Ports Flashcards
(38 cards)
21 TCP
FTP
File Transfer Protocol is used to transfer files from host to host
22 TCP/UDP
SSH
Secure Shell is used to remotely administer network devices and systems
22 TCP/UDP
SCP is used for secure copy
22 TCP/UDP
SFTP for secure FTP
23 TCP/UDP
Telnet
Unencrypted method to remotely administer network devices (should not be used)
25 TCP
SMTP
Simple Mail Transfer Protocol is used to send email over the Internet
53 TCP/UDP
DNS
Domain Name Service is used to resolve hostnames to IPs and IPs to hostnames
69 UDP
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
80 TCP
HTTP
Hyper Text Transfer Protocol is used to transmit web page data to a client for unsecured web browsing
88 TCP/UDP
Kerberos
Used for network authentication using a system of tickets within a Windows domain
110 TCP
POP3
Post Office Protocol v3 is used to receive email from a mail server
110 TCP
POP3
Post Office Protocol v3 is used to receive email from a mail server
119 TCP
NNTP
Network News Transfer Protocol is used to transport Usenet articles
135 TCP/UDP
RPC/DCOMscm
Remote Procedure Call is used to locate DCOM ports request a service from a program on another computer on the network
137-139 TCP/UDP
NetBIOS
NetBIOS is used to conduct name querying, sending of data, and other functions over a NetBIOS connection
143 TCP
IMAP
Internet Message Access Protocol is used to receive email from a mail server with more features than POP3
161 UDP
SNMP
Simple Network Management Protocol is used to remotely monitor network devices
162 TCP/UDP
SNMPTRAP
Used to send Trap and InformRequests to the SNMP Manager on a network
389 TCP/UDP
LDAP
Lightweight Directory Access Protocol is used to maintain directories of users and other objects
443 TCP
HTTPS
Hyper Text Transfer Protocol Secure is used to transmit web page data to a client over an SSL/TLS-encrypted connection
445 TCP
SMB
Server Message Block is used to provide shared access to files and other resources on a network
465/587 TCP
SMTP with SSL/TLS
Simple Mail Transfer Protocol used to send email over the Internet with an SSL and TLS secured connection
514 UDP
Syslog
Syslog is used to conduct computer message logging, especially for routers and firewall logs
636 TCP/UDP
LDAP SSL/TLS
LDAP is used to maintain directories of users and other objects over an encrypted SSL/TLS connection