Re: Blocking Access to web-based email

In article <11fnh0lr4p1rreb@news.supernews.com>,
I am a Sock Puppet <strap@hanh-ct.org> wrote:
:Walter Roberson wrote:

:> No, the IM services sometimes use different net numbers, hosts, or ports.
:> Some of them, such as Skype, are aggressive in searching out ports
:> that are not blocked by the local firewall.

:But if ya use a firewall with deep packet inspection that knows what
:traffic for these services looks like, it won't matter how aggressive
:the software is.

:My sonicwall seems to do a pretty darn good job of blocking IM.

That's nice, but the OP's requirement was to block ALL web-based email
and IM services. There's an unlimited number of those around,
with an unlimited number of potential protocols. For example, some
people IM by renaming files in a NETBIOS shared Windows partition.

-- 
   Look out, there are llamas!