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DNS servers

Hello,
Just looking to see what people are using for DNS servers these days on Telus in BC. I am currently using Google free DNS servers 8.8.8.8 and 8.8.4.4
This is straight Optic high speed internet, no tv.

I just use the default TELUS DNS servers. In the past, there were some performance issues, but it has been real solid for the past year.

75.153.176.1
75.153.176.9

Some people use OpenDNS as well, but it can throw off Content Delivery Networks like Akamai or Limelight that use DNS servers to redirect users to local caches.

I'm on Optik so I didn't want to change the DNS on the V1000...but I've got all the PCs set to OpenDNS manually.
Got conflicting advice on changing DNS with Optik TV.

Those DNS are not the best ones for me. They are the default dns servers on my

I ran a script to query the DNS and collect response time on those and it was quite crappy. I'll post my method below but the average/max response per DNS where :
75.153.176.1 Average : 136.075 msec / Max: 231 msec
75.153.176.9 Average : 140.145 msec / Max: 244 msec

Then I tried with google, not much better :
8.8.8.8 Average : 136.075 msec / Max: 231 msec
8.8.4.4 Average : 135.175 msec / Max: 254 msec

So I tried with other DNS server I could find for Telus ( »Telus FAQ »What are the DNS addresses used by Telus? )
209.115.152.130 Average : 63.935 msec / Max: 152 msec
209.115.152.150 Average : 63.255 msec / Max: 138 msec
216.123.224.131 Average : 60.54 msec / Max: 119 msec
209.202.110.120 Average : 103.735 msec / Max: 180 msec
209.202.110.121 Average : 102.725 msec / Max: 192 msec

I know that this is somehow empiric and maybe linked to my type of connection / place (dry DSL in North Van).

For the records, here is the (quick and dirty) bash loop I used :

$ for i in {1..200};do dig $i.test.google.com @75.153.176.9;done | awk '/Query time/ {SUM+=$4;if (($4) > max) max = ($4)} END{print "Average : "SUM/200" msec / Max: " max " msec"}'


I did a flush of local cache ($ dscacheutil -flushcache ) between all tests.

Note that 207.194.28.230 and 207.102.93.157 did not respond at all.

That test works great for recursion, but the vast majority of queries are served out of cache. So you'll also want to see how quickly the server responds for a cached query as well and factor that in.

And you might want to check that list of other DNS servers.. some of them don't even do recursion.