Basic Network Commands D315

Ping

*used for troubleshooting network problems

*sends out an ICMP packet to its destination

*waits to see if it gets replied to

*shows latency

Traceroute/Tracert

*show you the path that your data is taking to get to a destination

*shows hops, max of 30 hops

*shows where it stops at

Tracepath

shows the path that it is taking to get somewhere

ipconfig

*Windows command

*shows how your network adapter is configured

*shows IP address, subnet mask, default gateway, MAC address info, DHCO info

ifconfig

Linux command for finding out a computer's IP address information

can change ingo

ARP

*shows other devices on your network and their MAC addresses

*can be used to manually update & modify

Netstat

scans system to show which ports are active or have an active connection

NSlookup

*query DNS server to find out the domain name to IP address mapping

*Windows command

Dig

*Linux command

*queries the DNS server to find out the domain name to IP address mapping

Whois

shows who owns a registered domain

Route

*Windows command

*shows routing table

*consists of different networks that your system has learned and then how it knows how to get to that network

*can modify table

SCP

*Secure Copy Protocol

*tcp/22.

*

Because it uses SSH to communicate it uses the same port.

*Linux

FTP

uses a TCP-based network to pass files from host to host.

*unsecure

TFTP

*Used to transfer small amounts of data with UDP port 69.

Finger

Nmap

scans for open ports.

TCPDump

*packet sniffer

*show you all the network traffic that is passing in and out of your network connection as it is happening

Telnet/SSH

connect to another device remotely