blocking dynamic IP add

[rahulkothari]

if my IP address is dynamic , then how does a site block me ? (block in the sense, .... for ex - if u reg once on freeservers u arent able to do it again from the same computer)

...or rather wat the four octects stand for in an IP address will reveal the answer.

i think i read something related to this topic here on pcguide but cant recollect it.

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An eye for an eye makes the whole world blind.
-Mahatma Gandhi

[YODA74]

The static numbers, the ones that won't ever change, are 216.188.. The other numbers, known as dynamic, will change each time I reconnect with my IP. So, if I'm online for hours, without disconnecting, responding to different posts, signing guestbooks, going into chat rooms, all will have the exact same series of numbers until I log off. If someone wants to make a complaint about something I've done while on the internet, my provider will be able to tell it's me, from the complete series of numbers. It would be extremely difficult, close to impossible, for someone to have the same exact number on their post that I have on mine (unless using an anonymizing service or AOL; multiple users can and do have the same number, so you can't blame one person for all posts with the same anonymized IP number). These numbers are almost impossible to fake.

So I guess your IP would be on there servers and that is the record they would go by, like what ixl has here at the bottom of your post it say " IP:logged " GH is probobly more familiar with the inner workings of this Hopefuly he'll stop in and correct this.

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YODA74@windows-sucks.com
CCMR (http://www.dreamwater.net/tech/yoda74/index.html)

[Ghost_Hacker]

Yoda has the basic idea down. A site can block based on part of your IP address. Your ip address contains a network address and a host address. With a Dynamic IP the network address remains the same and only the host part changes. To find out what your network address is take a look at your subnet mask. The subnet mask tells the computer what network it belongs to, so that it can tell when it must forward a packet to it's default gateway or if a remote computer is on the same network as it.

The subnet mask will look something like this 255.255.255.0. Each "255" tells you that the same "octlet" in your IP address is part of your network address. So if your IP is 222.222.222.1 then 222.222.222.0 is your network address. This is a simply mask, some subnet masks might look like this 255.255.255.192. In this case the last octlet of the subnet and your IP address must be converted into binary first. Because only part of the last octlet makes up the network address and the rest is the host address. By converting into binary and "masking" out the correct binary "places" you get the last octlet of the network address.


Now no web site will block based on a network address. (some email servers will however because of the amount of spam that comes from China and other places.)Because if they did they would cut off more than just one user. So they can either block based on the whole IP address, host name or by placing a cookie on your computer. As you can see it's easy to get around a block if you know how it's done and you have the right enviroment.


IXL logs ip address proably not so much for blocking, but so he can trace a fellow/gal back to their "lair" if they prove to be causing too much trouble. An ISP will know which account was using an ip address even if you have a dynamic one. So as long as a person is willing to talk to as many upstream ISPs as it takes, they can always find their badguy. That logged IP is IXL's starting point.



[This message has been edited by Ghost_Hacker (edited 05-18-2002).]

[rahulkothari]

thx for the explanation.


GH: So they can either block based on the whole IP address, host name or by placing a cookie on your computer.


when i first reg with freeservers.com , i had a dial-up connection(dynamic ip) but now i have a permanent cable conn(static ip) , so they cant block me on the basis of my ip / host ....

also, i cleared the 'cookies' and 'temp internet files' folder and also the index.dat file, but then too the situation is still the same....

so wats the way out ? thx for the explanation.


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An eye for an eye makes the whole world blind.
-Mahatma Gandhi

[Ghost_Hacker]

, i had a dial-up connection(dynamic ip) but now i have a permanent cable conn(static ip) , so they cant block me on the basis of my ip / host ....


Sorry, but they can.


so wats the way out ?

You can only avoid a block if you have the right enviroment.( ie: you can change your IP address by logging out and then back in again. Or by using a different dail-in phone number which changes your ip and host name) However, It is impossible to avoid an ISP's block because they control your "web surfing" enviroment. (IE: they always know who you are or where you are logging in from. This is why script-kiddie hackers always get caught. They think they can fool an ISP.) You could also try to use someone else's account (the favorite trick of Level 2 script kiddies http://www.PCGuide.com/ubb/smile.gif ) but this defeats your goal I would think and might not work anyway.

Remember it is their network after all and they've designed it to manage their users however they see fit. To defeat that you would need to be able to hack thier system and take control of your enviroment.


Sorry, but without knowing exactly what your trying to do, I would say your proably out of luck on this one.


[This message has been edited by Ghost_Hacker (edited 05-22-2002).]

[rahulkothari]

GH: Sorry, but without knowing exactly what your trying to do, I would say your proably out of luck on this one.


just trying to register more than one site on freeservers.com ... thats it.

hey is it considered unethical or something of dat sort to reg more than one free site (on the same freeservers)..... ofcourse i want to reg one more site for an altogether different purpose than the previous one.

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An eye for an eye makes the whole world blind.
-Mahatma Gandhi

[Ghost_Hacker]

Oh...I see this is just a free web hosting company.

After reading their "Acceptable Use Policy " I found this:

"c. Each user is requested to take only one account. Multiple accounts may be taken, but only if each site contains completely different subject matter."


So you should be able to have as many "domains" as you wish. I can see no means for blockage unless they block based on the account information you supply to them when you setup the web space. If that's the case there might be some sort of waiting period or review to make sure that the "site contains completely different subject matter".


I would have to try it in order to get more details on how the system works




[This message has been edited by Ghost_Hacker (edited 05-22-2002).]

[rahulkothari]

After reading their "Acceptable Use Policy "


i should have done that myself. anyways thx.

... and hey .. i also tried to reg on freeservers from a cybercafe few months back , but it didnt help either (maybe the same "waiting time" problem, as some1 else might have used the same pc for reg on freeservers)


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An eye for an eye makes the whole world blind.
-Mahatma Gandhi

[Ghost_Hacker]

That could be it.

You might also want to use a different email addresses when you sign up for the web space. (if your not doing that already) Could be they restrict accesses based on that.

Anyway, good luck http://www.PCGuide.com/ubb/smile.gif

[rahulkothari]

Anyway, good luck http://www.PCGuide.com/ubb/smile.gif


i think yor "good luck" reallyyyyyy helped. http://www.PCGuide.com/ubb/wink.gif

i managed to reg on freeservers.com with the same email-id and from the same computer. http://www.PCGuide.com/ubb/cool.gif

i suppose the problem was due to "waiting time" ... and hey, i forgot to tell u dat i tried to reg last month http://www.PCGuide.com/ubb/tongue.gif and i was soooo fed up dat i never tried registering b4 posting my query here. http://www.PCGuide.com/ubb/biggrin.gif

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An eye for an eye makes the whole world blind.
-Mahatma Gandhi