401
What are the PDUs for layer 4 of the OSI model and what protocols are they associated with?
Segment (TCP), Datagram (UDP)
Port 80
HTTP
A network security system, either hardware or software-based, that uses rules to control incoming and outgoing network traffic.
Firewall
Captures and analyzes network traffic
Software Based Protocol Analyzes
An address that allows end devices to determine which port traffic is supposed to travel through in the system. Separated with a colon.
Socket Address
What port(s) does FTP use?
20 and 21
What are the two most common type of hardware firewalls?
Cisco and Barracuda
CLI packet analyzer; Typically for UNIX/LINIX users
Tcpdump
What are the names of the different port ranges, and what are their numeric values?
Well-known (0-1023), Registered (1024-49151), Dynamic or Private (49152-65535)
What are the three protocols that E-mail utilizes?
POP3 (110), SMTP (25), IMAP4 (993)
The most common software firewall used by the 2600 community?
Windows Firewall
Premier packet analyzer; Free and open source
Wireshark
This process is used to establish TCP connections.
Three-way Handshake
Enables clients on a network to automatically obtain addressing information.
Dynamic Host Configuration Protocol (DHCP)
Used to configure Windows Firewall to log dropped packets or successful connections?
Auditing
What does STP and SPI stand for?
Static Packet Filtering (STP) and Stateful Packet Inspection (SPI)
A function that allows TCP connection to be sent as though they are UDP packets.
IP Acceleration
A device used to scan network port on a local machine and across a network.
Port Scanner
An application type that runs in the system background without a user interface and is similar to a UNIX daemon process.
Services
Where in an IPv4 Header is a fragmented packet "reconstructed?"
Fragment Offset