Any possible problem using other ISP's DNS?

G

Gaurish

ex-Mod
I have Bsnl broadband connection, Since past few days i am using Airtel's DNS.

i am getting consistent latencies.

Ping is many times better than OpenDNs

Code: 
gaurish  ~  $   ping -c 4  218.248.240.208

PING 202.56.250.6 (202.56.250.6) 56(84) bytes of data.

64 bytes from 202.56.250.6: icmp_seq=1 ttl=250 time=95.7 ms

64 bytes from 202.56.250.6: icmp_seq=2 ttl=250 time=97.2 ms

64 bytes from 202.56.250.6: icmp_seq=3 ttl=250 time=95.1 ms

64 bytes from 202.56.250.6: icmp_seq=4 ttl=250 time=97.1 ms

--- 218.248.240.208 ping statistics ---

4 packets transmitted, 4 received, 0% packet loss, time 3011ms

rtt min/avg/max/mdev = 51.037/94.225/120.922/27.278 ms

Code: 
gaurish  ~  $   ping -c 4  208.67.220.220

PING 208.67.220.220 (208.67.220.220) 56(84) bytes of data.

64 bytes from 208.67.220.220: icmp_seq=1 ttl=48 time=316 ms

64 bytes from 208.67.220.220: icmp_seq=2 ttl=48 time=312 ms

64 bytes from 208.67.220.220: icmp_seq=3 ttl=48 time=403 ms

64 bytes from 208.67.220.220: icmp_seq=4 ttl=48 time=373 ms

--- 208.67.220.220 ping statistics ---

4 packets transmitted, 4 received, 0% packet loss, time 3007ms

rtt min/avg/max/mdev = 312.494/351.585/403.429/38.533 ms

are they any issues if i use other isp's DNS?
 
Gaurish said:
I have Bsnl broadband connection, Since past few days i am using Airtel's DNS.
i am getting consistent latencies.
Ping is many times better than OpenDNs
Click to expand...

What do you mean by that? I can't really decipher how ping (to many hosts around) is going to improve by using any dns address, the only time thats going to affect is dns resolution, which once done, is not done for another hour depending upon TTL.

So can you explain further?

~LT
 
^ That's true but he is showing latency of dns server's . less latency= faster name resolutions ( ideally ) . Difference will be very unnoticable .
 
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