At Fri Oct 11 14:14:00 2002, McClung, Darren W. wrote:
> 
> This is OT, but pretty important.  If these messenger spams are getting
> through, your NetBIOS ports are open to the outside, which is VERY BAD.
> 
> You need to filter tcp/udp ports 137:139.

This is not adequate.  The university I work at, and others I've seen
reports from, already have those ports filtered (as well as port
445, which is used in Win2k and above for NetBIOS).

As far as I can tell, you also need to filter port 135.

Martin
-- 
Martin Radford              |   "Only wimps use tape backup: _real_ 
[EMAIL PROTECTED] | men just upload their important stuff  -o)
Registered Linux user #9257 |  on ftp and let the rest of the world  /\\
- see http://counter.li.org |       mirror it ;)"  - Linus Torvalds _\_V


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