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Ports!

Port Numbers and Uses

NamePortUse
DHCP UDP 67 and UDP 68 assigns IP address
DNS Port 53 resolves domain names to IP
FTP TCP 20 and TCP 21 transfer files
HTTP TCP 80 web servers
HTTPS TCP 443 secure web servers
IMAP TCP 143 retrieves emails
IMAP over SSL TCP 993 retrieves emails securely
LDAP TCP 389 directory services
LDAPS TCP 636 secure directory services
MGCP Port 2427 communication for VoIP
MySQL TCP 3306 database
NTP UDP 123 synchronize clocks
POP3 TCP 110 retrieves emails
POP3 over SSL TCP 995 retrieves emails securely
RDP Port 3389 remote desktop
SFTP TCP 22 secure file transfer
SIP Ports 5060 and 5061 manages sessions
SMB TCP 445 share network resources
SMTP TCP 25 sends emails
SMTP TLS TCP 465 sends emails securely
SNMP UDP 161 and UDP 162 manage network devices
SSH TCP 22 connects to a remote host securely
SQLnet TCP 1521 remote database
SQL server Port 1433 search databases
Syslog UDP 514 logs system info
Telnet TCP 23 unsecure remote host
TFTP UDP 69 transfers files
Created by: PlaceholderAlex
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