[Ilugc] [OT] Bsnl Dataone connection is slow now a days
- From: rajasuperman@xxxxxxxxx (Raja Subramanian)
- Date: Tue Jul 27 22:27:33 2010
2010/7/27 Balaji Narayanan (?????? ????????) <lists@xxxxxxxxxxx>
Beware of using Open DNS. Some of the edge caching systems relies on
routing you to a nearest server based on where the DNS query
originated from. And if you are using a Open DNS server, you might be
sent to a cache closer to the DNS server resulting in unwanted
latency.
Great point. But note that the problem is not specific to OpenDNS
alone. Any hosted DNS service has exactly the same problem.
Perhaps the best option is to run bind as a caching name server
for local users. IIRC, the default config of every distro is to run
bind as a pure cache only name server.
However, OpenDNS/GoogleDNS/etc have some neat technology
deployed through UDP Anycast. Good reading for any networking
enthusiast. And in any case, these services are far better than
the DNS infrastructure provided by Indian ISPs.
But since the OP has problems with Skype disconnects, his issue
is not with DNS at all. Skype super node IPs are 1) hard coded in
the binary, 2) updated on every connect, and 3) cached locally.
Skype works perfectly even when DNS is not configured in your box.
Perhaps OP should consider checking the physical DSL/telephone
cable or the issue could also be due to congestion in the BSNL network.
- Raja
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