Common TCP & UDP Ports Flashcards
(34 cards)
20
FTP-DATA
File Transfer protocol - data
21
FTP - file transfer protocol - control
22
SSH/SFTP
Secure shell/FTP over SSH
23
Telnet
Telnet (client-server protocol predating TCP)
25
SMTP
simple mail transfer protocol
53
DNS
Domain name system
67
BOOTPS (Bootstrap Protocol)
BOOTPS/DHCP server
68
BOOTPS (Bootstrap Protocol)
BOOTPS/DHCP Client
69
TFTP
trivial file transfer protocol
80
HTTP
Hypertext Transfer Protocol
110
POP3
post office protocol
123
NTP/SNTP
Network time protocol/simple NTP
143
IMAP
Internet message access protocol
161
SNMP simple Network management protocol (management uses it to conduct polling)
162
SNMP
simple Network management protocol (when agent sends information to manager)
389
LDAP
lightweight directory access protocol
443
HTTPS
HTTP-secure (secure sockets layer (SSL)/transport layer security (TLS)
445
SMB
server message block over TCP/IP
514
SYSLOG
Syslog
546
DHCPV6-CLIENT
DHCPv6 Client
547
DHCPv6- SERVER
DHCPv6 Server
587
SMTPS
SMTP-secure
636
LDAPS
LDAP- secure
993
IMAPS
IMAP-Secure
