name resolution

Linux / Unix: Dig Command Find Out TTL (Time to Live) Value For DNS Records

by on May 5, 2013 · 2 comments

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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DNS Name Resolution

by on June 12, 2008 · 4 comments

Can you explain DNS name resolution concept? Why I need to set DNS resolution for my Windows or Linux server? How do I setup DNS name resolution under Linux / UNIX server system?

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ORA-12154: TNS:could not resolve the connect identifier specified Error and Solution

by on May 1, 2008 · 10 comments

Q. My Oracle XE installation was working fine, but today I’m getting an error – which read as follows under Ubuntu Linux : ORA-12154: TNS:could not resolve the connect identifier specified How do I fix this problem without reinstalling Oracle?

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Free DNS Server

by on March 13, 2008 · 43 comments

My ISP DNS servers are overloaded, can you give me free dns server IP address for fast name resolution?

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Mail delivery: DNS: Service unavailable error

by on March 4, 2008 · 0 comments

Q. My mail delivery fails with DNS: Service unavailable error. How do I fix this error under Linux / UNIX operating systems?

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DHCP Client Error: mv cannot move /etc/resolv.conf.dhclient-new to /etc/resolv.conf: Operation not permitted

by on January 11, 2008 · 0 comments

Q. I’m getting following error on my Debian Linux system: mv cannot move /etc/resolv.conf.dhclient-new to /etc/resolv.conf: Operation not permitted How do I fix this problem?

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