Acronym/Ports Flashcards
TLS
Transport layer security
IETF
Internet engineering task force
OSI
Open system interconnection
CA
Certificate authority
HTTP
Hyper text transfer protocol 80 tcp
HTTPS
Hyper text transfer protocol 443 tcp (over tls)
DNS
Domain name service 53 udp (can also use 53 tcp)
TCP
Transmission control protocol (3 way handshake)
UDP
User datagram protocol
NTP
Network time protocol 123 udp
FTP
File transfer protocol 20 tcp (active mode) 21 tcp (control)
SSH
Secure shell 22 tcp
SFTP
Secure file transfer protocol 22 tcp
Telnet
telecommunication network 23 tcp
SMTP
Simple mail transfer protocol 25 tcp (plaintext) 587 tcp (using tls encryption)
DHCP
Dynamic host configuration protocol 67 udp (client to server) 68 (server to client)
TFTP
Trivial file transfer protocol 69 udp
SNMP
Simple network management protocol - get 161 udp / trap 162 udp
LDAP
Lightweight directory access protocol 389 tcp
LDAPS
Lightweight directory access protocol 636 tcp (over ssl)
SSL
Secure sockets layer (outdated use tls)
SMB
Server message block (also called cifs - common internet file system) 445 tcp
Syslog
514 udp
SQL
Structured query language