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domain name system

I would like to see the Time-to-live (TTL) value for a 'AAAA' and A record for domains. How do I see Time-to-live (TTL) for a DNS record under Unix or Linux operating systems using command line options?
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My router configured by ISP tech and it is set to get DNS server address automatically from upstream. Is there is a way to find out the IP address of the dns server used by my router which is located at 192.168.1.1? Is there Linux, Unix, Apple OS X, or MS-Windows command that I can use get the same information?
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How do I ping IPv6 enabled address using Windows XP or Vista or Windows ME/Server edition?
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How To Find Out What My DNS Servers Address Is

How do I find out my DNS server addresses under Linux, UNIX, Apple OS X, MS-Windows operating system? What is my dns server IP address under MS-Windows operating systems? Can you specify a list of public DNS server for personal use or game consoles?
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