1
Q
Port 20
A
(TCP) FTP- Data Transfer
2
Q
Port 21
A
(TCP) FTP - Command
3
Q
Port 22
A
(TCP/UDP) SSH, SCP, SFTP
4
Q
Port 23
A
(TCP/UDP) Telnet
5
Q
Port 25
A
(TCP) SMTP
6
Q
Port 53
A
(TCP/UDP) DNS
7
Q
Port 69
A
(UDP) TFTP
8
Q
Port 80
A
(TCP) HTTP
9
Q
Port 88
A
(TCP/UDP) Kerberos
10
Q
Port 110
A
(TCP) POP3
11
Q
Port 119
A
(TCP) NNTP
12
Q
Port 135
A
(TCP/UDP) RPC/DCOM
13
Q
Port 137, 138, 139
A
(TCP/UDP) NetBois
14
Q
Port 143
A
(TCP) IMAP
15
Q
Port 161
A
(TCP) SNMP
16
Q
Port 162
A
(TCP/UDP) SNMPTRAP
17
Q
Port 389
A
(TCP/UDP) LDAP
18
Q
Port 443
A
(TCP) HTTPS
19
Q
Port 445
A
(TCP) SMB
20
Q
Port 465, 587
A
(TCP) SMTP /w SSL/TLS
21
Q
Port 514
A
(UDP) Syslog
22
Q
Port 636
A
(TCP/UDP) LDAP /w SSL/TLS
23
Q
Port 860
A
(TCP) iSCSI
24
Q
Port 989 and 990
A
(TCP) FTPS
25
Port 993
(TCP) IMAP4 /w SSL/TLS
26
Port 995
(TCP) POP3 /w SSL/TLS
27
Port 1733
(TCP) MS-SQL-S
28
Port 1645, 1646
(UDP) RADIUS (ALT)
29
Port 1701
(UDP) L2TP
30
Port 1723
(TCP/UDP) FCIP
31
Port 1812, 1813
(UDP) RADIUS
32
Port 3225
(TCP/UDP) FCIP
33
Port 3260
(TCP) iSCSI listening port
34
Port 3389
(TCP/UDP) RDP
35
Port 3868
(TCP) DIAMETER
36
Port 6514
(TCP) Syslog /w SSL/TLS
Security+
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