[ale] Comcast linux...

Dow Hurst dhurst at kennesaw.edu
Tue Jan 6 09:56:10 EST 2004


Once you get one of the nameservers, are you able to map out the Comcast 
DNS scheme with some "digging"?  I have found so far that Bellsouth, 
Earthlink, and Charter cable all seem to do well with a dhcp request via 
a standard Linux dhcp client or their specialized DSL router/modem dhcp 
requests.  If you just dhcp request the network do you get any info back 
at all?  If not then I guess you do have to get the MAC registered.  If 
you run KDE then Konqueror will now do a good job of spoofing IE to the 
server.  It has been the MS specific javascript that failed after that 
when using Konqueror.

One victory I just had was with DirectTV:  their programming page, where 
you look up the schedule based on drop down javascript based boxes 
containing the date and time you want to look at, wouldn't work right 
with Mozilla 1.5 and Java 1.4.2.  So I emailed customer service, 
explained the error and the page it was on and requested Mozilla 
support.  Sure enough within a couple of weeks the page was fixed and I 
could used the drop down boxes just fine.  Now there isn't a single part 
of their website that I couldn't use.  I am a happy customer!

I have an idea:  Why don't those who have Comcast cable do some digging 
on nameservers for Comcast and post their current DNS server IP and 
whatever info they can come up with.  We could produce a map of 
Comcast's DNS for those who need it.  I've thought about having Comcast 
as an alternate backup connection but haven't decided to afford it yet.  
I still have Earthlink DSL as the main connection at my home.
Dow

PS.  Below is output of dig from here at KSU.

[dhurst at knife dhurst]$ dig comcast.net

; <<>> DiG 9.2.1 <<>> comcast.net
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 24766
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 2, ADDITIONAL: 0

;; QUESTION SECTION:
;comcast.net.                   IN      A

;; ANSWER SECTION:
comcast.net.            763     IN      A       204.127.205.8
comcast.net.            763     IN      A       63.240.76.72

;; AUTHORITY SECTION:
comcast.net.            7063    IN      NS      dns02.jdc01.pa.comcast.net.
comcast.net.            7063    IN      NS      dns01.jdc01.pa.comcast.net.

;; Query time: 2 msec
;; SERVER: 130.218.100.5#53(130.218.100.5)
;; WHEN: Tue Jan  6 09:48:27 2004
;; MSG SIZE  rcvd: 110

[dhurst at knife dhurst]$ dig dns01.jdc01.pa.comcast.net

; <<>> DiG 9.2.1 <<>> dns01.jdc01.pa.comcast.net
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 64931
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 0

;; QUESTION SECTION:
;dns01.jdc01.pa.comcast.net.    IN      A

;; ANSWER SECTION:
dns01.jdc01.pa.comcast.net. 7200 IN     A       68.87.96.3

;; AUTHORITY SECTION:
jdc01.pa.comcast.net.   7200    IN      NS      dns01.jdc01.pa.comcast.net.
jdc01.pa.comcast.net.   7200    IN      NS      dns02.jdc01.pa.comcast.net.

;; Query time: 31 msec
;; SERVER: 130.218.100.5#53(130.218.100.5)
;; WHEN: Tue Jan  6 09:48:46 2004
;; MSG SIZE  rcvd: 94

[dhurst at knife dhurst]$ dig dns02.jdc01.pa.comcast.net

; <<>> DiG 9.2.1 <<>> dns02.jdc01.pa.comcast.net
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 59555
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 1

;; QUESTION SECTION:
;dns02.jdc01.pa.comcast.net.    IN      A

;; ANSWER SECTION:
dns02.jdc01.pa.comcast.net. 7200 IN     A       68.87.96.4

;; AUTHORITY SECTION:
jdc01.pa.comcast.net.   7200    IN      NS      dns01.jdc01.pa.comcast.net.
jdc01.pa.comcast.net.   7200    IN      NS      dns02.jdc01.pa.comcast.net.

;; ADDITIONAL SECTION:
dns01.jdc01.pa.comcast.net. 7191 IN     A       68.87.96.3

;; Query time: 32 msec
;; SERVER: 130.218.100.5#53(130.218.100.5)
;; WHEN: Tue Jan  6 09:48:55 2004
;; MSG SIZE  rcvd: 110

Bob Toxen wrote:

>I recently had to deal with those jerks.  If it's the same as the
>Norcross/Duluth area:
>
># Comcast
>nameserver 204.127.202.19
>nameserver 216.148.227.79
>
>You then need to browse their web site and, like the other guy said,
>supply your MAC address and the password to your primary email account
>to activate.  This is changed from a few years ago.  (I had to do it a
>month ago.)
>
>Bob
>
>On Mon, Jan 05, 2004 at 03:20:48PM -0800, Berlin Brown wrote:
>  
>
>>I almost have my comcast cable modem setup.  I think I just need a
>>primary dns, nameserver using ips only.  Does anybody have the dns for
>>atlanta from comcast, emory area.
>>    
>>
>
>  
>
>>I cant find it on the net.  And the people at comcast wont give it
>>to me.  Redhat is supposed to pick it up, but it didnt?
>>    
>>
>
>  
>
>>Funny thing, when the comcast tech came.  At first I never even thought
>>you needed a windows machine(havent installed a win machine in 2 years).
>>Anyway the guy went nuts over it.  I said fine, just leave the modem,
>>'We can't do that, once you get windows up, we will send another guy out.'
>>B.S.!, just leave the modem, Ill figure it out, then he left.
>>    
>>
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>Ale mailing list
>Ale at ale.org
>http://www.ale.org/mailman/listinfo/ale
>
>  
>

-- 
__________________________________________________________
Dow Hurst                  Office: 770-499-3428            *
Systems Support Specialist    Fax: 770-423-6744            *
1000 Chastain Rd. Bldg. 12                                 *
Chemistry Department SC428  Email:   dhurst at kennesaw.edu   *
Kennesaw State University         Dow.Hurst at mindspring.com *
Kennesaw, GA 30144                                         *
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