Blocked Ports

In an effort to further secure the Western network, we are continually shutting down access to potentially sensitive network ports.

Ports 1-1023 are blocked with the following exceptions:

20 - ftp-data

21 - ftp

22 - ssh

25 - smtp

27 - ssh-preferred

53 - domain

69 - tftp

80 - http

109 - pop2

110 - pop3

123 - ntp

143 - imap

220 - imap3

389 - ldap

443 - https

444 - snpp

465 - smtps

500 - isakmp

548 - isakmp

548 - afpovertcp

554 - rtsp

587 - submission

636 - ldaps

993 - imaps

995 - pop3s

The following applications are blocked:

Direct Internet access to desktop systems inside Western's network through desktop sharing services is not supported, other than through the use of Western's centrally provided VPN service WROAMS.  The list below is an example (though not a complete list) of remote sharing applications that are blocked, regardless of the ports used.


Remote Desktop Protocol

PCAnywhere

VNC

Teamviewer

Internet Relay Chat (irc)

Splashtop 


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