FTP
File Transfer Protocol is used to transfer files from host to host
SSH, SCP, SFTP
Secure Shell is used to remotely administer network devices and systems. SCP is used for
secure copy and SFTP for secure FTP.
Diameter
A more advanced AAA protocol that is a replacement for RADIUS
Syslog over TLS
It is used to conduct computer message logging, especially for routers and firewall logs, over
a TLS-encrypted connection
RDP
Remote Desktop Protocol is used to remotely view and control other Windows systems via a
Graphical User Interface
iSCSI Target
iSCSI Target is as the listening port for iSCSI-targeted devices when linking data storage
facilities over IP
FCIP
Fibre Channel IP is used to encapsulate Fibre Channel frames within TCP/IP packets
Telnet
Unencrypted method to remotely administer network devices using a terminal
SMTP
Simple Mail Transfer Protocol is used to send email over the Internet
DNS
Domain Name Service is used to resolve hostnames to IPs and IPs to hostnames
TFTP
Trivial FTP is used as a simplified version of FTP to put a file on a remote host, or get a file
from a remote host
HTTP
Hyper Text Transfer Protocol is used to transmit web page data to a client for unsecured web
browsing
RADIUS
Remote Authentication Dial-In User Service is used for authentication and authorization
(1812) and accounting (1813)
RADIUS(alt)
Remote Authentication Dial-In User Service is used for authentication and authorization
(1645) and accounting (1646)
PPTP
Point-to-Point Tunneling Protocol is an underlying VPN protocol with built-in security
L2TP
Layer 2 Tunnel Protocol is used as an underlying VPN protocol but has no inherent security
Kerberos
Used for network authentication using a system of tickets within a Windows domain
POP3
Post Office Protocol v3 is used to receive email from a mail server
NNTP
Network News Transfer Protocol is used to transport Usenet articles
RPC/DCOM- scm
Remote Procedure Call is used to located DCOM ports request a service from a program on another computer on the network
NetBIOS
NetBIOS is used to conduct name querying, sending of data, and other functions over a
NetBIOS connection
IMAP
Internet Message Access Protocol is used to receive email from a mail server with more
features than POP3
SNMP
Simple Network Management Protocol is used to remotely monitor network devices
SNMPTRAP
Used to send Trap and InformRequests to the SNMP Manager on a network
ISCSI
iSCSI is used for linking data storage facilities over IP
IMAP4 with SSL/TLS
Internet Message Access Protocol is used to receive email from a mail server over an SSL/TLS-
encrypted connection
FTPS
File Transfer Protocol Secure is used to transfer files from host to host over an encrypted
connection