Home
Calendar
Certifications
Columns
Features
Forum
Resources
Vitals
Latest Additions
April 2013 Free Giveaway Sponsor - eLearnSecurity
Human Intelligence to Navigate the Security Data Deluge
February 2013 Free Giveaway Winner of SANS CyberCon Training
Interview: Bugcrowd Founders on Herding Ninjas for Crowdsourced Bug Bounties
Network Forensics: The Tree in the Forest
March 2013 Free Giveaway Sponsor - Mile2
Book Review: Violent Python
February 2013 Free Giveaway Sponsor - SANS
Holiday 2012 Free Giveaway Winner of Metasploit Pro by Rapid7
Course Review: SANS FOR408 Computer Forensic Investigations – Windows In-Depth
The Security Consulting Sugar High
Tutorial: Fun with SMB on the Command Line
Interview: Ilia Kolochenko, CEO of High-Tech Bridge
October 2012 Free Giveaway Winner of LearningGate Training
The Broken: Assessing Corporate Security in 2012 to Make a Better 2013
EH-Net Login
Welcome Guest.
Username:
Password:
Remember me
Lost Password?
No account yet?
Register
Who's Online
We have 46 guests online
You are here:
Home
Ethical Hacking Discussions and Related Certifications
Network Pen Testing
OS Fingerprinting using ICMP - AFCEH Question
EH-Net
May 25, 2013, 04:16:27 AM
Welcome,
Guest
. Please
login
or
register
.
Did you miss your
activation email?
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
News
: Go back to The Ethical Hacker Network Online Magazine
Home Page
Home
Help
Calendar
Login
Register
EH-Net
>
Ethical Hacking Discussions and Related Certifications
>
Network Pen Testing
(Moderator:
don
) >
OS Fingerprinting using ICMP - AFCEH Question
Pages: [
1
]
Go Down
« previous
next »
Print
Author
Topic: OS Fingerprinting using ICMP - AFCEH Question (Read 6072 times)
0 Members and 1 Guest are viewing this topic.
Manu Zacharia (-M-)
Sr. Member
Offline
Posts: 393
c0c0n Hacking Conference - where hackers unite
OS Fingerprinting using ICMP - AFCEH Question
«
on:
July 07, 2006, 12:51:17 PM »
Hi Friends,
I am posting more questions that I have faced during my AFCEH course. Please discuss the same. The next question is:
Quote
In the OS Fingerprinting technique of using Ping and Traceroute, what is the mathematical calculation that one needs to perform?
1. Final TTL Value + Number of Hops
2. Final TTL Value + Number of Hops - 1
3. Final TTL Value + Number of Hops - Round Trip Time
4. Initial TTL Value + Number of Hops
5. Initial TTL Value + Number of Hops + Round Trip Time
Regards,
The Morpheus
Logged
Manu Zacharia
MVP (Enterprise Security), ISLA-2010 (ISC)², C|EH, C|HFI, CCNA, MCP,
Certified ISO 27001:2005 Lead Auditor
There are 3 roads to spoil; women, gambling & hacking. The most pleasant with women, the quickest with gambling, but the surest is hacking - c0c0n
Dengar13
Sr. Member
Offline
Posts: 380
Re: OS Fingerprinting using ICMP - AFCEH Question
«
Reply #1 on:
July 07, 2006, 02:10:36 PM »
Are we here to pass this for you? Do you have any idea what the answer is or are you relying solely on us?
Logged
A+, Net+, MCP, CEH
MCSE: Security/Messaging
MCSA: Security/Messaging
Former U.S. Marine and damn proud of it!
Manu Zacharia (-M-)
Sr. Member
Offline
Posts: 393
c0c0n Hacking Conference - where hackers unite
Re: OS Fingerprinting using ICMP - AFCEH Question
«
Reply #2 on:
July 07, 2006, 09:18:31 PM »
Hi Dengar and fellow friends,
If my frequent postings of questions have hurted any of the fellow members, I am extremely sorry for the same. My aim was to share the questions (especially the tricky questions) with the fellow forum members as it would be opening up new thinking dimensions for all wanna-be ethical hackers. If I did anything wrong, moderators - please point out the same.
Regarding the answers, as per the book Network Security - A Hacker's Perspective, it is given that the Initial TTL value of a data packet = Final TTL value of the packet + Number of routers in the path.
However, in the question it is not asking for the Initial TTL value, it is asking for just the mathematical calculation. So I think, the answer is (2). Since there are two options for the answer, I consider it as a tricky one and wanted to share it with the rest of the forum. If you or anybody felt that I have some other intentions, sorry for the same.
Regards,
The Morpheus
Logged
Manu Zacharia
MVP (Enterprise Security), ISLA-2010 (ISC)², C|EH, C|HFI, CCNA, MCP,
Certified ISO 27001:2005 Lead Auditor
There are 3 roads to spoil; women, gambling & hacking. The most pleasant with women, the quickest with gambling, but the surest is hacking - c0c0n
pcsneaker
Jr. Member
Offline
Posts: 73
Re: OS Fingerprinting using ICMP - AFCEH Question
«
Reply #3 on:
July 08, 2006, 04:48:32 AM »
Quote
Regarding the answers, as per the book Network Security - A Hacker's Perspective, it is given that the Initial TTL value of a data packet = Final TTL value of the packet + Number of routers in the path.
Quote
So I think, the answer is (2)
Quote
2. Final TTL Value + Number of Hops - 1
Just read what you have posted and review your math...
Logged
MCSA:Security (W2k, W2k3)
MCSE:Security (W2k, W2k3)
CPTS, Network+
Pages: [
1
]
Go Up
Print
« previous
next »
Jump to:
Please select a destination:
-----------------------------
EH-Net
-----------------------------
=> Calendar Of Events
===> ChicagoCon 2007
===> ChicagoCon 2008s
===> ChicagoCon 2008f
===> ChicagoCon 2009s
=> Ethical Hacktivism
=> News Items and General Discussion About EH-Net
===> Greetings
=> Special Events
-----------------------------
Ethical Hacking Discussions and Related Certifications
-----------------------------
=> General Certification
===> Networking
===> OS
===> Security
=> Compliance, Regulations & Standards
=> Control Systems
=> Cyber Warfare
=> Forensics
===> CCE / MCCE - (Master) Certified Computer Examiner
===> CHFI - Computer Hacking Forensic Investigator
===> EnCE - EnCase® Certified Examiner
===> GCFA - GIAC Certified Forensics Analyst
=> Hardware
=> Incident Response
===> CSIH - Computer Security Incident Handler
===> GCIH - GIAC Certified Incident Handler
=> Malware
===> Advisories
=> Mobile
=> Network Pen Testing
===> CEH - Certified Ethical Hacker
===> CPTC - Certified Penetration Testing Consultant
===> CPTE - Certified Penetration Testing Engineer
===> CSTA - Certified Security Testing Associate
===> eCPPT - eLearnSecurity Certified Professional Penetration Tester
===> ECSA - EC-Council Certified Security Analyst
===> GPEN - GIAC Certified Penetration Tester
===> OSCP - Offensive Security Certified Professional
=> Physical Security
=> Programming
=> Social Engineering
=> Web Applications
=> Wireless
===> CWNP Certs
===> GAWN - GIAC Assessing Wireless Networks
===> OSWP - Offensive Security Wireless Professional
=> Other
-----------------------------
Columns
-----------------------------
=> Editor-In-Chief
=> Andress
=> Gates
=> Haddix
=> Hadnagy
=> Heffner
=> Hoffman
=> Linn
=> RichM
=> Murray
=> J. Peltier
=> Weidman
=> Wilson
-----------------------------
Features
-----------------------------
=> /root
=> Book Reviews
=> Opinions
=> Skillz
===> Examples
===> May 06 - Star Hacks, Episode V: The Empire Hacks Back
===> July 06 - Hack Bill!
===> Sept 06 - Netcat in the Hat
===> Nov 06 - Hitch-Hackers Guide to the Galaxy
===> Dec 06 - A Christmas (Hacking) Story
===> Feb 07 - Charlottes Web Site
===> April 07 - Microsoft Office Space
===> June 07 - Serenity Hack
===> Oct 07 - Worst. Ethical. Hacker. Challenge. Ever.
===> Dec 07 - Frosty the Snow Crash
===> March 2008 - It Happened One Friday
===> Oct 2008 - Scooby Doo and the Crypto Caper
===> Dec 08 - Santa Claus Is Hacking to Town
===> Feb 2009 - Brady Bunch Boondoggle
===> July 2009 - Prison Break
===> October 2009 - SSHliders
===> December 2009 - Miracle on Thirty-Hack Street
===> December 2010 - The Nightmare Before Charlie Browns Christmas
-----------------------------
Resources
-----------------------------
=> Career Central
===> Looking For Work
===> Looking To Hire
=> Links to cool sites.
=> Mass Media
=> News from the Outside World
=> Tools
=> Tutorials
===> Tutorial Requests
Loading...
Exclusive Deal
SANSFIRE 2013
June 15 - 22
5% Off
w/ Code
:
EHN_5
SANS Deals 4 EH-Netters
5% OFF
Any
SANS Course
in Any Format!
Coupon Code:
EHN_5
Including
SANS Rocky Mountain 2013
&
SANS Boston 2013
Polls
Compared to this year, 2013 will be:
Great!
Better.
About the same.
Little worse.
FUBAR!
Recent Forum Topics
News Items and General Discussion About EH-Net
: Change is Coming to EH-Net!!
(30) by
don
Tools
: Symbolic Exploit Assistant project is looking for collaborators
(0) by
galapag0
Greetings
: Hi from the UK
(5) by
prats84
GCIH - GIAC Certified Incident Handler
: Passed my GCIH
(9) by
prats84
Network Pen Testing
: Want a challenge? Want a GXPN practice exam?
(0) by
ajohnson
GCIH - GIAC Certified Incident Handler
: GCIH Free Practice test attempt
(1) by
prats84
EH-Net News Feeds
Latest Additions
Privacy Notice
for TDCC & All Properties
© 2013 The Ethical Hacker Network
Joomla!
is Free Software released under the GNU/GPL License.
News Items and General Discussion About EH-Net : Change is Coming to EH-Net!!
