Screen-friendly page
Printer-friendly pageSpecial Ports for Mostly Open and Mostly Closed Categories
This page contains information about ports that are treated differently than the group norm in the "Mostly Open" and "Mostly Closed" campus firewall plans.
Ports permitted with Mostly Closed (and Remote Administration)
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 SSH, SFTP Secure text & file transfer 22 Telnet Text transfer 23 Mail (SMTP) Email transfer 25 HTTP Web pages 80 POP3 Email transfer 110 IMAP Email transfer 143 HTTPS Secure web pages 443 H.323 Remote access (including LDAP and other services) 389
522
1503
1719
1720
1731Secure POP, Secure IMAP Secure email transfer 993
995Note: 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 RDP Windows remote desktop 3389 VNC Apple remote desktop 5900 WBEM HTTP Apple remote desktop 5988 NoRM Netware remote management 8009 Alternative HTTP Web server 8080
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