|
Home > Archive > CCNA > January 2001 > Free book offer ( IP Telephony)
You are viewing an archived Text-only version of the thread.
To view this thread in it's original format and/or if you want to reply to
this thread please [click here]
| Author |
Free book offer ( IP Telephony)
|
|
|
|
|
|
|
| The links don't seem to be working. Although, if you only type in the IP, the hotmail page comes up. What's up with this? | |
|
| When you receive a link in a Hotmail message, it gets routed through a redirect link...
If you strip off the hotmail header, you're left with the following, working, link:
http://www.cisco.com/offer/iptgameplan/V691-100-EX
Pretty neat, huh? 
Cheers,
Skip | |
|
| Hey thanks skipster,
I would'nt want you folks thinking I was dropping bad links on ya.
cheerio.
beenframed | |
|
| Hi guys.
Okay, Skipster...I gotta ask! I can see how you extracted the link, but what are is the stuff like %2f for? And is the word action the redirector?
beenframed,
After rereading my post, it presents itself like I was being an @ss with the "What's up with this?". Sorry if it came off that way, I should have typed something like, "Whoa...that's weird that Hotmail is giving away Cisco books." (I don't understand the redirector thing yet)
Anyway...thanks for the great link! I took the test, filled out a questionaire and the book is on it's way! Thankyou very much!
 | |
|
| Ok... A quick lesson in URL reverse-engineering!
1) "http://64.4.43.7/cgi-bin/linkrd" is the address of the redirector script at Hotmail
2) "?" marks the start of the query string being submitted along with the redirect request.
3) "_lang=EN" means Language=English
4) "&" is the parameter separator
5) " lah=a2e15dcd8750b28d5ea2944c59
cfdc9a" I have no idea, except that it must be an internal token of some kind used for authentication
6) "lat=980643998" again, some kind of internal token
7) "hm___action" the action the redirector is supposted to take, identifying the link to redirect to
8) "http%3a%2f%2f" is simply the URL-encoded form of "http://" (the ":" became a %3a since that is the hex representation of the ASCII value for ":". Similarly, each "/" became a %2f.
9) "www%2ecisco%2ecom" is nothing more than "www.cisco.com" where each "." was translated into %2e, it's hex ASCII value
10) "%2foffer%2fiptgameplan%2f" is "/offer/iptgameplan/" because %2f represents a "/"
11) "V691%2d100%2dEX" is "V691-100-EX" because %2d represents "-"
Since the redirect link includes tokens that only allow the owner of the mailbox to access the link, we simply bypass the redirector entirely, un-URL-encode the argument that contains the encoded URL at cisco.com, and bingo, we have our fully functional stand-alone URL: http://www.cisco.com/offer/iptgameplan/V691-100-EX
Cheers,
Skip | |
|
| Whoa! So that's what it's all about. Thanks for the time, Skipster! | |
|
| My pleasure, firechicken!
Cheers,
Skip |
|
|
|
|