Technology and Beyond (TaB)

From HKBN network in HK:

[root@ddnsUpdater0e0 dns_updater]# ./update_dns.sh
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 14 100 14 0 0 41 0 --:--:-- --:--:-- --:--:-- 81
; Communication with 115.231.209.243#53 failed: timed out
could not talk to specified name server
[Mon Sep 14 14:12:07 HKT 2015] Adding failed

The dns_file:

[root@ddnsUpdater0e0 dns_updater]# cat dns_file
server 115.231.209.243
update add wretar.dthink.net 600 A 61.92.242.11
send

I updated it manually and it worked for me. May network problem?

(09-14-2015 10:24 PM)amoners Wrote: [ -> ]I updated it manually and it worked for me. May network problem?

Code:

[amoners@berners-lee dns]$ nsupdate -k ddns.key
> server 115.231.209.243
> update add wretar.dthink.net 600 A 61.92.242.11
> send
> quit
[amoners@berners-lee dns]$ ping wretar.dthink.net
PING wretar.dthink.net (61.92.242.11) 56(84) bytes of data.
64 bytes from 061092242011.ctinets.com (61.92.242.11): icmp_seq=1 ttl=52 time=34.8 ms
64 bytes from 061092242011.ctinets.com (61.92.242.11): icmp_seq=2 ttl=52 time=38.2 ms
64 bytes from 061092242011.ctinets.com (61.92.242.11): icmp_seq=3 ttl=52 time=36.3 ms
64 bytes from 061092242011.ctinets.com (61.92.242.11): icmp_seq=4 ttl=52 time=38.0 ms

Figured out the problem. The VM's time is 8 hours behind. Sync the time by ntpdate. It works now. Thanks.

Moved to 'Completed work'.