Networking, Firewall, Special Ports for Mostly Open and Mostly Closed Categories

Traffic on the following ports are permitted to enter a machine in the Mostly Closed firewall category:

Protocol name	Purpose	Port range
FTP	File transfer	21
SFTP	Secure FTP	115
Mail (SMTP)	Email transfer, submission	25,587
HTTP	Web pages	80 and 8080
POP3	Email transfer	110
IMAP	Email transfer	143
HTTPS	Secure web pages	443 and 8443
H.323	Remote access (including LDAP and other services)	389 522 1503 1719 1720 1731
Secure POP, Secure IMAP	Secure email transfer	993 995

Note: Systems placed in the Mostly Closed + Remote Administration firewall group will permit the above ports plus:

Protocol name	Purpose	Port range
SLP	Service Location Protocol	427
SSL SMTP	Secure email transfer	465
NCP	Netware Core Protocol	524
PPTP	Point to point tunneling protocol	1723
NetAssistant	Apple remote desktop	3283
WBEM HTTP	Apple remote desktop	5988
NoRM	Netware remote management	8009

Ports denied with Mostly Open

Traffic on the following ports are not permitted to enter a machine in the Mostly Open firewall category:

Protocol name	Purpose	Port range
Mail (SMTP)	Email transfer	25
DNS	IP information	53
finger	User information	79
HTTP	Web pages	80
NNTP	News	119
SNMP	Network management	161
LDAP	Directory services	389
LPD	Printer	515
HTTPS	Secure web pages	443
NFS	Sun networked file sharing	2049
ICMP	Network control	5813
IRC	Internet chat	6660-6669