N10-009 Ports

FTP - File Transfer Protocol. Generic method of file transfer.

TCP Port 20 (data) TCP port 21 (Control)

SSH - Secure Shell. Encrypted communication link to access remote device.

TCP port 22

SFTP - Secure FTP. Generic file transfer with security/encrypt.

TCP port 22 (uses SSH)

Telnet - insecure, obsolete method of connection

TCP port 23

SMTP - Simple Mail Transfer Protocol.Server to server mail transfer. Send only.

Port 25 (plaintext)

DNS - Domain Name System.

UDP port 53 (small queries) TCP port 53 (large queries)

DHCP - Dynamic Host Configuration Protocol.

UDP port 67 (server) and 68 (client)

TFTP - Trivial FIle Transfer Protocol. Transfer minimal amount of info quickly. Download config files Also IP phones.

UDP port 69

HTTP - Hypertext Transfer Protocol.

TCP port 80

HTTPS - Hypertext Transfer Protocol Secure. Uses TLS (more secure) and SSL

TCP port 443 (Encrypted)

NTP - Network Time Protocol. Synchronizes clocks of computers of a network.

UDP port 123

SNMP - Simple Network Mgmt Protocol. Gather stats from network devices.

UDP port 161

LDAP - Lightweight Directory Access Protocol. Store and retrieve info in a network directory

TCP port 389

SMTPS - Simple Mail Transfer Protocol Secure.

TCP port 587

LDAPS (Lightweight Directory Access Protocol Secure)

TCP port 636 (SSL)

SMB - Server Message Block. Windows proprietary file sharing.

TCP port 445

Syslog - used to config and manage system logs from network devices

UDP port 514

SQL Server - standard comm. to and from SQL server, Aka Microsoft SQL

TCP port 1433

RDP - Remote Desktop Protocol. Microsoft protocol for remote connections to other computers, primarily Windows

TCP port 3389

SIP - Session Initiation protocol. Control protocol for IP phone. Extended comms.

UDP 5060 and or TCP 5061 (TLS)

MySQL - facilitates comm. between MySQL clients and servers

TCP port 3306

IMAP - Internet Message Access Protocol.

TCP port 143

IMAPS - IMAP over SSL/TLS

TCP port 993