Well-known ports

HTTP 80
HTTPS 443
FTP 21 (control) , 20 (data)
SMTP 25
IMAP 143
POP3 110
Telnet 23
SSH 22


MySQLd 3306
Oracle 1521 , 2483
Tomcat 8080
JBoss 8080
IRCd 6667 , 194
SVN 3690 , 3980
Torrent 6881-7000
Rsync 873


LDAP 389
Kerberos 88
OpenVPN 1194
RTMP 3500
RIP 520
RPC 530
SQLServer 1443


NTP 123
Auth 113
epmap 135
NetBIOS 139