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A+ Core I > Command Line Tools > Flashcards

Command Line Tools Flashcards

1
Q

ipconfig

A

Displays current TCP/IP
network configuration values

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2
Q

ipconfig /all

A

View additional configuration information, such as DNS servers and MAC addresses

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3
Q

ipconfig /renew

A

Renew IP address
-computers ip address not working properly and you want to obtain new address from DHCP server

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4
Q

ipconfig /release

A

Release current IP address
-computers ip address not working properly and you want to obtain new address from DHCP server

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5
Q

ipconfig/flushdns

A

Erase DNS cache
-problems connecting to websites

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6
Q

Ping

A

Tests whether another host is available over the network-check if another host is “alive”
Ex: ping 192.168.0.1

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7
Q

Ping 127.0.0.1

A

Test whether TCP/IP installed properly, even if not wired to the network
IPv4
Also use ping loopback or ping localhost adding -4

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8
Q

Ping ::1

A

Ping for IPv6
Also use ping loopback or ping localhost adding -6

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9
Q

ping -t

A

Pings host until command is stopped
Plug and unplug cables to see which cables or ports are live
Monitor a connection over time to check packet drops and connection slowing

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10
Q

ping -n

A

Pings a host a specific number of times
Good baseline tool, run every day against a router or server and compare results
Ping -n 20 192.168.0.1

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11
Q

ping -l

A

Pings the host, but you can specify the number of bytes per packet to be sent
Beneficial when testing how a server, router or other device reacts to larger packet sizes
ping -1 1500 192.168.0.1

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12
Q

ping -a

A

Resolves addresses to hostnames, see hostname associated with IP address

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13
Q

ping -4

A

Forces use of IPv4 and results in IPv4-based data
ping -4 loopback results in reply from 127.0.0.1

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14
Q

ping -6

A

Forces use of IPv6 and results in IPv6-based data
ping -6 loopback will result in a reply from ::1

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15
Q

tracert

A

Sends packets to destinations beyond the local computer’s network. Pings each router along the way between you and the final destination

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16
Q

tracert /d

A

Does not resolve IP addresses to hostnames, shown as corresponding IP addresses only.
Connecting by IP address will always be faster than connecting by name

17
Q

hostname

A

Displays the name of the local computer
Programmatically referred to as the %COMPUTERNAME% variable in any windows system

18
Q

netstat

A

Shows network statistics for the local computer
Default command displays sessions to remote computers
Output:
Active connections
TCP %COMPUTERNAME% :1395 8.15.228.165: https ESTABLISHED

19
Q

Netstat -n
Netstat -a
Netstat -an
Natsrat -nab

A

-See information numerically
-See TCP and UDP sessions
-See TCP and UDP in numeric format
-Include the executable name for each session shown

20
Q

nslookup

A

name server lookup
Queries DNS servers to discover DNS details, including the IP addresses of hosts
Can aid in finding DNS servers and DNS records in a domain

21
Q

dig

A

Linux equivalent of nslookup
Queries DNS servers to discover DNS details, including the IP addresses of hosts
Can aid in finding DNS servers and DNS records in a domain

22
Q

net

A

Actually a collection of commands

23
Q

net stop

A

Stop a service

24
Q

net start

A

Start a service from command line

25
Q

net view

A

See which computers are currently available on the network

26
Q

net share

A

Share folders for other users to view

27
Q

net use

A

View any currently mapped network drives
net use x: \computername\sharename

28
Q

net user

A

Lists user accounts on the local computer
Create accounts from here using net user/add %username%

29
Q

net user/active

A

Activate user accounts

30
Q

net user /delete

A

Delete user accounts

31
Q

arp

A

Address Resolution Protocol
Resolves between IP addresses and MAC addresses so data communications can flow from the OS to the physical network adapter

A+ Core I (2 decks)

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