dig is a command-line client to make queries against DNS servers, the Internet name servers.

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Backup DNS servers for a domain name - optimal configuration and troublehooting

Let's say we have these name servers for 1 domain. ns.1.com ns.2.com ns.3.com ns.4.com backup-ns.1.com backup-ns.2.com How can I know which NS responded to this specific query, for example using ...
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2answers
36 views

How to return only empty or “problematic” DNS records for bulk queries

When doing a bulk input of records, I want to verify that I put each in its correct location by doing a bulk query with dig. Dig will spit out all positive results with: dig +noall +answer or dig ...
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1answer
31 views

How to use dig to send DNS queries to servers of interest directly? (not through my local DNS resolver) [closed]

How can I use dig to send a dns query to servers directly? (not through local DNS resolver).
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1answer
38 views

Performing DNS queries starting with one of the root servers using dig command [closed]

I am having trouble understanding the question for my network assignment. The question states: Discover the sequence of DNS servers your local DNS server with empty cache goes through when it ...
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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 ...
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20 views

Virtual Machine Dig Connection timed no servers could be reached

I have been following this tutorial on how to set up a DNS and DCHP server but am running into some errors which my client. I am trying to set this up on a virtual machine. I am trying to test the ...
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1answer
78 views

DIG returns different result from different servers [closed]

Yesterday, one of my domain names expired, so one of my websites was down. I'm well aware of dns caching, but I think there is something I miss. My website was not down everywhere (thanks to dns ...
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2answers
66 views

How to find what Authoritative Name Server provided the answer using dig?

I need to check the differences in records on master and slave when making changes. Is there some option for dig to show which Authoritative Name Server provided the answer? for example dig ...
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1answer
145 views

Google DNS returns SERVFAIL for domain [duplicate]

Hope someone can help I know the basics of DNS setup, am having an issue with my hosting company. Have several domains hosted, DNS settings are basically setup by the hosting company using their ...
2
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1answer
60 views

What are all the flags in a dig response?

dig responses return flags in the comments section: $ dig example.com +noall +comments ; <<>> DiG 9.8.3-P1 <<>> example.com +noall +comments ;; global options: +cmd ;; Got ...
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1answer
86 views

DNS-SD only discovering services correctly after dig -t any

I have several DNS servers configured for DNS-SD. I am able to register services without issue, however when I try to browse I get errors. I have been testing using dig: Browsing a local or remote ...
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130 views

Why does dig +trace seem to ignore the DNS glue records?

Here are my questions: Why does dig +trace ignore the Glue Records? Is this behavior specific to dig or dig +trace, or does a recursive name server also "manually verify" glue records it receives? ...
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2answers
70 views

Reverse IP Lookups [closed]

When I resolve google.com I get the following ip addresses Name: google.com Addresses: 2607:f8b0:4006:80b::1006 173.194.123.6 173.194.123.0 173.194.123.8 e.t.c However ...
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1answer
125 views

Host command returns two different IP addresses when run sequentially

Here's an interesting problem: ~ $ host gitlab.myorg.com gitlab.myorg.com is an alias for aln7git01.myorg.com. aln7git01.myorg.com has address 172.30.9.197 ~ $ host gitlab.myorg.com gitlab.myorg.com ...
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3answers
459 views

What is the best way to get PRECISE domain name from ip address logged in iptables log

In iptables I am logging certain public IP addresses... say of websites visited from different workstations, depending on destination port number... All this is not really relevant to the question but ...
0
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1answer
219 views

How would get an email server reputation via cli or script?

I am trying to monitor email server reputation via cli or script i.e. https://www.senderbase.org/ I found a way supposedly to do it via dig, but the output appears to be very incorrect. It indicates ...
0
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1answer
261 views

Using 'Dig' to zone transfer but gets a 'timed out connection'

i am corrently trying to test a zone transfer via dig (9.8.4) with the following command: dig axfr @ns.server.com domainname.com and i get the following error:(notice its not a declined zone ...
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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 ...
2
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2answers
907 views

Domain Name Forwarding not working with github pages

I had my blog on github pages with a custom domain name blog.tamizhvendan.in and today I've moved it to a new domain name www.p3programmer.com by updating the CNAME record with www.p3programmer.com. ...
0
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1answer
115 views

Where does dig additional section nameserver information come from? [duplicate]

I have a client whose website has intermittent issues, which I believe are due to DNS lookup. When this happens and they do a ping, the host cannot be resolved. Therefore, I ran: dig ...
0
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1answer
47 views

dns lookup at different dns servers

when I perform a dig lookup to look for dns record for a domain name, server A gives a non empty dns record, but server B gives nothing. why? is there a more consistent approach? server A # dig ...
2
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1answer
589 views

Dig Command on specific server gives different results than querying without specifying a NS

I am currently experimenting with the dig command because I am having issues with my newly registered domain. When I execute dig @dns.dns1.de overminded.de on one of my Debian servers, I am getting ...
2
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1answer
223 views

Cannot find solution to “One or more of your nameservers did not return any of your NS records.” on intoDNS site

I have set up DNS on my Linux Centos server and when I test on this site I get the following errors: WARNING: One or more of your nameservers did not return any of your NS records. ERROR: ...
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1answer
198 views

dig command on linux returning differing results

Running the command dig against a particular domain, returns the previous name server details. For example; domain.com. 41068 IN NS ns1.nameserver1.com. Now if i run the command dig ...
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1answer
493 views

TTL and Google DNS

I've found a similar post about this, however my user can't comment. I wonder why doing dig @8.8.8.8 domain.com prints out different "countdowns" when running it several times in few seconds, as if ...
3
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1answer
181 views

Why does TTL sometimes re-increment between DNS queries?

I dig xkcd.com, and I get something like this back: ; <<>> DiG 9.9.5-3ubuntu0.1-Ubuntu <<>> xkcd.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: ...
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2answers
327 views

TTL in ping vs dig

When I ran ping google.com, I get a ttl value of 55: 64 bytes from 173.194.127.103: icmp_seq=68 ttl=55 time=16.4 ms When I ran dig google.com @ns1.google.com., it get a TTL value of 300. ...
3
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2answers
2k views

bind not able to query some servers / domains

We have been experiencing problems with our company's DNS server when trying to resolve only certain domains, we are running BIND 9.8.2rc1-RedHat-9.8.2-0.30.rc1.el6 on a CentOS 6.5 server. We are ...
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1answer
23k views

Yum PYCURL ERROR 6 - “Couldn't resolve host 'mirrorlist.centos.org'” [closed]

I am attempting to redo my server (CentOS release 6.6 [Final] x86_64) and I am now getting the following output on yum [root@server ~]# yum update Loaded plugins: fastestmirror, priorities, security ...
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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 ...
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1answer
128 views

Why is host so much slower than dig on some queries?

When querying a particular address, dig as run against the resolvers listed in /etc/resolv.conf will return NXDOMAIN nice and quickly where host will take a while. $ dig @<resolver> ...
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1answer
421 views

DNS queries fail from local machine running dnsmasq

I have a "sandbox" web server setup for my developers to work on. Each one has their own IP, with all the "production" hostnames configured, and a DNSmasq configuration to answer for those production ...
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1answer
311 views

“dig +trace fqdn” and “dig fqdn” do not give the same result on a LAN with windows DNS server, why?

in my company LAN I have a Ubuntu 14.04 server running in Virtualbox (as guest) on a Windows 7 (the host) with network interface bridged (so the Ubuntu server belongs to the LAN, with its ip: ...
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1answer
460 views

BIND 9.8.2 not giving A record for “dig domain.xxx ANY”

I got problem with my BIND 9.8.2 setup. After configuring master zone which works fine I've noticed that I cannot get a list of all A records using the dig utility with the ANY option. Here are some ...
5
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1answer
558 views

Why does dig +trace sometimes fail against Windows Server DNS?

My team has a server pointing at the DNS supplied by Active Directory to ensure that it is able to reach any hosts managed by the domain. Unfortunately, my team also needs to run dig +trace frequently ...
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1answer
334 views

Why is the DNS on my Windows Server 2012 not authoritative according to dig?

This is me trying to understand something rather than a real problem. I have a new Windows Server 2012 Essentials. That server provides, DNS, DHCP etc. Lets say my Windows domain is my-windows-domain ...
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4answers
2k views

Why doesn't `dig` show records?

Every time I use dig I get a vague feeling that I'm not really sure whether it's giving me correct data. Now I've used it like this: # dig socialimpactportfolio.com ; <<>> DiG ...
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Dig returns Refused Status on norecurse?

I've looked up two questions here at serverfault, but my question's a little different in specificity - when running the dig command with the +norecurs option (I'm trying to experiment with cache here ...
4
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1answer
8k views

Using dig axfr to perform a zone transfer from a Windows Server 2012 DNS server

I'm working on setting up host auto-discovery for Nagios using DNS records. When I try to use dig axfr to do a zone transfer (dig axfr local.domain.com), however, I get the following output: ...
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2answers
186 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 ...
0
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1answer
213 views

Check all domains served by a DNS server [duplicate]

Is there any way to query a dns server to find out all the domains it is the authoritative server? [all domains it has configured?] (I can use dig or any other tool)
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1answer
88 views

DNS resolution failure when querying through server IP

I have a DNS zone file with the following config : $TTL 86400 $ORIGIN example.com. @ IN SOA ns1.example.com. dns.example.com. ( 2014022604 ; Serial ...
0
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1answer
55 views

Is it needed to use local DNS cacher in EC2 / VPC?

Seems like AWS internal DNS is already a very low latency one, e.g. On ec2 dig google.com | grep "Query time" ;; Query time: 0 msec So do we really need to use another DNS cacher?
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1answer
175 views

Why does dig succeed if I add an SOA query and fail when I do not?

When I do this dig I get no answer... red@localhost:~$ dig +noall +answer name-one.name-two.com @mydns-server.name-one.com ... but when add name-two.com soa I get an answer for ...
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1answer
173 views

digging an IP gives me an unregistered domain name, why? [closed]

I get spam all the time (what a surprise!) and once in a while I check the IP address to see where it comes from (i.e. .cn, .cz, .pl, etc.) Today I was surprised as I found the output of dig to be: ...
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1answer
2k 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
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2answers
296 views

linux: shorter 'host' command output

I'm using dns to manage my virtual hosts. In order to do so I query my nameserver with the host command for for certain values is need. For example: > host -t txt mycl1.vz mycl1.vz.myserver.de ...
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1answer
512 views

PowerDNS does not resolve TXT records

My PowerDNS DNS server 3.3 does not resolve TXT records. Database looks like this: PowerDNS database When I try to dig my server for TXT entry they are not being shown: [root@nowosci powerdns]# ...
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1answer
388 views

Cached response times from Google Public DNS slow

I noticed very strange but consistent performance behavior from Google Public DNS 8.8.8.8. Even-though a DNS record was cached, the response time was in the range of 20-30ms, which seems high. When I ...
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2answers
997 views

How to determine which DNS server has the authority to set rDNS (PTR records)?

or to re-phrase... How to determine to whom authority has been delegated to set rDNS? Background In a multi-tier environment, where a block of IP's is assigned, then further split and assigned ...