[ale] Comcast DNS

[william at witt-family.net (William Witt)]

At least in Miami, Comcast's DNS server's are awful.  If you do decide
to use them, ensure the IPv6 is turned off or you'll only get valid
responses 50% of the time.  When I was with Comcast, I used OpenDNS.

Will

On Wed, 2009-05-27 at 16:30 -0400, Scott wrote:
> Since moving from Charter to Comcast I've noticed that connecting to 
> sites have drastically slowed down. My DNS config used to be:
> Primary DNS: 64.94.1.1
> Secondary DNS: 64.94.1.33
> Tertiary DNS: (I don't remember for Charter)
> DNS search path: nothing specified
> 
> Now my config is:
> 
> Primary DNS: 64.94.1.1
> Secondary DNS: 64.94.1.33
> Tertiary DNS: 68.87.68.162
> DNS search path: hsd1.ga.comcast.net
> 
> When I do a nslookup of DNS 1 & DNS 3 I get:
> [scott at ncc1701f ~]$ nslookup 64.94.1.1
> Server:        64.94.1.1
> Address:    64.94.1.1#53
> 
> Non-authoritative answer:
> 1.1.94.64.in-addr.arpa    name = ns1.acs.pnap.net.
> 
> Authoritative answers can be found from:
> 1.94.64.in-addr.arpa    nameserver = ns-c.pnap.net.
> 1.94.64.in-addr.arpa    nameserver = ns-d.pnap.net.
> 1.94.64.in-addr.arpa    nameserver = ns-a.pnap.net.
> 1.94.64.in-addr.arpa    nameserver = ns-b.pnap.net.
> ns-a.pnap.net    internet address = 64.94.123.4
> ns-b.pnap.net    internet address = 64.94.123.36
> ns-c.pnap.net    internet address = 64.95.61.4
> ns-d.pnap.net    internet address = 64.95.61.36
> 
> [scott at ncc1701f ~]$ nslookup 68.87.68.162
> Server:        64.94.1.1
> Address:    64.94.1.1#53
> 
> Non-authoritative answer:
> 162.68.87.68.in-addr.arpa    name = cns.s3woodstock.ga.atlanta.comcast.net.
> 
> Authoritative answers can be found from:
> 87.68.in-addr.arpa    nameserver = DNS103.comcast.net.
> 87.68.in-addr.arpa    nameserver = DNS101.comcast.net.
> 87.68.in-addr.arpa    nameserver = DNS102.comcast.net.
> 
> Any suggestions as to what I should use? And how would I manually set 
> it, as I'm using DHCP form my Linksys router that only has places for 
> DNS 1 & 2.
> 
> TIA
> Scott
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