Ports Flashcards
Port 21: FTP
TCP, (file transfer protocol)
Used to transfer files from host to host
Port 22: SSH, scp, SFTP
TCP:
Secure remote terminal access and file transfer capabilities
Secure copy functions
Secure file transfers
Port 23 Telnet
TCP:
Provides insecure remote control of another machine using text based environments
Port 25: SMTP
TCP: Simple Mail Transfer Protocol
Send emails over network
Port 53: DNS
TCP/udp: Domain Name System
Translate domain names to IP addresses
Port 69 TFTP
UDP, Trivial File Transfer Protocol
Lightweight file transfer method for sending configuration files or network booting of an OS
Port 80 http
TCP Hypertext transfer protocol
Insecure web browsing
Port 88 Kerberos
UDP
Network authentication protocol
Port 110 POP3
TCP Post office protocol V3
Retrieving email from server
Port 119 NNTP
TCP Network news transfer protocol
Accessing newsgroups
Port 135 rpc
TCP/udp: remote procedure call
Facilitates communication between different system processes
Port 137, 138, 139: netBIOS
TCP/ udp
Network protocol suite
Port 143 IMAP
TCP internet message access protocol
allow access to email messages on a server
port 161 smp
udp simple network management protocol
manage network devices
port 162 snmp trap
udp
sending snmp trap messages
port 389 ldap
lightweight directory added protocol. tcp
facilitates directory services
port 443 https
tcp http secure
provides secure web communication
port 445 smb
tcp server message block
file and printer sharing over a network
port 465 and 587 smtps
tcp smtp secure
secure smtp communication
port 514 syslog
udp.
used for sending log messages
port 636 ldap secure
tcp
ldap communication over ssl/tls that is encrypted
port 993 imaps
tcp: internet message access protocol over ssl/tls
secure email retrieval
port 995 pop3s
tcp: pop3 over ssl/tls
used for secure email retrieval
port 1433 microsoft sql
tcp
facilitate communication with microsoft sql server
port 1645, 1646 radius
tcp: tcp version of radius
remote authentication, authorization and accounting
port 1812, 1813 radius udp
udp: radius udp
authentication, authorization and accounting as defined by the internet engineering task force (IETF)
port 3389 rdp
tcp: remote desktop protocol
remote desktop access
port 6514 syslog tls
tcp:
secure syslog that uses ssl/tsl to encrypt the ip packets using a certificate before sending them across the ip network to the syslog collector
