Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Domain problem.

Posted on 2006-06-12
21
Medium Priority
?
265 Views
Last Modified: 2010-03-31
Hi experts,
  I'm trying to acsess a cookie created for domain ".xyz" in another domain ".abc". Is it possible. If yes or if no can you provide any location/url where I can get complete information about this issue.

Also I want the specification for identifing a valid domain name,
like is ".abc" a valid domain name only ,"com", ".edu" etc. are the only valid domain names. It would be great if you can provide any link or url where I can get the complete information.

Karan
0
Comment
Question by:Manish
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 9
  • 7
  • 5
21 Comments
 
LVL 35

Accepted Solution

by:
TimYates earned 195 total points
ID: 16884006
Not possible...

Cookies are private to the domain that created them...

For obvious reasons :-)

Tim
0
 
LVL 11

Author Comment

by:Manish
ID: 16884048
What about valid domain name q?
0
 
LVL 30

Assisted Solution

by:Mayank S
Mayank S earned 105 total points
ID: 16884061
http://support.rapidsystem.net/ntfaq/r80.html says "The rules are 67 characters including the extension (e.g. .com, .net, .org, etc.). The domain name without the extension can be up to 63 characters. Only 0-9, a-z and the dash "-" are valid characters. The domain name cannot start or end with a dash."

http://www.digitaldaze.com/servers/support/help/dns_valid.html

http://www.shauninman.com/plete/2006/05/validating-domain-names

probably this is the most comprehensive one:

http://www.101domain.com/domain_help_faq_19.htm
0
Build and deliver software with DevOps

A digital transformation requires faster time to market, shorter software development lifecycles, and the ability to adapt rapidly to changing customer demands. DevOps provides the solution.

 
LVL 35

Expert Comment

by:TimYates
ID: 16884062
http://www.shauninman.com/plete/2006/05/validating-domain-names

Someone there also brings up the very valid point that this will block IP addresses, which may not be satisfactory :-(

Tim
0
 
LVL 35

Expert Comment

by:TimYates
ID: 16884065
...bah ;-)
0
 
LVL 30

Expert Comment

by:Mayank S
ID: 16884068
He he.... no problemo (like Arnold in Terminator 2)
0
 
LVL 11

Author Comment

by:Manish
ID: 16891929
Is Cookie formed by
     http://abc.us.xyz website accessible to
     http://mno.ca.xyz ?
If yes , how?
If no,  then what to do?

In above URL what is domain? is it .us.xyz or .xyz?
What makes valid domain extention?
0
 
LVL 30

Expert Comment

by:Mayank S
ID: 16891975
No, it should not be accessible.

For domain extension, I don't think there are any rules other than what I posted above.
0
 
LVL 35

Expert Comment

by:TimYates
ID: 16892131
>> If no,  then what to do?

What are you trying to do?  Share data between websites?
0
 
LVL 11

Author Comment

by:Manish
ID: 16892230
>>What are you trying to do?  Share data between websites?
Yes, cookie data.
0
 
LVL 35

Expert Comment

by:TimYates
ID: 16892241
So you're trying to read cookie data from someone elses website?

You can't :-(

If both websites belong to you, then you may be able to do some sort of message passing between them to tie users together and share user data that way, but you can't just read cookies written by other sites...

It would be a huge security hole if you could...

Tim
0
 
LVL 11

Author Comment

by:Manish
ID: 16892272
Ya Tim,
  Your second point is correct ,
What kind of message do I need to pass ?
0
 
LVL 30

Expert Comment

by:Mayank S
ID: 16892304
It could be through a web-service or simply an HTTP post that you can send to a web-site:

http://www.javaalmanac.com/egs/java.net/Post.html 
0
 
LVL 35

Expert Comment

by:TimYates
ID: 16892333
If you have a single user database, then it will become easier, as user id credentials will be the same on both sites...
0
 
LVL 11

Author Comment

by:Manish
ID: 16892339
Didnt get your point?
0
 
LVL 35

Expert Comment

by:TimYates
ID: 16892377
Can you explain properly what data it is you're trying to share?

We're shooting in the dark with suggestions otherwise
0
 
LVL 11

Author Comment

by:Manish
ID: 16892602
My application is accessible through more than one domain. Domains are region specific, region most of the time are locale. Earlier my application was creating cookies which were accessible by that domain only eg ".ab.pqrs". Now I want the cookies generated in ".ab.pqrs" to be accessible by another domain ".ed.pqrs". From the above discussion it is clear that one cookie of one domain is not accessible by another domain. But my requirements are such that I want alternative for it.
Cookie basically contains information related to user preferences for the user who logged in like country, locale, few numbers used by application, etc.
I want to know how can I do this?
0
 
LVL 35

Expert Comment

by:TimYates
ID: 16892628
why not store these preferences in a database shared between the webapps?

Then when a user logs in, the cookie can just store their session id, and their preferences can be loaded from the database, no matter which site they log in to...

Tim
0
 
LVL 11

Author Comment

by:Manish
ID: 16893088
In my case I can't store in Database. It should be handled throughs cookies only.
0
 
LVL 30

Expert Comment

by:Mayank S
ID: 16893135
It should be handled as request parameters then, I guess.
0
 
LVL 35

Expert Comment

by:TimYates
ID: 16893139
>> It should be handled throughs cookies only.

The problem is, it can't be
0

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this post we will learn how to connect and configure Android Device (Smartphone etc.) with Android Studio. After that we will run a simple Hello World Program.
Basic understanding on "OO- Object Orientation" is needed for designing a logical solution to solve a problem. Basic OOAD is a prerequisite for a coder to ensure that they follow the basic design of OO. This would help developers to understand the b…
Viewers learn about the third conditional statement “else if” and use it in an example program. Then additional information about conditional statements is provided, covering the topic thoroughly. Viewers learn about the third conditional statement …
Viewers will learn how to properly install Eclipse with the necessary JDK, and will take a look at an introductory Java program. Download Eclipse installation zip file: Extract files from zip file: Download and install JDK 8: Open Eclipse and …

715 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question