MacGroup: cable troubles
On Apr 30, 2006, at 10:33 PM, Bill Rising wrote: Ok --- I read through the hint, and read the rather heated discussion (since now everything is working quite well, suddenly). One of the discussants said that most routers will cache DNS info for later use --- if this were the case, then there would be no need to have the local caching DNS server (according to the poster). I ran his test to see where my laptop gets its info about apple.com from inside terminal: host -v www.apple.com and found that the DNS info actually did come from my router. This now confuses me, since I was having trouble getting to apple.com when the apparent DNS problems were happening. I should have read the hint more carefully. It isn't setting up a DNS as the hint says, but merely a DNS cache. My local cached DNS actually goes to the root servers to get the addresses just like the big boys do. It bypasses the InsightBB (actually ATT) DNS entirely. The way most routers work is that they get the address of the ISP's preferred DNS when they do their DHCP negotiation with the ISP. Then, when you use DHCP to connect locally, they advertise themselves to you as the DNS, but all they really do is pass the request off to the ISP's DNS. The advantage of this method is that the router can cache requests for a short to return them very quickly, if they are asked for again. My setup on the Linux machine doesn't use the ISP's DNS at all. It goes directly to the root servers to get the addresses and then caches like the router. You can see the advantage to this in what follows, when I ask my machine to look up W's address twice. It's 200 times faster on the second round. (Look at the query times. My Linux machine is 192.168.0.5.) Here's the first run. [Lee-G4-2:/etc] leelarso% dig www.whitehouse.gov ; DiG 9.2.2 www.whitehouse.gov ;; global options: printcmd ;; Got answer: ;; -HEADER- opcode: QUERY, status: NOERROR, id: 26264 ;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 9, ADDITIONAL: 0 ;; QUESTION SECTION: ;www.whitehouse.gov.IN A ;; ANSWER SECTION: www.whitehouse.gov. 7200IN CNAME www.whitehouse.gov.edgesuite.net. www.whitehouse.gov.edgesuite.net. 300 IN CNAME a1289.g.akamai.net. a1289.g.akamai.net. 20 IN A 63.211.236.232 a1289.g.akamai.net. 20 IN A 63.211.236.238 ;; AUTHORITY SECTION: g.akamai.net. 823 IN NS n4g.akamai.net. g.akamai.net. 823 IN NS n5g.akamai.net. g.akamai.net. 823 IN NS n6g.akamai.net. g.akamai.net. 823 IN NS n7g.akamai.net. g.akamai.net. 823 IN NS n8g.akamai.net. g.akamai.net. 823 IN NS n0g.akamai.net. g.akamai.net. 823 IN NS n1g.akamai.net. g.akamai.net. 823 IN NS n2g.akamai.net. g.akamai.net. 823 IN NS n3g.akamai.net. ;; Query time: 859 msec ;; SERVER: 192.168.0.5#53(192.168.0.5) ;; WHEN: Sun Apr 30 22:57:17 2006 ;; MSG SIZE rcvd: 305 Here's the second run. [Lee-G4-2:/etc] leelarso% dig www.whitehouse.gov ; DiG 9.2.2 www.whitehouse.gov ;; global options: printcmd ;; Got answer: ;; -HEADER- opcode: QUERY, status: NOERROR, id: 24469 ;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 9, ADDITIONAL: 0 ;; QUESTION SECTION: ;www.whitehouse.gov.IN A ;; ANSWER SECTION: www.whitehouse.gov. 7195IN CNAME www.whitehouse.gov.edgesuite.net. www.whitehouse.gov.edgesuite.net. 296 IN CNAME a1289.g.akamai.net. a1289.g.akamai.net. 16 IN A 63.211.236.238 a1289.g.akamai.net. 16 IN A 63.211.236.232 ;; AUTHORITY SECTION: g.akamai.net. 819 IN NS n3g.akamai.net. g.akamai.net. 819 IN NS n4g.akamai.net. g.akamai.net. 819 IN NS n5g.akamai.net. g.akamai.net. 819 IN NS n6g.akamai.net. g.akamai.net. 819 IN NS n7g.akamai.net. g.akamai.net. 819 IN NS n8g.akamai.net. g.akamai.net. 819 IN NS n0g.akamai.net. g.akamai.net. 819 IN NS n1g.akamai.net. g.akamai.net. 819 IN NS n2g.akamai.net. ;; Query time: 4 msec ;; SERVER: 192.168.0.5#53(192.168.0.5) ;; WHEN: Sun Apr 30 22:57:21 2006 ;; MSG SIZE rcvd: 305 I wonder what the utility of having a caching server on my laptop would be if things are kept on the router to start with. Of course, if I set up a caching server on my laptop, this has the advantage that it can find addresses that I found while working at school, I suppose. Still --- why would the caching be an advantage over defaulting to the router, except in this situation? I don't think there's much advantage, unless you run a full DNS as I set up. Under Fedora Linux 5 it takes
MacGroup: cable troubles
Hey folks, Another has anyone... question: Has anyone else using Insight been having trouble with getting web pages to load recently (i.e. last couple of days)? I've been getting error which look like DNS errors quite frequently when browsing, e.g. errors like Safari can?t open the page ?http://www.richos.com/? because it can?t find the server www.richos.com. It isn't just me, either, because my step-daughter's fiance was having the same kind of troubles this morning, along with an unbelievably slow internet connection. Hints? Tips for fixing? Others with trouble? Bill -- next part -- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 2373 bytes Desc: not available Url : http://www.math.louisville.edu/pipermail/macgroup/attachments/20060430/34a55b16/attachment.bin
MacGroup: cable troubles
yes, something is wrong at insight.it is very slow right now.sandy On Apr 30, 2006, at 6:55 PM, Bill Rising wrote: Hey folks, Another has anyone... question: Has anyone else using Insight been having trouble with getting web pages to load recently (i.e. last couple of days)? I've been getting error which look like DNS errors quite frequently when browsing, e.g. errors like Safari can?t open the page ?http://www.richos.com/? because it can?t find the server www.richos.com. It isn't just me, either, because my step-daughter's fiance was having the same kind of troubles this morning, along with an unbelievably slow internet connection. Hints? Tips for fixing? Others with trouble? Bill Sandra Schreiber Schreiber Silver/Schreiber Appraisal Associates 50 River Hill Road Louisville, Ky 40207 502-893-3308 sgssilver at insightbb.com www.schreibersilver.com | The next meeting of the Louisville Computer Society will | be May 23 at Pitt Academy, 6010 Preston Highway. | The LCS Web page is http://www.kymac.org. | List posting address: mailto:macgroup at erdos.math.louisville.edu | List Web page: http://erdos.math.louisville.edu/macgroup
MacGroup: cable troubles
Yes, and oddly enough, the problem seems to be limited to my wireless Powerbook. The wired connection to the G4 seems fine, and my wife's wireless Windoze box doesn't seem particularly out of whack. Insight did email two days ago to the effect that they were performing system upgrades, and I wouldn't rule out the possibility that their changes may have somehow mucked up the Airport connection. That said, the Powerbook is also reporting very weak signal strength, and I have no immediate explanation for that. On Apr 30, 2006, at 6:55 PM, Bill Rising wrote: Hey folks, Another has anyone... question: Has anyone else using Insight been having trouble with getting web pages to load recently (i.e. last couple of days)? I've been getting error which look like DNS errors quite frequently when browsing, e.g. errors like Safari can?t open the page ?http://www.richos.com/? because it can?t find the server www.richos.com. It isn't just me, either, because my step-daughter's fiance was having the same kind of troubles this morning, along with an unbelievably slow internet connection. Hints? Tips for fixing? Others with trouble? Bill | The next meeting of the Louisville Computer Society will | be May 23 at Pitt Academy, 6010 Preston Highway. | The LCS Web page is http://www.kymac.org. | List posting address: mailto:macgroup at erdos.math.louisville.edu | List Web page: http://erdos.math.louisville.edu/macgroup
MacGroup: cable troubles
Got an email from Insight that they are rebuilding their servers etc. until May 15...jf On Apr 30, 2006, at 6:55 PM, Bill Rising wrote: Hey folks, Another has anyone... question: Has anyone else using Insight been having trouble with getting web pages to load recently (i.e. last couple of days)? I've been getting error which look like DNS errors quite frequently when browsing, e.g. errors like Safari can?t open the page ?http://www.richos.com/? because it can?t find the server www.richos.com. It isn't just me, either, because my step-daughter's fiance was having the same kind of troubles this morning, along with an unbelievably slow internet connection. Hints? Tips for fixing? Others with trouble? Bill | The next meeting of the Louisville Computer Society will | be May 23 at Pitt Academy, 6010 Preston Highway. | The LCS Web page is http://www.kymac.org. | List posting address: mailto:macgroup at erdos.math.louisville.edu | List Web page: http://erdos.math.louisville.edu/macgroup
MacGroup: cable troubles
Insight has been doing upgrades recently. My service was out all evening Thursday night. I have had lackluster service for quite a while now. But it has gotten better recently. Brian On Apr 30, 2006, at 7:05 PM, B. Eric Bradley wrote: Yes, and oddly enough, the problem seems to be limited to my wireless Powerbook. The wired connection to the G4 seems fine, and my wife's wireless Windoze box doesn't seem particularly out of whack. Insight did email two days ago to the effect that they were performing system upgrades, and I wouldn't rule out the possibility that their changes may have somehow mucked up the Airport connection. That said, the Powerbook is also reporting very weak signal strength, and I have no immediate explanation for that. On Apr 30, 2006, at 6:55 PM, Bill Rising wrote: Hey folks, Another has anyone... question: Has anyone else using Insight been having trouble with getting web pages to load recently (i.e. last couple of days)? I've been getting error which look like DNS errors quite frequently when browsing, e.g. errors like Safari can?t open the page ?http://www.richos.com/? because it can?t find the server www.richos.com. It isn't just me, either, because my step-daughter's fiance was having the same kind of troubles this morning, along with an unbelievably slow internet connection. Hints? Tips for fixing? Others with trouble? Bill | The next meeting of the Louisville Computer Society will | be May 23 at Pitt Academy, 6010 Preston Highway. | The LCS Web page is http://www.kymac.org. | List posting address: mailto:macgroup at erdos.math.louisville.edu | List Web page: http://erdos.math.louisville.edu/macgroup | The next meeting of the Louisville Computer Society will | be May 23 at Pitt Academy, 6010 Preston Highway. | The LCS Web page is http://www.kymac.org. | List posting address: mailto:macgroup at erdos.math.louisville.edu | List Web page: http://erdos.math.louisville.edu/macgroup
MacGroup: cable troubles
On Apr 30, 2006, at 6:55 PM, Bill Rising wrote: Has anyone else using Insight been having trouble with getting web pages to load recently (i.e. last couple of days)? I've been getting error which look like DNS errors quite frequently when browsing, e.g. errors like Safari can?t open the page ?http://www.richos.com/? because it can?t find the server www.richos.com. It isn't just me, either, because my step-daughter's fiance was having the same kind of troubles this morning, along with an unbelievably slow internet connection. It started for me a few days ago, and I suspect it's related to the upgrade work threatened in an email they sent out last week. It is definitely DNS related. Their news servers are all messed up too. Hints? Tips for fixing? Others with trouble? The only way I know to cure it is to use another DNS. I set up a caching DNS in my basement on a Linux machine. (It's actually my MythTV server.) This completely cured the problem. In fact, it's a lot faster than their servers were before the recent troubles. I suppose the same thing could be done on Mac OS X, but I've never tried. There's probably a Web page telling how to do it. It only took about five minutes to get running under Linux, so I suspect it pretty easy under Mac OS X. | The next meeting of the Louisville Computer Society will | be May 23 at Pitt Academy, 6010 Preston Highway. | The LCS Web page is http://www.kymac.org. | List posting address: mailto:macgroup at erdos.math.louisville.edu | List Web page: http://erdos.math.louisville.edu/macgroup
MacGroup: cable troubles
Here's a link to a note about setting up a local caching DNS on Mac OS X. http://www.macosxhints.com/article.php?story=20050420025219402 | The next meeting of the Louisville Computer Society will | be May 23 at Pitt Academy, 6010 Preston Highway. | The LCS Web page is http://www.kymac.org. | List posting address: mailto:macgroup at erdos.math.louisville.edu | List Web page: http://erdos.math.louisville.edu/macgroup
MacGroup: cable troubles
I'm sure it's a great link. Too bad I get the message Safari can't find the server. The past couple days there have been periods of no service to somewhat decent service. I'll try again later, or try the steps from the insight letter. Luann Lee Larson wrote: Here's a link to a note about setting up a local caching DNS on Mac OS X. http://www.macosxhints.com/article.php?story=20050420025219402 | The next meeting of the Louisville Computer Society will | be May 23 at Pitt Academy, 6010 Preston Highway. | The LCS Web page is http://www.kymac.org. | List posting address: mailto:macgroup at erdos.math.louisville.edu | List Web page: http://erdos.math.louisville.edu/macgroup | The next meeting of the Louisville Computer Society will | be May 23 at Pitt Academy, 6010 Preston Highway. | The LCS Web page is http://www.kymac.org. | List posting address: mailto:macgroup at erdos.math.louisville.edu | List Web page: http://erdos.math.louisville.edu/macgroup
MacGroup: cable troubles
On Apr 30, 2006, at 20:46, Luann Johnson wrote: I'm sure it's a great link. Too bad I get the message Safari can't find the server. This is what work hours are for ;) The past couple days there have been periods of no service to somewhat decent service. I'll try again later, or try the steps from the insight letter. I'm certainly going to call them... and I think I'll ask what their rebate policy is. Bill -- next part -- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 2373 bytes Desc: not available Url : http://www.math.louisville.edu/pipermail/macgroup/attachments/20060430/21672aee/attachment.bin
MacGroup: cable troubles
On Apr 30, 2006, at 20:27, Lee Larson wrote: Here's a link to a note about setting up a local caching DNS on Mac OS X. http://www.macosxhints.com/article.php?story=20050420025219402 Ok --- I read through the hint, and read the rather heated discussion (since now everything is working quite well, suddenly). One of the discussants said that most routers will cache DNS info for later use --- if this were the case, then there would be no need to have the local caching DNS server (according to the poster). I ran his test to see where my laptop gets its info about apple.com from inside terminal: host -v www.apple.com and found that the DNS info actually did come from my router. This now confuses me, since I was having trouble getting to apple.com when the apparent DNS problems were happening. I wonder what the utility of having a caching server on my laptop would be if things are kept on the router to start with. Of course, if I set up a caching server on my laptop, this has the advantage that it can find addresses that I found while working at school, I suppose. Still --- why would the caching be an advantage over defaulting to the router, except in this situation? Bill -- next part -- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 2373 bytes Desc: not available Url : http://www.math.louisville.edu/pipermail/macgroup/attachments/20060430/b71bb8b2/attachment.bin
MacGroup: cable troubles
Lee's link is not for anyone whom is inexperienced in Terminal, Pico etc...jf On Apr 30, 2006, at 8:46 PM, Luann Johnson wrote: I'm sure it's a great link. Too bad I get the message Safari can't find the server. The past couple days there have been periods of no service to somewhat decent service. I'll try again later, or try the steps from the insight letter. Luann Lee Larson wrote: Here's a link to a note about setting up a local caching DNS on Mac OS X. http://www.macosxhints.com/article.php?story=20050420025219402 | The next meeting of the Louisville Computer Society will | be May 23 at Pitt Academy, 6010 Preston Highway. | The LCS Web page is http://www.kymac.org. | List posting address: mailto:macgroup at erdos.math.louisville.edu | List Web page: http://erdos.math.louisville.edu/macgroup
MacGroup: cable troubles
Bill Rising wrote: Hey folks, Another has anyone... question: Has anyone else using Insight been having trouble with getting web pages to load recently (i.e. last couple of days)? I've been getting error which look like DNS errors quite frequently when browsing, e.g. errors like I got an e-mail from insight which suggested this remedy: Reset your cable modem by unplugging it from power for 60 seconds. Reset any home networking equipment (if installed.) Shutdown and restart all computers. These steps will resolve most connectivity problems. If your service is still not working properly after completing these steps please call 866-296--9897 for further assistance... Suzanne Blake | The next meeting of the Louisville Computer Society will | be May 23 at Pitt Academy, 6010 Preston Highway. | The LCS Web page is http://www.kymac.org. | List posting address: mailto:macgroup at erdos.math.louisville.edu | List Web page: http://erdos.math.louisville.edu/macgroup
