Want to know what port is what? here is a list i’ve made just for that! in red is for webserver use.

Port Number      Description
1     —TCP Port Service Multiplexer (TCPMUX)
5    — Remote Job Entry (RJE)
7    — ECHO
18    — Message Send Protocol (MSP)
20    — FTP — Data
21    — FTP — Control
22    — SSH Remote Login Protocol
23    — Telnet
25     –Simple Mail Transfer Protocol (SMTP)
29    — MSG ICP
37    – -Time
42     –Host Name Server (Nameserv)
43     –WhoIs
49    — Login Host Protocol (Login)
53    — Domain Name System (DNS)
69     –Trivial File Transfer Protocol (TFTP)
70     –Gopher Services
79     –Finger
80    — HTTP
103     –X.400 Standard
108     –SNA Gateway Access Server
109     –POP2
110     –POP3
115     –Simple File Transfer Protocol (SFTP)
118     –SQL Services
119    — Newsgroup (NNTP)
137     –NetBIOS Name Service
139    — NetBIOS Datagram Service
143     –Interim Mail Access Protocol (IMAP)
150     –NetBIOS Session Service
156     –SQL Server
161     –SNMP
179     —Border Gateway Protocol (BGP)
190    — Gateway Access Control Protocol (GACP)
194     –Internet Relay Chat (IRC)
197     –Directory Location Service (DLS)
389     –Lightweight Directory Access Protocol (LDAP)
396     –Novell Netware over IP
443     –HTTPS
444     –Simple Network Paging Protocol (SNPP)
445     –Microsoft-DS
458     –Apple QuickTime
546     –DHCP Client
547     –DHCP Server
563     –SNEWS
569     –MSN
1080    – Socks