Port numbers Flashcards
1
Q
SSH
A
TCP/22
1
Q
FTP
A
TCP/20 (active mode data)
TCP/21 (controls data transfers)
2
Q
Telnet
A
TCP/23
3
Q
SMTP
A
TCP/25
4
Q
POP3 (post office protocol version 3)
A
TCP/110
5
Q
IMAP 4
A
Internet message access protocol version 4
TCP/143
6
Q
DNS
A
UDP/53
7
Q
DHCP
A
UDP 67/68
8
Q
HTTP
A
TCP 80
9
Q
HTTPS
A
TCP/443
10
Q
POP3 (Post Office Protocol 3)
A
TCP/110
11
Q
Network Basic Input/Output System
(NETBIOS)
A
UDP/137
12
Q
NetBIOS over TCP/IP
(NetBT)
A
TCP/139
13
Q
SNMP
(Simple Network Management Protocol)
A
Queries: udp/161
* Queries devices for performance details
Traps: udp/162
* Monitors certain metrics and if it exceeds the metrics, it can alert the server
14
Q
LDAP
Lightweight Directory Access Protocol
A
Port 389 TCP/UDP
