Tagged Questions

dig is a command-line client that allows you to make queries against DNS servers, which are servers that provide the Internet name service. While querying DNS servers is part of most Internet based applications (like web browsers, chat clients, email tools and so forth), those queries are done by ...

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2answers
32 views

Combining dig +short command

This command will show the output of MX record: dig @ns1.myname.com myname.com +short MX and this will output A record: dig @ns1.myname.com myname.com +short A My question is how to output both ...
0
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3answers
33 views

BIND result validity

I setup a local name server (BIND on OS-X) and was pleased that 'dig' response times were very short (2nd query onwards). However, if I wait a short period (5s) the response time goes up again - the ...
2
votes
2answers
89 views

dig @my-server-ip mydomain.com works from inside, not from outside?

My server has 2 ips: x.x.x.73 and x.x.x.248. I can access my site via these ips, using Web browser. {Now, from a CentOS machine (not my server), using terminal} If I: dig @x.x.x.73 mydomain.com ...
1
vote
2answers
193 views

resolv.conf options not being honored

Was hoping to implement the "options rotate" directive within resolv.conf to have DNS lookups rotate through the nameservers listed in that file. As I understand it that is the point of this ...
1
vote
1answer
46 views

OpenSource NetworkTools Application

Are there any opensource web-application tools like http://network-tools.com/ ? I want to perform DIG, traceroute, ping, telnet, whois etc.
2
votes
1answer
52 views

host dns lookup curiosity

Can anyone help me understand this :-- %)-- host brahma.mksh.net Host brahma.mksh.net not found: 3(NXDOMAIN) now when I run dig with trace.. I get the A record for brahma.mksh.net that I've ...
0
votes
3answers
116 views

DIG connection times out DNS [closed]

I'm at home (COMCAST is the ISP). I can run nslookup and resolve IPs fine. When I run dig I receive "connection timed out: no servers could be reached" I'm going to fireup a network trace but ...
0
votes
2answers
173 views

Can't seem to resolve domain, but can dig it

I've an interesting bug in my master name server. I'm running Fedora Linux, with bind 9.3.4. The server is planned to be replaced, as it's quite old, but I have to make it work in the meantime. The ...
1
vote
1answer
81 views

dig behavior on RHEL6

dig on RHEL6 has a different behavior than in RHEL5, related to the @server syntax: root@rhel6# dig @some.dnsserver.com any some.example.com dig: couldn't get address for 'some.dnsserver.com': not ...
1
vote
2answers
184 views

dig: “Transfer failed.”

INPUT: dig +multiline google.com axfr OUTPUT: ; <<>> DiG 9.7.3-RedHat-9.7.3-1.fc14 <<>> +multiline google.com axfr ;; global options: +cmd ; Transfer failed. What am I ...
2
votes
3answers
125 views

Forcing the dig tool to return us answers from the root servers

When doing a dig over some site (i.e. www.nasa.gov) from different online dig tool sites(in this case, http://networking.ringofsaturn.com/Tools/dig.php and http://www.kloth.net/services/dig.php), I've ...
1
vote
2answers
235 views

Why is my domain failing on some DNS servers?

I'm having some problems with my domains on some DNS servers. For instance, opencraft.org gives a SERVFAIL message on a number of domain servers around the world. It resolves fine from Google's DNS: ...
1
vote
1answer
83 views

Getting answer from nslookup but not from dig

So if I use dig to do a reverse lookup I get: dig 71.74.56.122 ; <<>> DiG 9.6.0-APPLE-P2 <<>> 71.74.56.122 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- ...
1
vote
3answers
669 views

DNS Subdomain delegation issue

(Updated the post with more detailed example) I have my domain: example.com setup at DNS provider 1. Provider 1 has nameservers: ns1.dns1.com ns2.dns1.com I want to delegate authority for ...
0
votes
3answers
386 views

A working domain without NS record. Possible?

Is it possible to have a working A record (a working website) without having a NS record? mylinux:~# dig example.com NS ; <<>> DiG 9.3.4-P1.2 <<>> example.com NS ;; global ...
1
vote
2answers
215 views

DIG domain NS empty when no other records exist?

I asked our domain registrar to configure the name servers for a new domain. They said it was done so I checked: dig example.com NS Using Google's servers, this is what I get: dig example.com NS ...
1
vote
4answers
136 views

Discover server responsible for serving a PTR for a specific IP?

Just as the title reads: How do I discover what nameserver is the authoritative nameserver for PTR records for a specific IP?
0
votes
2answers
623 views

SERVFAIL on ANY query

We have a CNAME entry that points to an Amazon Elastic Load Balancer instance. For some reason, my mobile app can resolve this entry on wifi, but not 3G -- I imagine it's talking to a different name ...
4
votes
1answer
3k views

What would be causing a “recursion requested but not available” error using dbndns?

The tinydns and dnscache services are running and I have 127.0.0.1 in my resolv.conf: root@ubuntu:~# cat /etc/resolv.conf nameserver 127.0.0.1 domain localdomain search localdomain root@ubuntu:~# ...
0
votes
2answers
127 views

What does “Warning: query response not set” mean in dig output?

As the title suggests what does "Warning: query response not set" mean. I see the following in the dighost.c (line 2888 and 2889) source but still am uncertain with what in my DNS servers response ...
0
votes
2answers
524 views

BIND9 recursion on slave servers for a delegated zone - not working

I've been reviewing BIND/DNS documenatation and I've been unable to find a clear answer. tl;dr - querying a secondary nameserver for a delegated zone A record does not work with recusion enabled. And, ...
7
votes
2answers
6k views

How can I see Time-to-live (TTL) for a DNS record?

I would like to see the Time-to-live (TTL) value for a CNAME record. I have access to dig (on Apple Leopard), which gives me an answer like this: % dig host.example.gov <*SNIP*> ;; ANSWER ...
1
vote
3answers
610 views

able to dig a hostname but doesn't resolve via ssh or ping

I am using Snow Leopard and cannot ping or ssh into a host but am able to dig: dig some.value.host.com When the ip address comes back in the answer section, then I am able to ssh via ip address ( ...
2
votes
1answer
765 views

Named on AIX (5.3) - DIG won't find hosts without FQDN?

Ok I'm a newb to AIX and Named, so hopfully I'm just missing something easy. :) The goal is to just have smooth DNS lookups in this goofy Windows workgroup/AIX DNS setup (it will change eventually, ...
0
votes
2answers
489 views

Dig vs Whois on Nameserver Update and Reference to Unknown FQDN?

After running a dig on an old domain name moved from an old server to a new one, completely different IP and provider, I ran a dig and found that the listed nameserver does not match the one in the ...
2
votes
1answer
64 views

How do I find the all domain names where name-server is authoritative?

is possibles query a name server and have the list of domains for which he is authoritative?
0
votes
1answer
1k views

Querying and verifying dnssec

I hear http://www.isoc.org/ has Domain Name System Security Extensions on its DNS records. How do I see and verify the DNS using the tool dig?
2
votes
3answers
202 views

Problem with Domain delegation

Okey I have the subdomain news.247dist.com, if i dig any this domain i get: ; <<>> DiG 9.4.3-P3 <<>> news.247dist.com any ;; global options: printcmd ;; Got answer: ;; ...
0
votes
4answers
181 views

Using dig (or similar), how to lookup the IP of a nameserver?

If I have a nameserver with name ns1.mydomain.com, and I want to query the IP for this name, but don't want to query the authoritative name servers for mydomain.com. Can this be done with dig, or ...
5
votes
5answers
6k views

List all DNS records in a domain using dig?

My company runs an internal DNS for "mycompany.com" There is a machine on the network that I need to find, but I've forgotten it's name. If I could see a list, it would probably jog my memory. ...
0
votes
2answers
792 views

DYNDNS.org Custom DNS returning odd results with Windows' NSLOOKUP

I wrote some time back about running my own DNS server temporarily in order to help facilitate the move of a domain name between two registrars with no down-time. I have since purchased the CustomDNS ...
1
vote
3answers
630 views

How to avoid DNS spoofing for DNS lookup

I am trying to find a way to obtain the real ip addresse(s) for a domain name. I'm working on a router doing traffic shaping with the use of iptables and tc. I then need to setup iptables rules for ...
2
votes
2answers
1k views

Authoritative DNS will not respond to pings or digs on domain

I am making an Authoritative DNS for a new site. The site responds nicely to all pings and most digs on its IP address, however rejects anything to its domain name. I would presume this is due to a ...
1
vote
2answers
47 views

Network Scan, Filtering for Top Level Domain

Greetings, I have a list of 2 /24s worth of IP addresses in seperate text files. What I am interested in doing is finding a way to resolve the hosts of these IP addresses and filter out to display ...
2
votes
2answers
2k views

SOA and Primary NS record (DNS)

The brunt of the question is this -- What is the relationship between the primary nameserver specified in the SOA record and the nameservers specified in the NS records. How are these things linked? ...
1
vote
3answers
1k views

Determine if DNS server is master or slave with DiG

Is there a way to use DiG or nslookup to determine if a server is set to Master or Slave? And if a server is slave, return the Master's IP address?