Port to Protocol Flashcards
1
Q
20 for data
21 for connection/command/control
A
FTP
2
Q
22
A
SSH
SFTP
SCP
3
Q
23
A
Telnet
4
Q
25
A
SMTP
5
Q
49
A
TACACS
6
Q
53
A
DNS
7
Q
67 - destination port of a server
68 - port used by client
A
DHCP
8
Q
69
A
TFTP
9
Q
80
A
HTTP
10
Q
88
A
Kerberos
11
Q
110
A
POP3
12
Q
119
A
NNTP
13
Q
123
A
NTP
14
Q
137-139
A
NetBIOS
15
Q
143
A
IMAP4
16
Q
161
A
SNMP
17
Q
162
A
SNMP Trap
18
Q
389
A
LDAP
19
Q
443
A
HTTPS
SSL VPN
20
Q
500
A
IPsec
21
Q
514
A
Syslog
22
Q
1701
A
L2TP
23
Q
1723
A
PPTP
24
Q
1812 for authentication
1813 for accounting
A
RADIUS
25
3389
RDP
26
135, 137-139, 445
Windows File Sharing
137-139 are also NetBIOS
27
7
Echo - Performs round trip tests between hosts.
28
19
Chargen - Character Generator
29
135
RPC - Remote Procedure Call
30
445
SMB - Server Message Block
31
636
LDAPS - LDAP over SSL/TLS (Secure Lightweight Directory Access Protocol)
32
995
POP3S - POP3 over SSL (encrypted email retrieval)
33
1433
MS-SQL Database
34
6667
IRC - Internet Relay Chat
35
1521
Oracle
36
1720
H.323
37
9100
HP JetDirect Printing
38
135, 137-139, 445
Windows File Sharing
137-139 are also NetBIOS