Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
?
Solved

How to determine DNS TTL Remaining

Posted on 2014-01-02
2
Medium Priority
?
857 Views
Last Modified: 2014-01-02
I am wondering if there is a way to determine how long a cached DNS record has been on a DNS server and subsequently how long it will be before the record expires and the DNS server will do a look up to the domains DNS servers.

For example, if I do not have direct access to my ISPs DNS server is there away I can do a query against that server via nslookup for example, and determine how long it will be before that DNS server will dump www.dogpile.com from its cache and requery the authoritative DNS server for dogpile.com.  I am not looking simply for the TTL as I can get that.  What I want I am looking for is how many seconds to go before the TTL expires on the query/caching server.
0
Comment
Question by:BladesAway
2 Comments
 
LVL 9

Accepted Solution

by:
dipersp earned 2000 total points
ID: 39752794
Nslookup with -debug should do what you need.
0
 

Author Closing Comment

by:BladesAway
ID: 39752846
Perfect.

For others, the syntax is:

nslookup -debug - nameserver

;where name server is the IP or hostname of the DNS server.
0

Featured Post

Who's Defending Your Organization from Threats?

Protecting against advanced threats requires an IT dream team – a well-oiled machine of people and solutions working together to defend your organization. Download our resource kit today to learn more about the tools you need to build you IT Dream Team!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article is intended as an extension of a blog on Aging and Scavenging by the MS Enterprise Networking Team. In brief, Scavenging is used as follows: Each record in a zone which has been dynamically registered with an MS DNS Server will have…
BIND is the most widely used Name Server. A Name Server is the one that translates a site name to it's IP address. There is a new bug in BIND (https://kb.isc.org/article/AA-01272), affecting all versions of BIND 9 from BIND 9.1.0 (inclusive) thro…
Screencast - Getting to Know the Pipeline
Is your OST file inaccessible, Need to transfer OST file from one computer to another? Want to convert OST file to PST? If the answer to any of the above question is yes, then look no further. With the help of Stellar OST to PST Converter, you can e…
Suggested Courses
Course of the Month14 days, 18 hours left to enroll

577 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question