Fichas
Protocols NET+ M1
Fichas del conjunto (31)
- 1FTPFile Transfer Protocol
ports 20 (data) and 21 (commands)
active (traditional) or passive (troubleshoot firewall issues)
widely used in shared web environments for uploading new content - 2SSHSecure Shell
port 22
administer computers remotely
usually uses digital certificates for security and authentication - 3SFTPuses SSH to transfer files
- 4Telnetport 23
uses cleartext
remotely control computers using CLI (command-line interface) - 5SMTPsimple mail transfer protocol
port 25
sends emails from one server to another
uses MSA (message submission agent) and MTA (message transfer agent) servers to assist - 6POP3post office protocol v3
TCP port 110
transfers email to device that requested it
does not keep a copy - 7POP3STCP port 995
uses TLS for security
used when an email account is only used on one device - 8IMAPinternet message access protocol
TCP port 143
view email across multiple devices
stored in the cloud
email program needs to be set up to use IMAP - 9IMAPSTCP port 993
uses TLS for security
used when connecting to the same email account from multiple devices - 10DNSdomain name system
TCP/UDP port 53
translates URL into IP address for computer to read - 11DHCPdynamic host configuration protocol
UDP ports 67 and 68
centrally managed and auto-assigned IP configurations to endpoints
DORA (discover, offer, request, acknowledge) - 12TFTPtrivial file transfer protocol
UDP port 69
transfer older BOOTP IP resolution records to endpoints
legacy - 13HTTPhyper text transfer protocol
port 80
HTML pages - 14HTTPSTCP port 443
uses PKI to assign digital certificates - 15NTPnetwork time protocol
UDP 123
synchronize all device's system clocks
clients consume the correct time through NTP servers; Stratum 0 is a reference clock, Stratum 1 is the servers that are between Stratum 0 and clients, Stratum 2 is for organizations to set up their own NTP server - 16SNMPsimple network management protocol
UDP ports 161 and 162
check the health of various devices on a network
stores object identifiers in MIB
uses OI info to send GETs to check status
TRAPS only allow GETs thru when specified threshold is hit - 17LDAPlightweight directory access protocol
TCP/UDP port 389
communicate with a directory
generally used with AD but can be used with Unix-based systems - 18SSLsecure socket layer
legacy to TLS
used in data transfer
handshake and cipher suite conversations are important to know - 19TLStransport layer security
replaced SSL
used in data transfer
SYN, SYN-ACK, ACK
downgrade attacks can be accomplished thru v1.2 but not v1.3 - 20TCPtransmission control protocol
uses 3-way handshake
SYN, SYN-ACK, ACK
header consists of 20 bytes and can be followed by up to 40 bytes of optional additional info - 21TCP Header Bits
- 22UDPquick-hitting communication protocol
normally reserved for audio, video, and gaming
also used by DNS, DHCP, NTP, and more - 23SMBserver message block
TCP port 445
Windows file and printer sharing
shown when using tools such as Nmap and netstat - 24Syslogcentralized logging system that uses its own format
log output: PRI Code (identity priority), source IP, destination IP, and ports - 25LDAPSport 636
industry-standard set of rules to communicate with a directory
centrally manage domains, authenticate, and authorize - 26RDPremote desktop protocol
port 3389
used with Windows
GUI-based interface - 27SIPsession initiation protocol
ports 5060/5061
used in real-time multimedia communications to initiate, secure, and terminate a connection - 28IANAinternet assigned numbers authority
Well-known Ports 0-1023
Register Ports 0124-49151
Dynamic Ports 49152-65535 - 29Well-Known Ports0-1023
most commonly used - 30Register Ports1024-49151
typically used by software programmers
short-term development solution - 31Dynamic Ports49152-65535
used for outbound traffic from the source
short-term connection
Información
- Descripción
- CompTIA (Network +) Information Technology Fichas sobre Protocols NET+ M1, creado por Lyndsay Badding el 13/02/2024.
- Creado por
- Lyndsay Badding
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- 6
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