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Old 06-06-2004, 00:21   #7
Paul
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Join Date: Oct 2003
Location: Nottingham
Age: 63
Services: IDNet FTTP (1000M), Sky Q TV, Sky Mobile, Flextel SIP
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Re: When are DNS Server Updated?

Quote:
Originally Posted by chickendippers
Ah cool. From what other people have told me elsewhere I assumed that was how it worked (I guess they were over simplifing/just plain wrong) is there anyway to find out when the dns records expire?
Yes, nslookup will tell you if you run it in "debug" mode.

For example - if I try it for CF I get this ;

Quote:
QUESTIONS:
www.cableforum.co.uk, type = A, class = IN
ANSWERS:
-> www.cableforum.co.uk
canonical name = cableforum.co.uk
ttl = 359 (5 mins 59 secs) -> cableforum.co.uk
internet address = 69.72.137.98
ttl = 359 (5 mins 59 secs)
AUTHORITY RECORDS:
-> cableforum.co.uk
nameserver = ns1.i-webserver.co.uk
ttl = 41950 (11 hours 39 mins 10 secs)
-> cableforum.co.uk
nameserver = ns2.i-webserver.co.uk
ttl = 41950 (11 hours 39 mins 10 secs)
ADDITIONAL RECORDS:
-> ns1.i-webserver.co.uk
internet address = 69.72.137.100
ttl = 67553 (18 hours 45 mins 53 secs)
-> ns2.i-webserver.co.uk
internet address = 69.93.128.72
ttl = 67553 (18 hours 45 mins 53 secs)
You can see (highlighted) that CF's dns entry will expire on just under 6 minutes time in the dns server I use.
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