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More Comcast DNS Woes
Second outage in six days
Fresh off the major DNS outage of last week, users in our Comcast Forum report more widespread DNS issues tonight. Members are sharing various workarounds until the issues are resolved.
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File Quit
Mac Geek
Premium Member
join:2002-11-28
Richmond, TX

1 recommendation

File Quit

Premium Member

It's sad...

You would think they would keep a close eye after that major outage last week. Oh well, we have backup DNS servers

Yborg
Premium Member
join:2002-01-01
Bavaria

Yborg

Premium Member

Re: It's sad...

i could not surf at all, but managed to keep my connection to www.di.fm without a problem. Comcast started to have issues like they used to, wonder how many more will happen

sitrix
join:2002-04-15
Tacoma, WA

sitrix to File Quit

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Yup, very sad and their phone system is HAMMERED badly... DSLR to the rescue!

For those who were in trouble like me, there is a thread about this issue that can help. »[DNS] 04-2005 Connection Problems - Discussion

ftodd
join:2001-04-11
Pittsburgh, PA

ftodd

Member

Re: It's sad...

I switched to Vonage and haven't had any issues whatsoever. I highly recommend to anyone!

linuxkiddy
@172.21.x.x

linuxkiddy

Anon

Re: It's sad...

god you must be dumb, DNS is Domain Name System, Vontage uses Ip adresses, of course it will work
ATT Guy2
join:2002-07-09
Aurora, IL

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Member

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All I have to say is Thank You for the alternate DNS server...I just plugged them in and back on the net.

File Quit
Mac Geek
Premium Member
join:2002-11-28
Richmond, TX

1 recommendation

File Quit

Premium Member

Re: It's sad...

On behalf of the techies here that proposed the solution, your welcome. I was just relaying information from past outages and FAQ posts.

Nerdtalker
Working Hard, Or Hardly Working?
MVM
join:2003-02-18
San Jose, CA

Nerdtalker to ATT Guy2

MVM

to ATT Guy2
I just use 4.2.2.1, 4.2.2.2, and 4.2.2.3, I haven't used Comcast's DNS servers for at least 2 years or so.

DHRacer
Tech Monkey
join:2000-10-10
Lake Arrowhead, CA

DHRacer

Member

Re: It's sad...

Is there some reason why you use Verizon's LA DNS servers (besides the fact that Comcast's DNS Servers don't work)?

Why not other Comcast DNS servers they might have?

Nerdtalker
Working Hard, Or Hardly Working?
MVM
join:2003-02-18
San Jose, CA

Nerdtalker

MVM

Re: It's sad...

The verison ones have always been faster for me.

jansm38
Vn800-B
Premium Member
join:2003-05-19
Blackwood, NJ

jansm38

Premium Member

Re: It's sad...

I use Comcast as the Primary and 4.2.2.2 as the secondary.

I never noticed any outage since most of my page requests were already cached in XP and anything new went to the Secondary. There may have been a slight delay while waiting a second or two for the Comcast DNS request to time out.

It's generally not a good idea to use someone elses DNS server as your Primary as it's putting an extra unanticipated load on them. When they do their requirements forcasting they only use their own customer base in the equation, they're not considering the load of a few million extra requests coming from the Comcast network. What could end up happening if the load gets to be too much is the other DNS host could block requests from anyone not on their network, that would be a bad thing.

cp
Premium Member
join:2004-05-14
Wheaton, IL

cp to File Quit

Premium Member

to File Quit
Well all's I can say is thanks BBR for letting me know about the alternate DNS option, so now I don't have to be offline.

Augie Doggie
@comcast.net

Augie Doggie to File Quit

Anon

to File Quit
Biggest disaster for a company claiming to have fastest connection but can't figure out to maintain a simple DNS server....been using another isp's DNS server and works great...anybody knows some website to get ip's for dns??

pkarlos_76
join:2004-08-24
Edmonton, AB

pkarlos_76 to File Quit

Member

to File Quit
said by File Quit:

You would think they would keep a close eye after that major outage last week. Oh well, we have backup DNS servers
You really think ths is comcasts fault, let me see the issue begins with latency, and timeouts, then escalates into a fullblow outage. Making the DNS servers in accessible, needless to ask, what outside force could be taking down the servers?

dsaliem
Arrested Development
Premium Member
join:2002-07-17
Visalia, CA

dsaliem

Premium Member

Re: It's sad...

said by pkarlos_76:

said by File Quit:

You would think they would keep a close eye after that major outage last week. Oh well, we have backup DNS servers
You really think ths is comcasts fault, let me see the issue begins with latency, and timeouts, then escalates into a fullblow outage. Making the DNS servers in accessible, needless to ask, what outside force could be taking down the servers?
Good point P?

fritzmp
Biker Tux
Premium Member
join:2001-08-29
Warrenton, VA

fritzmp to pkarlos_76

Premium Member

to pkarlos_76
said by pkarlos_76:
said by File Quit:

You would think they would keep a close eye after that major outage last week. Oh well, we have backup DNS servers
You really think ths is comcasts fault, let me see the issue begins with latency, and timeouts, then escalates into a fullblow outage. Making the DNS servers in accessible, needless to ask, what outside force could be taking down the servers?
Comcast
»uptime.netcraft.com/up/g ··· cast.com

Uptime does not look good and lots going on their in that picture.

AT&T
»uptime.netcraft.com/up/g ··· =att.com

What would you expect, UNIX is meant to run the net.

Cox
»uptime.netcraft.com/up/g ··· =cox.com

Notice the uptime improvement when they upgraded to win2003 server. I think win2k server is too patched together to be affective as a critical service server and needs to be patched via upgrade to win2003. Out side influence indeed.
damox
Premium Member
join:2002-01-07
Olympia, WA

damox to File Quit

Premium Member

to File Quit
Well just remember what Joebob38 said, "The issue has been resolved and the problem will not happen again."

»[DNS] DNS Outage is Resolved - Please Read

Cough cough! Chortle chortle!

Yeah well, you almost knew when he said that, it would definitely happen again!
bradleym
join:2002-08-05
Peoria, IL

bradleym

Member

Re: It's sad...

That's exactly the thread I just went looking for - I specifically remembered his 'won't happen again' comment.

JoeyDee
Premium Member
join:2004-07-23
Las Vegas, NV

JoeyDee to File Quit

Premium Member

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It was out last night and again tonight! (Wednesday around 5PM)

Thanks to all the folks who posted here about just changing my router's dns servers. Changed 'em, saved the settings, rebooted my computer and I'm happening!

Joe

ftodd
join:2001-04-11
Pittsburgh, PA

ftodd to File Quit

Member

to File Quit
I switched my DNS servers over to a local ISP based in the Pittsburgh area. Hopefully I won't have anymore problems.
Millennium
join:2002-10-10
Seattle, WA

Millennium to File Quit

Member

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Just called comcast they said With in 2 to 3 hours (It's 8:53 pst time ) the DNS problem should be fixed there working on it now. every day is getting to be really ***king annoying lol

pkarlos_76
join:2004-08-24
Edmonton, AB

pkarlos_76

Member

Re: It's sad...

said by Millennium:

Just called comcast they said With in 2 to 3 hours (It's 8:53 pst time ) the DNS problem should be fixed there working on it now. every day is getting to be really ***king annoying lol
Just think how I feel repeating the same thing to customers 110+ times in a 3.5 hour period. :+/

P.S. I'm gonna grab some throat lozenges, just in case it happens again tomorrow.
Newegg4
Comcast steals modems
join:2004-11-14
Norcross, GA

1 edit

Newegg4

Member

Level3 DNS servers

I wonder why Level3 don't get pissed off with all the people using their servers.
neftv
join:2000-10-01
Broomall, PA

neftv

Member

Re: Level3 DNS servers

Why should they? Actually it's good PR.

Phoenix__1
join:2003-07-17
Holyoke, MA

Phoenix__1 to Newegg4

Member

to Newegg4
Can you hear me now? No, not if you're a Comcast Customer. Their internal departments do not talk to one another in any way. Level3 won't even notice it, until either they suddenly ask themselves why the sudden server load or enough people call in.

Verizon on the other hand has been nothing but friendly and quick to respond. I would think just about any other company could do better, then how Comcast is doing now, as well as in their past. Support & Service should be the #1 concern with any ISP, but it doesn't seem to be with Comcast. As long as you pay your bill, they feel there is no problem.

I would not be surprised to find out all these DNS problems could be due to miss use of their servers some how. Their abuse department is more like a little kid who does not want to wake up for school... The time they do, it's to late.
neftv
join:2000-10-01
Broomall, PA

neftv

Member

Educate me

What can cause a DNS server to hic up?
And why can't Comcast just do a DHCP refresh to all subscribers so that they get functioning DNS server either like 4.2.2.1 etc when they know they have a long repair ahead of them?

File Quit
Mac Geek
Premium Member
join:2002-11-28
Richmond, TX

File Quit

Premium Member

Re: Educate me

It is because 4.2.2.2 is not a Comcast DNS server. They do not support it or even have access to it. There is issues with using someone else's DNS servers, they must use their own.
neftv
join:2000-10-01
Broomall, PA

neftv

Member

Re: Educate me

So why don't they have a backup DNS server on hot standby and they just take the active ones off and take their time to figure out how to fix for good?
I would think such a national ISP should have back ups.
Is my asking this to out of line?

File Quit
Mac Geek
Premium Member
join:2002-11-28
Richmond, TX

File Quit

Premium Member

Re: Educate me

They have a 2nd server farm, and apparently that is having issues as well. That is usually the "back up". Both are messed up right now at the moment. I do believe they should have other backups just in case, but pushing A DHCP request wouldnt work unless your lease expired that day at that moment, which is rare since we have 7 day DHCP leases.

Phoenix__1
join:2003-07-17
Holyoke, MA

Phoenix__1

Member

DSL or another provider

I had Comcast for the longest time. Only because they where the only high speed Internet service in my area. Through out that whole time, my system was hacked into and their abuse department slept and replied with auto email only. Less then 5min after the tech had hooked me up, it had already started. Thus I had not even had the chance to even use my Internet before the problem began.

Their policy on any problem, unless 1,000 or more people call up and report it is... "It's your fault." Even if they admit to themselves that they have a problem, it has to be your fault. So many people who reported the DNS problems got that reply before it got out of hand.

Also they like to double bill you. Do you own your own modem? You do? Prove it! On DSLreports.com we have users who where told to prove they own their own modems, who where getting billed for renting them. Others who where being billed for cable boxes they never had.

60.95 if you do not use any of their other services, but 15.00 off if you do. Either way, they'll get the money and that is all they really care about.

With Verizon it's only 29.95 for the same speed 3MB download, but you get a higher upload speed of 756kb. Comcast still uses 256kb max. Although I personally do not worry about my home upload speed.

My advice... Go with another provider if you can. I was lucky enough to have finally been able to sign up with Verizon. It took a while to get it at my address, but it's here & I'm not looking back.
jfwjxn
join:2002-03-26
Potterville, MI

jfwjxn

Member

Re: DSL or another provider

Yes, Comcast has it's problems, but it must say something if I'm back with them after having SBC at 3008/512 for $29.95, the problem is at least Comcast's tech support is English speaking, while SBC's tends to be non-native English speaking personnel. And Comcast's max upload is now longer (at least in most areas) 256 Kb/s, it is now 384 Kb/s.
neftv
join:2000-10-01
Broomall, PA

neftv to Phoenix__1

Member

to Phoenix__1
I wouldn't go with Verizon unless it was a deal with Fios. Noway would I go back to having telco service from them. Comcast by and far been reliable for me locally because we got good techs in our area I think and the one is very responsive in the boards sometimes. I kind like learning about this technology and its problems and I wouldn't mind learning what is causing the DNS issue.

Lostintech
Phillydude
Premium Member
join:2004-11-21
Philadelphia, PA

Lostintech to Phoenix__1

Premium Member

to Phoenix__1
said by Phoenix__1:

With Verizon it's only 29.95 for the same speed 3MB download, but you get a higher upload speed of 756kb. Comcast still uses 256kb max. Although I personally do not worry about my home upload speed.

My advice... Go with another provider if you can. I was lucky enough to have finally been able to sign up with Verizon. It took a while to get it at my address, but it's here & I'm not looking back.
They use 384 now. About verizon you have to be within 10,00 feet of the CO to get the 3 meg. I don't use comcast's crappy dns servers, we have way to many hackers on the philly dns network and are abusing the dns servers here. I just use 4.2.2.1-4.2.2.6 level3 is much better than crappy comcast's dns servers. I have very little problems with comcast but if I do I just post here on bbr. Comcast's support is 3thrd party therefor they know nothing except for what's in front of them on the computer screen.

••••••••••

nixen
Rockin' the Boxen
Premium Member
join:2002-10-04
Alexandria, VA

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to Phoenix__1
said by Phoenix__1:

I had Comcast for the longest time. Only because they where the only high speed Internet service in my area. Through out that whole time, my system was hacked into and their abuse department slept and replied with auto email only. Less then 5min after the tech had hooked me up, it had already started.
I'm not sure how your inadequately protected/prepared systems is a legitimate gripe against Comcast.

-tom

Fluker
join:2005-04-07
West Lafayette, IN

1 edit

Fluker to Phoenix__1

Member

to Phoenix__1
Um, it's your fault your system was compromised.

I would NEVER think to connect any of my computers to the internet without a NAT box of some sort.

Once just for humor I let my girlfriend connect directly to her DSL. It wasn't 30 minutes later that the lights were going nuts because the machine had joined some bot army.

Do this for a secure system
(Although its relative because this applies to XP)
Get a router - I can't stress the importance of this enough!!
•only install the updates that will install on install whatever active-x plugins you need and then DISABLE active-x downloading entirely
•Create a User account (or limited as the account wizard likes to call it) and make that your daily use account. - Do not use a full privileged account unless you know of EVERY program that has the potential to run on your computer
•Don't go to free porn sites, do any kind of searches for free screensavers or go to shady ringtone sites.

Basically, once your computer is no longer able to be reached from the outside (thanks to the router) and internet explorer is patched against most common exploits (because of the pre SP1 updates), you should have very few problems unless you have a hobby that involves kazaa, actually listening to websites that claim you have spyware, or ruining privacy for the sheer joy of it.

Doing that ought to solve about 98% of "comcasts" issues

Phoenix__1
join:2003-07-17
Holyoke, MA

Phoenix__1

Member

Re: If your system was compromised.....

said by Fluker:

Um, it's your fault your system was compromised.

I would NEVER think to connect any of my computers to the internet without a NAT box of some sort.

Once just for humor I let my girlfriend connect directly to her DSL. It wasn't 30 minutes later that the lights were going nuts because the machine had joined some bot army.

Do this for a secure system
(Although its relative because this applies to XP)
Get a router - I can't stress the importance of this enough!!
•only install the updates that will install on install whatever active-x plugins you need and then DISABLE active-x downloading entirely
•Create a User account (or limited as the account wizard likes to call it) and make that your daily use account. - Do not use a full privileged account unless you know of EVERY program that has the potential to run on your computer
•Don't go to free porn sites, do any kind of searches for free screensavers or go to shady ringtone sites.

Basically, once your computer is no longer able to be reached from the outside (thanks to the router) and internet explorer is patched against most common exploits (because of the pre SP1 updates), you should have very few problems unless you have a hobby that involves kazaa, actually listening to websites that claim you have spyware, or ruining privacy for the sheer joy of it.

Doing that ought to solve about 98% of "comcasts" issues
Sounds simple, but wrong.

1.) Had router
2.) Had up to date OS (Windows XP)
3.) Had up to date firewall
4.) Set max setting on firewall
5.) Had up to date ant-virus
6.) Had max setting to anti-virus
7.) Had anit-spyware
8.) Had anti-adware
9.) Added 32 letters, number, spaces, and sybols for password on all accounts
10.) Turned off guest account

A) Problem started from the moment my pc was connected to comcast (before the tech even left the house)
B) Reported problem to Comcast Abuse for 1yr
C) No reply from abuse for 7 months
D) Took 1yr for them to finally act on the matter
E) Hacker was using Comcast networks, so it was their problem
D) Removed Comcast and problem has never happen again.
sanstrom5
join:2005-01-26
Vancouver, WA

sanstrom5

Member

Re: If your system was compromised.....

this coming from someone that has this "
Want to know how to get a free mini mac? Send me a pm" as thier signature??? I'm no fan of comcast but I find that people who f up thier computers usually either blame the crappy computer or something else.. In your case Comcast...

jhall14111
@68.52.x.x

jhall14111 to Phoenix__1

Anon

to Phoenix__1
Comcast Speeds are actually 4Mbps Down and 384k up for silver and 6 Mbps Down and 768k up for the Gold Package. if youre gonna flame do it right and dont slander.
neftv
join:2000-10-01
Broomall, PA

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Member

to File Quit

Re: Educate me

You know I would think that DHCP, DNS, Email, Newsgroup those kind of services that been around for a while for any ISP would be the last to go wrong just because I thought that knowledge in those things would be rock solid and just work because they have them down pat. I guess I am wrong or the ISP has some new IT people just learning the ropes.

nixen
Rockin' the Boxen
Premium Member
join:2002-10-04
Alexandria, VA

1 recommendation

nixen

Premium Member

Re: Educate me

said by neftv:

You know I would think that DHCP, DNS, Email, Newsgroup those kind of services that been around for a while for any ISP would be the last to go wrong just because I thought that knowledge in those things would be rock solid and just work because they have them down pat. I guess I am wrong or the ISP has some new IT people just learning the ropes.
You'd be wrong. Core services such as Email, DNS and Newsgroups are all fairly esoteric skill sets. They become particularly challenging when you run any of them with any level of scale and/or complexity.

Never confuse the apparent ease of doing things on your home network (or even a small office) with what it takes to provide a service to thousands or millions of users.

-tom

Morac
Cat god
join:2001-08-30
Riverside, NJ

Morac to File Quit

Member

to File Quit
The main problem is that the DNS servers seem to stop responding. Previously Comcast had multiple DNS servers throughout the country. They thought it would be a good idea to consolidate all these servers into a handful (probably to save money). Unfortunately this is what happens when you put all your eggs in one basket.

•••

alconnecticut
@comcast.net

alconnecticut to neftv

Anon

to neftv
Set your DNS servers to your choice (4.2.2.2 / 4.2.2.3). DHCP will assign your IP and have no affect on your DNS servers. As Kilted Freak said...

"Your DNS servers' IPs have no effect on yours (and vice versa). The only time the one or the other counts is if there are access controls in place."

sitrix
join:2002-04-15
Tacoma, WA

sitrix

Member

hmm.....

I still don't understand why not to run DNS server through Load balancers. Cluster DNS servers and forward block of IP's to one of lets eight servers. That way for times when server is going out just take it out of rotation without having customers forced into swapping IP's. It would add a bit of response time, but really boost redundancy. Correct me if I am wrong....

••••••••••••

sonofjay
Mission Accomplished - Bush May 1, 2003
MVM
join:2001-05-14
Malden, MA

1 recommendation

sonofjay

MVM

"the problem will not happen again"....right?

I guess Comcast HSI employee's have a little too much blind faith.
quote:
Comcast engineers have resolved the issue that affected most of it's customers yesterday, and there should be no repeats

»[DNS] DNS Outage is Resolved - Please Read
quote:
The issue has been resolved and the problem will not happen again. It is safe to go back to them, this is encouraged.

»[DNS] DNS Outage is Resolved - Please Read
quote:
it's resolved and fail safes have and are being put into place.

»[DNS] DNS Outage is Resolved - Please Read

••••
joecr
join:2003-06-14
Orem, UT

joecr

Member

ComCast strikes again

Well I'm glad to be moving away from Comcast. I just set my router to use a different set of DNS servers since some site just were not coming up while others were. The site that refused to come up with the comcast DNS servers is xbox.com which of course was having no problems.

oldTDNickell5
Premium Member
join:2000-12-19
Federal Way, WA

oldTDNickell5

Premium Member

Damage Control!

I believe Comcast has some damage control to deal with again.:(:p
joecr
join:2003-06-14
Orem, UT

joecr

Member

Re: Damage Control!

They tried that when I told them to turn off my service for my phone. It has been having issues just like the DNS servers & I can't even do anything about that issue. They even offered me a free month to stay with them. My only problem is that I can't stand a free month of a worthless service. I will only go back if they are the only choice where I live.

HotRodFoto
Premium Member
join:2003-04-19
Denver, CO

HotRodFoto

Premium Member

sigh.....

This is getting old but damn fast! Think tommorow I will start looking into DSL.

KeepOnRockin
Music Lover Forever
Premium Member
join:2002-11-08
Beaverton, OR

2 edits

KeepOnRockin

Premium Member

No Problems for Me


I use Comcast and did not notice any DNS issues tonight.

I guess the trouble only some people had.


Nevermind. I did run into DNS issues after posting this. lol

jkj860
The Final Frontier
join:2002-01-10
Valparaiso, IN

1 recommendation

jkj860

Member

Thank's BBR !

Back online thank's to the info from this forum.

alconnecticut
@comcast.net

alconnecticut

Anon

DNS outage and sched maint

Interesting that the service was restored 11 minutes after the scheduled maintenance was completed.

Scheduled Maintenance - Completed at 4/12/2005 11:25:49 PM EDT

(CENTRAL CALIFORNIA/YUBAHE - Comcast Engineers will be performing network maintenance in your area. This may temporarily affect your Internet connection. We apologize for any inconvenience this may cause. This outage was logged at : 4/12/2005 8:00:00 AM EDT.)

General Outage - Resolved at 4/12/2005 11:36:33 PM EDT

(CENTRAL CALIFORNIA/ekgca.ca - Connection to the Internet is currently unavailable. Our technicians are aware of the situation and are working to resolve the issue. This outage was logged at : 4/12/2005 1:26:00 PM EDT.)
alconnecticut

alconnecticut

Anon

Interesting that the service was restored 11 minutes after the scheduled maintenance was completed.

Scheduled Maintenance - Completed at 4/12/2005 11:25:49 PM EDT

(CENTRAL CALIFORNIA/YUBAHE - Comcast Engineers will be performing network maintenance in your area. This may temporarily affect your Internet connection. We apologize for any inconvenience this may cause. This outage was logged at : 4/12/2005 8:00:00 AM EDT.)

General Outage - Resolved at 4/12/2005 11:36:33 PM EDT

(CENTRAL CALIFORNIA/ekgca.ca - Connection to the Internet is currently unavailable. Our technicians are aware of the situation and are working to resolve the issue. This outage was logged at : 4/12/2005 1:26:00 PM EDT.)

ghostlisting
join:2005-03-10
Denver, CO

ghostlisting

Member

in the middle of an outage right now

booooo hissssss
brodeur
join:2001-04-08
Cranford, NJ

brodeur

Member

Re: Comcarp

too bad i'm not offered optimum online in my neighborhood. to think of it, very satisfied customers with Opt are just 2 freakin towns away.. WHY'D WE GET STUCK WITH COMCAST?!?!
blondebaldy
join:2001-12-13
Williamsport, PA

blondebaldy

Member

Re: Comcarp

What i fail to understand is this. If you people who use comcast know that their DNS is an issue for them at the moment then why do u your their DNS servers. Use other DNS servers that are faster and more reliable until comcast gets their DNS issues resolved.......its possible that this is another DNS poisoning attack on their DNS servers or it could be part of the CRAN update that they are doing as well.....bottom line is if you know their DNS sucks then don't use them plan and simple

lllIIllIIlIIIIllIIII

Anon

Good thing I never use Comcast's DNS servers.
paralagrat
join:2000-07-02
Satsuma, AL

paralagrat

Member

I remember when I said the brilliant idea of 2 national dns servers vs 2 in most cities was gonna bite them in the ass. Furthermore I remember when this happened the other day and that one guy claiming to work for comcast said "it will never happen again." My local dns servers 68.63.0.5 and 68.63.0.6 are still up and they also still ping 5ms like always. Since they put me on the national servers I have ping ~60ms to it. I know this isn't cs:s but 5ms vs 60ms is a difference. It shouldn't make a difference but that's not the only warning sign. These 2 outages so close together should give you a pretty good idea of what is happening. I know there are some who have and always will have problems but most "normally" don't. I personally have had minimal problems since the comcast@home days back in 99.

•••

insomniac84
join:2002-01-03
Schererville, IN

insomniac84

Member

Just don't use comcast dns servers.
I just use 4.2.2.1 and 4.2.2.2 just because its much easier to remember and tell people to use. I hate having to look up in a router what the dns is, those addresses take out that step.

thisismyname1
join:2004-07-26
00000

thisismyname1

Member

I got no problems since I changed one of them to a Verizon DNS server and one to SBC DNS Server.

smooth now but would still like them to get this fixed so I don't have to use others DNS servers.
Jericho34
join:2005-03-15
Saint Thomas, PA

Jericho34

Member

This has has been going on all week. One test came back with a 45% loss from the west coast and 51% from the east. I'm located in Franklin County PA.

»/quali ··· /1704405
Jericho34

Jericho34

Member

Re: Packet Loss Is So HIGH

Here is one I ran on the 09 Apr 05.

»/quali ··· /1700619

Plus look at these speed test.

2005-04-10 12:31:58 Speed test @ nyc.speakeasy.net 51/95 kbps
2005-04-10 02:40:01 Speed test @ ec 242/43 kbps
2005-04-10 02:33:24 Speed test @ pit.speakeasy.net 48/86 kbps

baby_bear
@comcast.net

baby_bear

Anon

Hmm, a 2nd DNS outage eh!? Both times I haven't noticed any troubles. I use the following;

63.240.76.4 32 ms 32 ms 31 ms ns6.attbi.com
204.127.198.4 65 ms 67 ms 67 ms ns1.attbi.com
12.242.20.50

Last one goes back into ATTBI, but doesn't resolve to a attbi domain. Been using these since ATTBI's switch over to their own network(disconnect from @home). Which was what about 4 years or so ago? Think in all that time only had DNS trouble once or twice.
rockslammer_0_
join:2001-06-11
Burton, MI

1 edit

rockslammer_0_

Member

I have web servers in data centers, I have experienced a number of ddos ( distributed denial of service) attacks. During the outage there was some response from the COMCRAP DNS Servers, so it was not a case of the DNS records being lost or "poisoned".

News from AREA 51:
"... there are thousands of infected zombie computers owned by Comcast subscribers making DNS requests for Google.com at the maximum burstable COMCRAP upload rate, the zombies are being run from an IRC channel by Russians being paid by a telco ..."(humor - unconfirmed)


Thanks for posting the LEVEL3 DNS Servers, guess I will try them but they seem to be just 2 IP's ( clustered I am hoping ). 2 ips and an old Motorola DOCSIS1 modem $66.94 a month. For that kind of money the crap should work.

After the 1st outage last week I got a ConCrap e-mail saying your speed has been increased to 4,000/384 which is bullcrap. That is a burstable speed that they can only maintain for a few seconds or so it seems.

Unfortunately, my only alternative is Ameritech's SBC-Yahoo DSL, which is a cobbled together ATM network with terrible latency, ever try a loaded ping? use control + c to stop the test,

ping xxx.com -f -l 1024 -t
Reply from xxx.109.xxx.135: bytes=1024 time=30ms TTL=51

Looking good right now but then it is 6 AM.

I was able to communicate with all of my servers using their IP addresses. I guess it is time to make favorite links to other critical sites using their IP namespace instead of the human readable blabla.com addresses.

»www.couponsworth.com Buy something I need money to pay my cable bill HAHA
bhowells
join:1999-12-27
Salem, OR

bhowells

Member

Level3 DNS

I could maybe dredge up the post (and I'm pretty sure it's not here - was on nanog, I think) but there's lots of good magic happening behind the Level3 DNS IPs; as someone else posted earlier, clueful DNS engineers are not a mass-market commodity. Level3 definitely has more than their quota.

Comcast's demonstrated that they can't run DNS as a production capability. If I felt like wasting some time, I'd go after them on a lost-connectivity basis; if they can't provide me DNS, bandwidth doesn't matter. (Presuming, of course, that I/we don't go poach someone else's servers...)
falchion6
join:2005-04-20
Derry, NH

falchion6

Member

Re: Level3 DNS

Make it easy on yourself and check out »DynDNS.org as they just started a new Recursive DNS that is working really well. And it's a good company for other stuff as well.
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