Cheatography
https://cheatography.com
command line, cmd, networking
This is a draft cheat sheet. It is a work in progress and is not finished yet.
ipconfig
ipconfig /displaydns |
ipconfig /registerdns |
ipconfig /flushdns |
ping - [cls clears the screen]
ping [name, ip or address]
|
-t |
192.168.1.144 [continuous ping until cease command sent]
|
-n |
10 LT-4151 [for 10 replies]
|
|
192.1681.1.144 [forces the use of IPv6]
|
-l |
|
-f |
[do not fragment packet]
i.e. usage ping -f -l 1300 8.8.8.8
|
| |
errors if receiver MTU is lower than sender
|
tracert [all router hops from sen to rec]
tracert |
|
-d |
|
-h |
|
pathping |
[tracert with a 25 sec ping on each hop]
|
-h |
|
arp [address resolution protocol
arp -a [arp table cached on current host]
|
[static - user or system created]
|
[dynamic - learned from a neighbor]
|
arp -d 192.168.1.1
[deletes this address from apr table]
|
* by default the broadcast MAC is FF:FF:FF:FF:FF:FF
|
arp -s 192.168.1.1 00-AA-22-BB-33-CC [adds entry to arp table]
|
Telnet [test for established TCP session]
|
telnet 104.47.48.36 25 [tests connectivity to email or relay server via port 25]
|
|
telnet google.com 80 tests connectivity to a web server via port 80
|
searched for ats.coop mx record = 104.47.48.36
default port for telnet is 23 but for smtp it is 25
|
|
netstat [assists with port & session issues]
netstat |
[reply provides protocol, local IP:port #, remote host:port # and state of connection
|
-a |
[includes listening ports]
|
-b |
[includes application listening 'in brackets'
|
-o |
[includes process id for listening application
|
| |
a listening port may be "locked" open, blocking other connection attempts
|
| |
if a host listens on 0.0.0.0, it will respond to all requests
|
-n |
[places list in numerical order]
|
-s |
provides statistical information
|
| |
i.e. IPv4, IPv6, TCP, UDP and ICMP information
|
nbtstat
nbtstat |
name resolution via netbios
|
-c |
[displays interface and local netbios cache]
|
-a |
[displays the netbios name table of this host]
|
-s |
|
nslookup
nslookup |
|
|
opens an interactive window allowing other commands i.e.
|
|
|
|
|
route
route print |
route delete 192.168.1.1 |
route add 192.168.1.1 |
* route table should always have the default route of 0.0.0.0 to 10.0.0.2
|
Still Pending
|
pathping |
|
netdiag |
|
hostname |
Other Tools
speedtest.com |
throughput tester |
environmental monitors |
cable certifier |
network sniffer [protocol analyzer] |
cable tester |
BER = bit errors/bits transferred |
bit error rate tester [BERT] t1 |
wireless analyzer |
looking glass sites Board gateway protocol[BGP] |
Microsoft Network Monitor |
|
