Ports and Protocols Flashcards
1
Q
FTP data port (active mode)
A
TCP 20
2
Q
FTP control Port
A
TCP 21
3
Q
SSH
A
TCP 22
4
Q
SCP (uses SSH)
A
TCP 22
5
Q
SFTP (uses SSH)
A
TCP 22
6
Q
Telnet
A
TCP 23
7
Q
SMTP
A
TCP 25
8
Q
TACACS+
A
TCP 49
9
Q
DNS name queries
A
UDP 53
10
Q
DNS zone transfers
A
TCP 53
11
Q
TFTP
A
UDP 69
12
Q
HTTP
A
TCP 80
13
Q
Kerberos
A
UDP 88
14
Q
POP3
A
TCP 110
15
Q
SNMP
A
UDP 162
16
Q
SNMP Trap
A
UDP 162
17
Q
NetBIOS (TCP rarely used)
A
TCP/UDP 137
18
Q
NetBIOS
A
UDP 138
19
Q
NetBIOS
A
TCP 139
20
Q
IMAP4
A
TCP 143
21
Q
LDAP
A
TCP 389
22
Q
HTTPS
A
TCP 443
23
Q
SMTP SSL/TLS
A
TCP 465
24
Q
IPsec (for VPN with IKE)
A
UDP 500
25
Q
LDAP/ SSL
A
TCP 636
26
Q
LDAP/TLS
A
TCP 636
27
Q
IMAP SSL/TLS
A
TCP 993
28
Q
POP SSL/TLS
A
TCP 995
29
Q
L2TP
A
UDP 1701
30
Q
PPTP
A
TCP 1723
31
Q
Remote Desktop Protocol (RDP)
A
TCP/UDP 3389
32
Q
Microsoft SQL Server
A
TCP 1433
