Re: nscd and DNS cache

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On 05/18/2012 02:44 AM, Ed Greshko wrote:
On 05/18/2012 05:40 PM, Ed Greshko wrote:
I can't see how your router or ISP could add to the "real" time.  I suppose you don't
have another system to check it....
Could you try the non-builtin time command?

/usr/bin/time dig @8.8.8.8 www.ny.com

Apparently, the internal shell time command is not reliable.

$ /usr/bin/time dig @8.8.8.8 www.ny.com

; <<>> DiG 9.8.2-RedHat-9.8.2-1.fc16 <<>> @8.8.8.8 www.ny.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 30022
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;www.ny.com.            IN    A

;; ANSWER SECTION:
www.ny.com.        1353    IN    CNAME    web1.ny.com.
web1.ny.com.        1353    IN    A    184.106.212.108

;; Query time: 67 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Fri May 18 02:51:01 2012
;; MSG SIZE  rcvd: 63

0.00user 0.00system 0:00.08elapsed 12%CPU (0avgtext+0avgdata 2628maxresident)k
0inputs+0outputs (0major+743minor)pagefaults 0swaps

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