CompTIA exam study guide presentations by instructor Brian Ferrill, PACE-IT (Progressive, Accelerated Certifications for Employment in Information Technology) "Funded by the Department of Labor, Employment and Training Administration, Grant #TC-23745-12-60-A-53" Learn more about the PACE-IT Online program: www.edcc.edu/pace-it

1. Introduction to
command line for
networking.

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Instructor, PACE-IT Program – Edmonds Community College
Areas of Expertise Industry Certifications
 PC Hardware
 Network Administration
 IT Project Management
 Network Design
 User Training
 IT Troubleshooting
Qualifications Summary
Education
 M.B.A., IT Management, Western Governor’s University
 B.S., IT Security, Western Governor’s University
Entrepreneur, executive leader, and proven manger
with 10+ years of experience turning complex issues
into efficient and effective solutions.
Strengths include developing and mentoring diverse
workforces, improving processes, analyzing
business needs and creating the solutions
required— with a focus on technology.

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– Command line tools.
– Networking command line utilities.
PACE-IT

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Introduction to command line for networking.

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– Command line tools.
» A utility or set of utilities that is accessed from the command
line interrupter (CLI).
» Usually accessed from the desktop, but not always.
– How to access via Windows Vista or
Windows 7.
» Left click the Start button.
» Type “cmd” or “command” in the search box and press the
return key.
– How to Access via Windows XP.
» Left click the Start button.
» Left click on Run.
» Type “cmd” or “command” in the run box and press the return
key.
Introduction to command line for networking.

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Introduction to command line for networking.

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– ping.
» Can be used to check for TCP/IP stack initialization.
» Checks for basic connectivity.
» Uses ICMP echo requests.
» Basic command format:
• You can ping XXX.XXX.XXX.XXX (the dotted decimal
IP address).
• You can also ping www.google.com (the human friendly
address).
» The behavior of ping can be modified; once in ping, type
“/?” to find modifiers.
Introduction to command line for networking.

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– tracert.
» Microsoft implementation (traceroute = Unix, Linux, and
OS X).
» Traces the route between two nodes.
» Uses ICMP requests.
» Logs responses from routers.
» The utility has limited usability, as many routers block
ICMP requests.
» Basic command format:
• You can tracert XXX.XXX.XXX to find the route to a
destination.
• You can also use a human friendly address (e.g.,
www.google.com) with tracert to find the route.
» The behavior of tracert can be modified; once in tracert,
type “/?” to get a list of available modifiers.
Introduction to command line for networking.

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– netstat.
» Used to list all inbound and outbound TCP/IP connections on a
given node.
» Useful in determining which connections are consuming
network resources.
– net.
» Most common use is to map a remote shared drive or resource
to the current node.
• Example: C:net use Z //bob.jones/shared.doc.
» Has other great uses: Do a Google search for “Windows 7
password recovery” to find them.
– nslookup.
» Used to query DNS (Domain Name System) to determine if a
record exists.
» Troubleshoots DNS issues.
Introduction to command line for networking.

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Introduction to command line for networking.
nbtstat.
Used to troubleshoot
NetBios over TCP/IP.
Similar to arp, only with NetBios
(NetBios is the human friendly name
given to nodes in a Microsoft
networking environment).
ipconfig.
Used to list the IP
configuration on a node.
A powerful tool, especially when
used with ping and tracert.
arp.
Address resolution
protocol utility.
Used to resolve IP addresses to
MAC addresses. Use arp as a
command to resolve arp table issus.

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Introduction to command line for networking.
A utility or set of utilities that is accessed from the command prompt in the
command line interpreter (CLI).
Topic
Command line tools.
Summary
There are a number of command line utilities that can be used to assist with
networking, including ping, tracert, netstat, net, nslookup, nbtstat, ipconfig,
and arp. All commands can be modified by a “/” followed by the desired
modifier (e.g., C:>ping /a).
Networking command line
utilities.

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THANK YOU!

13. This workforce solution was 100 percent funded by a $3 million grant awarded by the
U.S. Department of Labor's Employment and Training Administration. The solution was
created by the grantee and does not necessarily reflect the official position of the U.S.
Department of Labor. The Department of Labor makes no guarantees, warranties, or
assurances of any kind, express or implied, with respect to such information, including
any information on linked sites and including, but not limited to, accuracy of the
information or its completeness, timeliness, usefulness, adequacy, continued availability
or ownership. Funded by the Department of Labor, Employment and Training
Administration, Grant #TC-23745-12-60-A-53.
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