Reference: http://www.zytrax.com/books/dns/ch15/#answer and http://www.zytrax.com/books/dns/ch8/a.html The first field is the NAME: The domain name being returned The second field (108 in your example) is the TTL in seconds. IN is the CLASS. Here, IN stands for Internet. A is the TYPE. Here, A stands for mapping a domain name to an IPv4 address. The last field … Read more
The Authority section indicates the server(s) that are the ultimate authority for answering DNS queries about that domain. The reason for this section is that you can query any* DNS server(s) to answer a query for you. That server may choose though to answer the query from a cache. However, if you want to ensure … Read more
It may be that this has been added to dig since the question was asked, but for completeness this can be accomplished through the following query: dig hostname A hostname AAAA +short Source: http://linux.die.net/man/1/dig — under the ‘Multiple Queries’ section
I believe that I found the correct answer through this dig How To. I was able to look up the SPF records on a specific DNS, by using the following query: dig @ns1.nameserver1.example domain.example txt
You can get a full list of entries in a zone with a zone transfer; you’d need to allow this for authorized systems in your DNS server. Once that’s done, you can run the transfer and grep the result: dig axfr localdomain.com | grep -i miller
TL;DR The lack of NXDOMAIN responses for Cloudflare hosted domains is a consequence of their specific DNSSEC implementation (using so called “black lies”) and not a design of the DNSSEC protocol itself; hence observations will be different with other providers doing DNSSEC. Initial questions How are NXDOMAIN responses still possible? Why wouldn’t they be possible? … Read more
The timeout value is per try so setting a +time=5 would result in a 15 seconds delay as the default for +tries is 3. If you set +tries=1 then your command will timeout in 5 seconds e.g. time dig +time=5 @hii.com hello.me ; <<>> DiG 9.3.6-P1-RedHat-9.3.6-16.P1.el5_7.1 <<>> +time=5 @hii.com hello.me ; (1 server found) ;; … Read more
dig is a troubleshooting tool, so it sends DNS queries and receives DNS answers and as Andreas said the answer is both CNAME and A records, as designed. Your wish is to give “Just the IP, ma’am.”, so that is not a DNS troubleshooting, it is “just” the resolution, for which dig is too much. … Read more
This appears to be a bug in Lion’s firewall. Is it enabled on your system? In this MacRumors thread (DNS problems after updating to Mountain Lion (10.8)), a possible workaround is discussed: Try reducing MTU size. System Preferences > Network > WiFi > Advanced > Hardware > Manually > MTU: Custom > 1300 Worked for … Read more
host, dig, and nslookup all share most of the same functionality. In the case you are asking about (asking a particular DNS question to a particular nameserver), dig and host (and indeed nslookup) behave exactly the same. For DNS troubleshooting, dig is preferred because its output format is more “raw”: in its output it directly … Read more