Front | Back |
FTP Data Port
|
20
|
FTP Control Port
|
21
|
SFTP (using SSH)
|
22
|
SSH, SCP
|
22
|
Telnet
|
23
|
SMTP
|
25
|
TACACS/TACACS+
|
49
|
DNS
|
53
|
TFTP
|
69
|
HTTP
|
80
|
Kerberos
|
88
|
POP3
|
110
|
NetBIOS
|
137-139
|
IMAP4
|
143
|
SNMP
|
161
|