Port Numbers Flashcards
1
Q
FTP
A
21
TCP
2
Q
SSH, SCP, SFTP
A
22
TCP/UDP
3
Q
Telnet
A
23
TCP/UDP
4
Q
SMTP
A
25
TCP
5
Q
DNS
A
53
TCP/UDP
6
Q
TFTP
A
69
UDP
7
Q
HTTP
A
80
TCP
8
Q
Kerberos (authentication with tickets)
A
88
TCP/UDP
9
Q
POP3
A
110
TCP
10
Q
NNTP (Network News Transfer Protocol)
A
119
TCP
11
Q
RPC/DCOM-scm (Remote Procedure Call locates DCOM ports)
A
135
TCP/UDP
12
Q
NetBIOS
A
137-139
TCP/UDP
13
Q
IMAP
A
143
TCP
14
Q
SNMP
A
161
UDP
15
Q
SNMPTRAP
A
162
TCP/UDP
16
Q
LDAP
A
389
TCP/UDP
17
Q
HTTPS
A
443
TCP
18
Q
SMB
A
445
TCP
19
Q
SMTP with SSL/TLS
A
465/587 TCP
20
Q
Syslog
A
514
UDP
21
Q
LDAP SSL/TLS
A
636
TCP/UDP
22
Q
iSCSI (linking data storage facilities over IP)
A
860
TCP
23
Q
FTPS
A
989/990
TCP
24
Q
IMAP4 with SSL/TLS
A
993 TCP
25
POP3 (SSL/TLS)
995 TCP
26
Ms-sql-s
1433 TCP
27
RADIUS (alternative)
1645/1646 UDP
28
L2TP (Layer 2 Tunnel Protocol - VPN tunnel with no security)
1701 UDP
29
PPTP (VPN protocol with built in security)
1723 TCP/UDP
30
RADIUS
1812/1813 UDP
31
FCIP (Fibre Channel IP)
3225 TCP/UDP
32
iSCSI Target
3260 TCP
33
RDP
3389 TCP/UDP
34
Diameter (replacement for RADIUS)
3868 TCP
35
Syslog of TLS
6514 TCP
