uk, and it has its nameservers registered with the registrar as current-nameserver.co.uk. It has a TXT record with value ORIGINAL. I decide to change DNS providers to ...
4
votes
2answers
1k views

What are all the possible causes of the “An Active Directory Domain Controller (AD DC) for the domain …” error message?

Earlier I was having issues connecting one of my workstations (client) to my domain, and I thought it was because the domain was not in my possession yet (reference: this question). But, due to the ...
0
votes
1answer
652 views

Can't resolve local IP using remote dns server

I'm trying to do something I thought would be pretty simple. Mapping local.mydomain.com to 192.168.0.1 using my registrar's DNS server.(namecheap.com) I've added an A Record for local with value of ...
0
votes
0answers
200 views

Odd DNS behavior on multiple Ubuntu 12.04 VMs. NSlookup and Dig resolves hostname but ping cannot

In attempting to set up a VoIP server, I came across some interesting behavior from Ubuntu. My VoIP account was assigned a unique hostname that I am to connect to, however, Ubuntu is unable to ...
-1
votes
2answers
265 views

Simple dig output?

In a script I want to be able to write an IP address to somewhere easily, so I thought using dig (or a similar command) with back-ticks. However the simplest output I've been able to come up to wrt ...
-2
votes
1answer
687 views

Nslookup - Querying my Internet Provider [closed]

I'm trying to nslookup all records of my internet provider, but it's returning "Result too large". I'm using the Windows nslookup.exe. example: nslookup.exe >server ns1.brtel.com.br >set ...
5
votes
2answers
2k views

Why can host and nslookup resolve a name but dig cannot?

Can anyone tell me why this is happening? I can resolve a hostname using host and/or nslookup but forward lookups do not work with dig; reverse lookups do: musashixxx@box:~$ host someserver ...
0
votes
3answers
538 views

Reverse Lookup in Linux - Trying Next Server on NXDomain

I have an application on a Linux box that uses reverse lookup to resolve hostnames. The problem is, I have two sets of DNS servers in my resolve.conf (4 servers total), with each set corresponding to ...
21
votes
2answers
43k views

DNS - NSLOOKUP what is the meaning of the non-authorative answer?

When I do a NS Lookup, for some domains I get the reply saying Non-authorative answer:. I want to know what it means? Got answer: HEADER: opcode = QUERY, id = 3, rcode = NXDOMAIN ...
3
votes
2answers
2k views

IP address used by nslookup and ping is different

I have a web server hosted in the network. It has a domain name registered. However, I also host a DNS server for the LAN. So, when someone wants to access the web server, it would check the DNS ...
1
vote
1answer
1k views

DNS resolve timeout on RHEL 6.3 behind firewall

I have a server running Red Hat 6.3 Enterprise inside a VMWare virtual machine. There's a Juniper SSG 5 firewall sitting between the server and the Internet. I'm trying to diagnose what it looks like ...
0
votes
2answers
1k views

Intermittent DNS failure

Currently, I am struggling with a problem causing one of our servers to lose its DNS access in irregular time intervals. The symptoms are that, for some minutes, any call to nslookup fails with error ...
1
vote
1answer
4k views

Ubuntu DNS Lookup Failure

Some one installed and configured ubuntu on a virtual machine hosted on a machine in our network. I've recently noticed that all DNS lookup's fail but i cant find a solution to this. I've tried a ...
2
votes
1answer
4k views

Why is nslookup reporting two IP addresses?

I made a DNS change a few hours ago and I just ran the following command with the following output: nslookup mydomain.com ns1.mynameserver.com Server: ns1.mynameserver.com Address: 111.111.111.111 ...
1
vote
2answers
401 views

Synchronized DNS-servers return different responses

I have two servers: alpha.mydomain.net - 209.110.172.195 beta.mydomain.net - 185.169.74.16 Both of these servers come with WHM software installed. With the help of WHM I configure DNS cluster on ...
-3
votes
1answer
160 views

switching hostname when I resolve IP address reversely via “nslookup” command

There's a network issue in my office so I ran Look@LAN application to check network condition of some windows PCs. All of sudden, I found out a resolution of IP address of some PCs are switching ...
2
votes
5answers
2k views

Ping hostname works but nslookup to hostname doesn't

I have a Windows 2008 standard server which can ping by hostname and give me the proper IP address back however if I try to do an nslookup on the hostname I receive: server: nmgdc1.nmg.local Address ...
0
votes
1answer
93 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 ...
6
votes
2answers
2k views

How is DNS lookup order determined?

For example: we have registered domain name domain.com and added name server records at the registrars server: ns1.domain.com. ns2.domain.com. ns3.domain.com. Than we look up for domain.com. We get ...