Troubleshooting Tools Flashcards

1
Q

ipconfig

A
View and Manage IP configuration
/all = display all details
/release = release DHCP lease
/renew = renew DHCP lease
/flushdns = flush the DNS resolver cache
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2
Q

netstat

A

Display network statistics

  • a = show all active connections
  • b = show binaries
  • n = do not resolve names
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3
Q

ifconfig

A

View and manage IP configuration

linux interface configuration

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4
Q

ping
ping6
ping -6

A
test reachability
test reachability to TCP/IP address
-t = ping until stopped with Ctrl c
-a = resolve address to hostname
-n  = send # of echo requests
-f = send with don't fragment flag set
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5
Q

tracert

tracert -6

A

pings every router hop from the source to the destination and reports the round time trip for every router hop

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6
Q

nbtstat

A

Query NetBIOS over TCP/IP information

  • n = list local NetBIOS names
  • A = list remote NetBios names
  • a = list remote NetBIOS names
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7
Q

nslookup / dig

A

look up information from DNS servers

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8
Q

arp

A

Address Resolution protocol information

- a = view the local ARP table

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9
Q

pathping

A

combination of ping and traceroute

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10
Q

multimeter

A

AC/DC voltages
continuity
wire mapping
fuse status

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11
Q

cable tester

A

can identify missing pins or crossed wires

not generally used for frequency testing

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12
Q

toner probe

A

puts an analog sound on the wire
inductive probe doesnt need to touch the copper
easy to use
different connectors

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13
Q

speed test sites

A

bandwidth testing
provide useful pre and post change analysis
measure at different times
not all sites are the same

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14
Q

looking glass sites

A

view routing table configurations

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15
Q

protocol analyzer

A

capture and display network traffic

use a physical tap or redirect on the switch

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