Ports And Protocols Flashcards
Port 80
Protocol - HTTP
(Insecure web browsing)
Port 20 and 21
FTP - insecure fill transfer
Port 22
Protocol SSH - secure non GUI remote desktop
Port 23
Protocol Telnet - insecure non GUI remote desktop
Port 25
Protocol SMTP - simple mail transfer - email sending
Port 53
Protocol DNS - Domain Name system - translates IP to URL and vice versa
Port 67, 68
Protocol DHCP - Dynamic Host Configuration Protocol - local service that configured IP, Subnet, and Gateway for devices
Port 69
Protocol TFTP - Trivial File Transfer Protocol - file transfer that is typically used for config changes and upgrades to software and firmware.
Port 110
Protocol POP3 - older protocol used to receive incoming email.
Port 123
Protocol NTP - Network Time Protocol - sync device time with internet time.
Port 137, 138, 139
Protocol NetBios - interconnection of Windows machines.
Port 143
Protocol IMAP - Internet Mail Application Protocol - newer service used for incoming email.
Port 179
Protocol BGP - Border Gateway Protocol - used by ISP to maintain large routing tables
Port 389
Protocol LDAP - Lightweight Directory Access Protocol - provides a mechanism of accessing and maintaining distributed directory info.
Port 443
Protocol HTTPS - Hypertext Transfer Protocol over SSL/TLS - secure connection internet browsing
Port 636
Protocol LDAPS - Lightweight Directory Access Protocol over TLS/SSL - secure LDAP I.e directory services
Port 989,990
Protocol FTP over TLS/SSL - secure FTP
Port 161,162
Protocol SNMP - Simple Network Management Protocol - used for monitoring, configuring, and controlling network devices.
Port 445
Protocol SMB - Server Message Block - used for windows file and print sharing services
Port 514
Protocol Syslog - System Logging Protocol - used to sending login data back to a centralized server
Port 587
Protocol SMTP TLS - Simple Mail Transfer Protocol Transport Layer Security - secure and encrypted version of SMTP
Port 993
Protocol IMAP over SSL - Internet Message Access Protocol over SSL - secure and encrypted version of IMAP.
Port 995
Protocol POP3 over SSL - secure POP3
Port 1433
Protocol SQL - Structured Query Language Server Protocol - used for comms from a client to the database engine
