J!NX Forums
J!NX Forums
Home | Forum Home | Profile | Register | Active Topics | Members | Search | FAQ
Username:
Password:
This username differs from J!NX login...
Save Password
Forgot your Password?

 All Forums
 TechSpeak
 Newbies Here
 dial up access and modem ???
 New Topic  Reply to Topic
 Printer Friendly
Author Previous Topic Topic Next Topic  

hackedX99
Omega Member

628 Posts

Posted - 10/28/2009 :  10:00:04 PM  Show Profile  Reply with Quote
Ok first is it better to buy your own cable/dsl modems or lease them from a provider. I heard they factor in leasing fees on your monthly internet bill. Wondering if you bought your own modem would this take off of the price per month of internet thru comcast , charter ,..etc

Or is this just BS and the only difference is that you can reuse your modem with a different ISP if you up for change. (which would probably be once in a blue moon if not never )

As for my Main dial up access question
Once the dialup modems such as V.92 make a handshake and exchange their configurations (i.e tx speed rx speed baud rate ,...etc )
Then the modem must authenticate once authenticated if has internet access. My question is is the authentication in plain txt? If so then if somebody just viewed the modem log they would see the user id and password? And should beable to dial into that provider with another computer by using that password/user id and the isp dialup phonenumber?

I know after the dot.com crash their was hardly any free dialup isp providers. Do they have any free ones left?

Last but not least my modem is using com3 port so if I write data to that port will it send this data out the modem to a dialup isp.
If that is true then it won't take much work to start throwing passwords/user ids at $4 or so dialup isp. Who knows maybe I will get in

Also if the com3 port idea works then maybe I can use it to get the audio to go thru the sound card speakers and mic input to go to the modem??? Just a thought.

Edited by - hackedX99 on 10/28/2009 10:05:24 PM

dualdflipflop
Moderator

USA
7368 Posts

Posted - 10/28/2009 :  11:46:14 PM  Show Profile  Visit dualdflipflop's Homepage  Send dualdflipflop an AOL message  Click to see dualdflipflop's MSN Messenger address  Send dualdflipflop a Yahoo! Message  Reply with Quote
Man, am I the only one willing to answer these hackedX99 questions or what?

quote:
Originally posted by hackedX99

Ok first is it better to buy your own cable/dsl modems or lease them from a provider.
Depends on the company, and service contract.

quote:
Originally posted by hackedX99

Or is this just BS and the only difference is that you can reuse your modem with a different ISP if you up for change. (which would probably be once in a blue moon if not never )
Most locations have one provider for that area. You're locked in, unless you do the moving.

quote:
Originally posted by hackedX99

As for my Main dial up access question
Once the dialup modems such as V.92 make a handshake and exchange their configurations (i.e tx speed rx speed baud rate ,...etc )
Then the modem must authenticate once authenticated if has internet access. My question is is the authentication in plain txt? If so then if somebody just viewed the modem log they would see the user id and password? And should beable to dial into that provider with another computer by using that password/user id and the isp dialup phonenumber?
Where are they going to read the log from if it was in plain text? Are you thinking somebody might sniff the line? I do know you can have a dial-up ISP filter what phone numbers you can log in from. I use to have that set up, but got sick of the calls from times when I'd have to use my service from pay phones using my acoustic coupler. Had to give shout outs to my acoustic coupler at some point.

quote:
Originally posted by hackedX99

I know after the dot.com crash their was hardly any free dialup isp providers. Do they have any free ones left?
You mean Netzero is not free anymore? Awe man... *wink*

There's still a few free DUN ISPs out there, but you have to look hard, and put up with some stupid BS probably. Don't get scammed... they're notorious for scamming. That's why I generate my own PPP forwarding. IP masquerading use to be hard core stuff, but now it's seriously easy. Actually, my favorite ad-hoc dial-up is by using the old UFO Airport from Apple. Those took two seconds to set up, and done.

quote:
Originally posted by hackedX99

Last but not least my modem is using com3 port so if I write data to that port will it send this data out the modem to a dialup isp.
If that is true then it won't take much work to start throwing passwords/user ids at $4 or so dialup isp. Who knows maybe I will get in

Also if the com3 port idea works then maybe I can use it to get the audio to go thru the sound card speakers and mic input to go to the modem??? Just a thought.

This is where I come off as arrogant (but at least I'm warning you)... It's hard for me to accept that most people learning about computers these days have never needed to use serial ports to communicate with another computer.

You can use Hyperterm, or in Linux minicom to send all kinds of data to any serial device. Whether the serial device on the other side knows what to do with it or not is another question.

Bruteforcing a dial-up access... that's so 1994. Don't do it, it'll flag the ISP and the phone company, and you may get in serious crap. Even back in the days when hacker zines listed all the numbers and login/passwords to ISPs the writer never bruteforced crap. It's so much easier to social engineer that crap in the long run. These days, nobody has dial-up to scam off of.


P.S. This is what part of the alphabet would look like with Q and R eliminated.
Go to Top of Page

hackedX99
Omega Member

628 Posts

Posted - 10/29/2009 :  01:48:39 AM  Show Profile  Reply with Quote
acoustic coupler those are cool wish I had one. Maybe the internet would be faster and mre reliable

Take a look at this movie clip

http://www.dvorak.org/blog/2009/05/31/demo-300-baud-acoustic-coupler-modem-connects-to-internet-surfs-wikipedia/
Go to Top of Page

dualdflipflop
Moderator

USA
7368 Posts

Posted - 10/29/2009 :  04:15:27 AM  Show Profile  Visit dualdflipflop's Homepage  Send dualdflipflop an AOL message  Click to see dualdflipflop's MSN Messenger address  Send dualdflipflop a Yahoo! Message  Reply with Quote
Saw that fine device at Defcon.


P.S. This is what part of the alphabet would look like with Q and R eliminated.
Go to Top of Page

Ozzy_98
Advanced Member

Toot toot!
7667 Posts

Posted - 10/29/2009 :  05:30:59 AM  Show Profile  Visit Ozzy_98's Homepage  Send Ozzy_98 a Yahoo! Message  Reply with Quote
quote:
Originally posted by dualdflipflop

Man, am I the only one willing to answer these hackedX99 questions or what?
Hexed and I play with him sometimes.

A lot of arcades still use cuplers. The machines keep audits of usage, coins, ect. Many of the scanners that pull these logs are also modems\cuplers, so you can upload the logs to the home office. Kinda funny, cause most phones don't work with cuplers anymore; they just don't fit.

www.rhwiii.info
hexed hates ponies and supports internet censorship!
Go to Top of Page

dualdflipflop
Moderator

USA
7368 Posts

Posted - 10/29/2009 :  4:20:00 PM  Show Profile  Visit dualdflipflop's Homepage  Send dualdflipflop an AOL message  Click to see dualdflipflop's MSN Messenger address  Send dualdflipflop a Yahoo! Message  Reply with Quote
I agree with old school couplers not being compatible with new phones. That's why I got mine. It fits to just about every corded handset phone I've put it to. Obviously phones with dinky mouthpieces don't work, like those generic offices phones (screw you Nortel!).

I'd like to see that arcade coupler in action.


P.S. This is what part of the alphabet would look like with Q and R eliminated.
Go to Top of Page

hackedX99
Omega Member

628 Posts

Posted - 10/29/2009 :  4:30:07 PM  Show Profile  Reply with Quote
Acoustic Couplers

Is it possible to make one out of speaker and microphone by just holding it up to the telephones speaker / mic?

Or is their some built in circuit that needs to be taken into consideration. Maybe an audio card cann't sample that fast or modulate the sound correctly for data???

Would be nice if their was a simple Acoustic circuit I could built to make my own that could take a hold of a computers sound card.

Seems like it should be possible and not to much circuitary.

I am wondering also what the main use of Acoustic Couplers where for
Seems they had them way before internet , arpnet ,...etc
Was their another purpose for them? Maybe they where predominantly used for coke machines , arcades ,...etc to get the tone of each denomination ,....etc. But even arcades didn't come out before them so I still don't see the many purpose maybe it was for radio/telegraph/telephone applications duno?

Acoustic Couplers I would like to think of as sound modems.
mechanical waves like sound used to modulate EM waves.

Anyway the problem with using mechanical waves is they need a median to propagate. EM doesn't

Cool stuff though

Edited by - hackedX99 on 10/29/2009 4:39:49 PM
Go to Top of Page

dualdflipflop
Moderator

USA
7368 Posts

Posted - 10/29/2009 :  7:30:11 PM  Show Profile  Visit dualdflipflop's Homepage  Send dualdflipflop an AOL message  Click to see dualdflipflop's MSN Messenger address  Send dualdflipflop a Yahoo! Message  Reply with Quote
From Wikipedia: A modem would modulate a loudspeaker in the cup attached to the handset's microphone, and sound from the loudspeaker in the telephone handset's earpiece would be picked up by a microphone in the cup attached to the earpiece.

In other words, the acoustic coupler component alone requires a modem. It's not a sound card attachment.

Also from Wikipedia: In many households, telephones were hard-wired to wall terminals before connectors like RJ11 and BS 6312 became standardized... Interconnection of outside phones or other terminal equipment to the telephone system was not allowed.

That means people had to use an acoustic couplers to connect sound signals rather than through direct electrical connection, because it was simply not allowed.

Anymore Wikipedia answerable questions?


P.S. This is what part of the alphabet would look like with Q and R eliminated.
Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Reply to Topic
 Printer Friendly
Jump To:
J!NX Forums © J!NX and Snitz Go To Top Of Page
Snitz Forums 2000