http ======> port 80 (Hyper Text Transfer Protocol)
ftp-data ==> port 20 (File Transfer Protocol - Default Data)
ftp =======> port 21 (File Transfer Protocol - Control)
POP3 ======> port 110 (Post Office Protocol version 3)
SMTP ======> port 25 (Simple Mail Transfer Protocol)
NNTP ======> port 119 (Network News Transfer Protocol)
telnet ====> port 23 (Telnet)
Gopher ====> port 70 (Gopher)
IRC =======> port 194 (Internet Relay Chat)
Proxy =====> port 80/8080/3128 (Proxy)
Socks =====> port 1080 (Socks)
DNS =======> port 53 (Domain Name Server)
hostname ==> port 101 (NIC Host Name Server)
finger ====> port 79 (Finger)
nicname ===> port 43 (Who Is)
login =====> port 49 (Login Host Protocol)
HTTPS =====> port 443 (https MCom)
imap3 =====> port 220 (Interactive Mail Access Protocol v3)
NetBIOS ===> port 137 138 139 (NetBIOS)
NFS =======> port 2049 (Network File Service)
SNMP ======> port 161 (Simple Network Management Protocol)
snmptrap ==> port 162 (SNMP TRAP)
TFTP ======> port 69 (Trivial File Transfer)
sqlserv ===> port 118 (SQL Services)
uucp-path => port 117 (UUCP Path Service)
X Window ==> port 6000 6001 (X Window System)