Using Nslookup to find a hostname

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Using Nslookup to find a hostname

Analyze the sample email header given below. This includes only an IP address.

Return-Path: &..1@hotmail.com>

Received: from murder ([unix socket])

(authenticated user=djmurray bits=0)

by email1.acsu.buffalo.edu (Cyrus v2.2.12-UB_mail1_2005_03_01) with LMTPA;

Thu, 9 Feb 2006 23:21:45 -0500

Delivered-To: d..y@mailspool08.dyn.acsu.buffalo.edu

Received: (qmail 14244 invoked from network); 10 Feb 2006 04:21:45 -0000

Received: from unknown (HELO mailscan5.acsu.buffalo.edu) (128.205.6.137)

by mail1 with SMTP; 10 Feb 2006 04:21:45 -0000

Received: (qmail 19652 invoked by uid 22493); 10 Feb 2006 04:21:45 -0000

Delivered-To: d..y@buffalo.edu

Received: (qmail 19642 invoked from network); 10 Feb 2006 04:21:45 -0000

Received: from bay105-f39.bay105.hotmail.com (HELO hotmail.com) (65.54.224.49)

by front3.acsu.buffalo.edu with SMTP; 10 Feb 2006 04:21:45 -0000

Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC;

Thu, 9 Feb 2006 20:21:44 -0800

Message-ID: &..0@phx.gbl>

Received: from 65.54.224.200 by by105fd.bay105.hotmail.msn.com with HTTP;

Fri, 10 Feb 2006 04:21:44 GMT

X-Originating-IP: [69.163.26.172]

X-Originating-Email: [..1@hotmail.com ]

X-Sender: m..1@hotmail.com

From: "Dave Murray" &..1@hotmail.com>

To: d..y@buffalo.edu

Bcc:

Subject: Check the email header

Date: Thu, 9 Feb 2006 23:21:44 -0500

Mime-Version: 1.0

Content-Type: text/plain; format=flowed

X-OriginalArrivalTime: 10 Feb 2006 04:21:44.0284 (UTC) FILETIME=[53FB91C0:01C631E7]

X-UB-Relay: (bay105-f39.bay105.hotmail.com)

X-PM-Spam-Prob: : 7%

X-DCC-Buffalo.EDU-Metrics: email1.acsu.buffalo.edu 1028; Body=0

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