Important Acronyms Chapter 7 Flashcards
ping
sends echo requests to determine if communication is possible.
command: ping [optional] name/address
netstat
It is used for finding problems in the network and to determine the amount of traffic as a performance measurement. usable on windows or linux
command:
netstat -a | lists all active ports/connections
netstat -at | lists all active TCP connections
netstat -an | lists all active UDP connections
tracert
Windows command for tracing the route that packets take over the network in order from source to destination. Provides the list of hosts, switches and routers in the order that a packets passes by them. Uses ICMP. Linux command is traceroute
nslookup/dig
To examine a DNS query for a specific address, you can use nslookup. dig command is for Linux.
DNS
Domain Name System - Used to convert a name into an IP address
arp & rarp
Address Resolution Protocol and Reverse ARP. Layer 2/MAC address finder.
ipconfig
A command-line tool to manipulate network interfaces.
It lists interfaces and connections,
alters connections
refresh/renew connections
Linux is ifconfig
tcpdump
designed to analyze network packets either from a network connection or a recorded file. You can create files of packet captures called pcap files and use it to filer input/output to make life easier on other tools.
nmap
Utility designed to map a network
netcat
Network utility for Linux but also ported to Windows. Reads and writes to TCP or UDP connections. Designed for scripts and automation but provides a wide array of functions.
nc -help
nc -options
nc -address
Protocol Analyzer
Examines packets
Network Scanner
Examines ports and maps networks
Vulnerability Scanner
Searches for vulnerabilities in applications and networks
