Broadband: Broadband: Is my cable connection becoming saturated?
- 10/2/09 10:18 AM
Search 'hack WPA2-PSK'
by studmoose - 10/4/09 8:13 AM In reply to: WPA2-PSK has never been cracked... by JCitizenThere are dozens of video HowTo's on how to do it.
Any poorly configured security can be cracked...
by JCitizen - 10/4/09 1:45 PM In reply to: Search 'hack WPA2-PSK' by studmooseI'm talking about the encryption. If you have a poorly configured security and/or a weak passphrase to the key, then yes, you might be able to extract it from a special sniffer and use highspeed computing to crack the key.
The goal is to put a good key in that would keep the bad guys guessing for a couple of years. There are also web-sites that you can test your password to the key, to see how long it would take to crack using the best current technology.
As far as WPA2 this site is a good example:
http://forums.macrumors.com/showthread.php?t=429524
Member parrotheadmjb had this to say:
"I hate to say it, but im pretty confident that this is fake, i tested (under the presumption it was fake) and it generated the same key as the one in the video, not only was the key the same, but EVERY LINE in terminal was the same that appeared in the video. even if it did "crack" the packet and gave you this "key" it would be useless since you have to inject packets into the router to hack a wep encryption, the ipod touch does not have the hardware, or ability to perform the required injection, rendering this useless. I still have no idea why someone would go through the trouble of writing a fake script to run in installer and post a video of it on youtube.
Even if wep was possible, wpa-psk or wpa2-psk would be IMPOSSIBLE to perform on the ipod touch, i have heard people talk about vulnerabilities of tkip in wpa-psk but wether or not you can hack it, is unknown to me, but the cpu, etc required to hack wpa-psk is far more than the touch can provide. wpa2-psk is out of the question, it implements the far more secure AES encryption, your computer cant do it - your touch definitely cant, unless you run a password "cracking" software to use dictionary attacks, brute force, etc."
This is pretty much the case everywhere using other hardware. Now if you have a pretty good passphrase, it would take some heavy duty equipment to crack that, unless your hardware wireless device has a circuit vulnerability. That is not the fault of the encryption protocol, but the wireless device.
I've tested the WPA2-PSK on my clients and it would usually take 11 years to crack the average good paasphrase used by my clients. Now as computing power goes up, the likely hood WPA becomes obsolete, also goes up. But you got to balance this with the fact that some people don't live in crowded areas and would find out the cracker in a heart beat! Plus, the majority of my clients don't have either service or personal information worth going to that much trouble to gain.
Sniff it to see if it smells bad.
by throuwlin - 10/5/09 6:37 AM In reply to: Any poorly configured security can be cracked... by JCitizenWhen I had a cable modem, I had a simular issue. It turns out that there had been an outage in another area and the cable company bridged the two network segments together. When I noticed that my modem activity light was lit most of the time I though "OMG I've been hacked!!!". So I loaded up ethereal"now wire shark" and sniffed the traffic to see what was going into and out of my computer and what ports were being used to do so. To my surprise 80% of the traffic was ARP(Address resolution Protocol) request. There were so many people on the segment that the router could not keep track of where everyone was. so is was constantly asking for addresses. It's like mail call with the letters mixed up. The router will yell out an IP address and computer was yell back here. As you can imagine hat amount of latency this would add if every time the router send you a piece of information it needed to ask where you were first and then wait for a reply.
For sure!..Man those situations can be a mess!....
by JCitizen - 10/5/09 6:15 PM In reply to: Sniff it to see if it smells bad. by throuwlinWire shark is a very valuable pen-test tool.
Broadband speed
by sirpaul1 - 9/18/09 5:07 PM In reply to: Broadband: Is my cable connection becoming saturated? by Lee Koo (ADMIN)
I bet your 'sparsely' populated area is hardly that anymore. Cable broadband is based on a 'hub' theory. The more users on the 'hub', the slower the internet is for everyone.
Sounds like malware to me...
by Doh_1 - 9/18/09 5:08 PM In reply to: Broadband: Is my cable connection becoming saturated? by Lee Koo (ADMIN)
If you're seeing lots of network activity that you can't explain, then I'd guess that one or more computers in your house that are connected to your cable modem most likely has a virus and/or malware running on it. I guess I'd just go through the virus and malware/spyware detection procedures, running antivirus and anti-malware programs on your computers. For example, you could go to eset.com and run their online virus/malware scan, that's a good cross-check for your current antivirus software. There are other online scans that are available as well. There's also various other scans that you can run, I'd look around for the latest in that area. Worst case, you've acquired a rootkit or have multiple viruses and malware and will need to re-install, but that's often not necessary, viruses and malware can be removed usually.
One particular caution though, don't assume that using "system restore" can restore you to a clean system...well-written viruses and malware will also get into your system restore area and contaminate that. If you get to the point where you can't remove the viruses/malware, it's time to think about re-installing, not using system restore. In fact, most of the virus and malware removal toolkits tell you to turn off system restore before proceeding with removing a virus.
-Roger
usability lag
by tedtks - 9/18/09 5:10 PM In reply to: Broadband: Is my cable connection becoming saturated? by Lee Koo (ADMIN)
when Clearwire came to town it was amazeingly fast. we were useing
cable from the cable tv company and had many problems with their modems going out.
its a small town - 22,000. and after a year the signal started to
drop now and then. then it got worse at specific times of the
day. everyday.
they didnt install enough equipment to handle the growth in useage.
I will gladely go back to the tv modem or dsl (if I can get it).
every afternoon after school gets out usage drops to the point of
a simple screen refresh takes 5 min. and fri nights, saturdays, are
slow. the rest of the time its back to lightening speed - almost.
sometimes when it should be clear its not. so I unplug the receiver and the wireless units - count to 20 and plug them back in and the
resetting clears it up pretty good.
Sounds like your computer is now a robot
by willgen - 9/18/09 5:11 PM In reply to: Broadband: Is my cable connection becoming saturated? by Lee Koo (ADMIN)
My best guess is that your computer has become infected with a robot program that is using it to blast either spam, malware, or both, out to the rest of the internet.
Broadband speed #2
by sirpaul1 - 9/18/09 5:13 PM In reply to: Broadband: Is my cable connection becoming saturated? by Lee Koo (ADMIN)
If you're wireless; and not locked down, you may be getting a lot of freeloaders.
remember party lines?
by harryjmorgan - 9/18/09 5:28 PM In reply to: Broadband: Is my cable connection becoming saturated? by Lee Koo (ADMIN)
In fact Steve, YES, your "party line" has grown from when you first hooked up. That has always been the big difference between cable broadband and DSL from the phone company. The more subscribers on the wire from your cable provider, the more bandwidth absorbed or shared by all. In DSL from the phone company, only you are on your line so all of the bandwidth is yours alone, much like the old party lines as opposed to a private line. Think of five, ten or fifteen people sharing as opposed to just one using your PC or printer, that's the effect even if cable says their bandwidth is greater than the phone companies.
BROADBAND CONNECTION
by GEO2003 - 9/18/09 5:53 PM In reply to: Broadband: Is my cable connection becoming saturated? by Lee Koo (ADMIN)
Hello Steve,
Some cable providers will offer you assistance in running a virus/trojan/bot scan if you don't know how.
However, it is very likely that if you call customer service they will first ask you questions such as :
1-Have you try a reset of the Cable Modem.
2-Do you have a Wireless Router connected to the Modem and have you try to reset that to defaults. ( You did not mentioned if you have one on your Post ).
From your post you said that your Son's pc is off, so that means that you are using a different pc/laptop.
A Wireless Router will constantly keep a live connection with your modem.
I think most Wireless Routers now a days have a feature that allows the Router to connect to the manufacturers website to locate updated FirmWare, if your Wireless Router received an automatic upate, it may have created a connection problem between the Router and the Cable Modem.
If you have a Wireless Router and if you are familiar with the settings you might want to try and reset it so that it makes a new connection with the Modem.
The Wireless Router is assigned an IP address from the Cable Modem or ISP if you will, but resetting the Router does not necessarily release the OLD IP address. Going into the Wireless Router Control Panel and Releasing and Renewing the IP address could give you a new connection to the ISP's Servers.
The moral of the story here is - Start with the simple things, such as re-setting the Cable and if you have one - The Wireless Router.
You can download Antimalware programs from Cnet/download or you can go to AVAST.com and download their portable utilities to check your computer for Malware.
I recommend Avast because it is easy to use and very accurate.
And once you have done this few things, you can call your service provider. and won't have to spent a lot of time going through these scenarious with them since you have already checked them off the list.
If they can't help you over the phone - assuming you end up with a connection issue rather then anything else, make an apointment for them to change your Cable Modem.
Regards,
Geo
Speed varies depending the time of use
by uvinod - 10/4/09 12:44 AM In reply to: BROADBAND CONNECTION by GEO2003My optimum online connection used be close to 15 mbps at any time of the day. Recently, the speed goes down to about 5 or 6 mbps en early evening and becomes 14 o 15 mbps late at night.
Dan
re: activity
by grumble - 9/18/09 5:55 PM In reply to: Broadband: Is my cable connection becoming saturated? by Lee Koo (ADMIN)
Could be your PC is infected and is being used to send spam.
Testing your Cable modem upload/download spped
by ralphjramirez - 9/18/09 6:14 PM In reply to: Broadband: Is my cable connection becoming saturated? by Lee Koo (ADMIN)
Before contacting your ISP check the speed of your connection with one of those free online speed checks. I had a problem with slow upload/download spped so I ran that speed checker, and presented this info to my ISP (Comcast). They sent a technician out the next day and found that the modem I had was not capable of handling the higher speeds that Comcast not provides. They swapped out my modem and WOW what a difference. I don't use my PC for gaming but do upload/download large image files that are super fast.
This is the link to the Line speed tester I use:
http://www.speedtest.net/
Hope this helps..............Ralph
http://www.speedtest.net/
by leehemen - 10/3/09 9:44 AM In reply to: Testing your Cable modem upload/download spped by ralphjramirezDO NOT use it! It is a scam, AGAIN, by Uniblue to sell their garbage. If you want to buy it, go ahead but do not think you are getting something for free.
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