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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Code exists in ConferenceXP to modify the
Windows XP Firewall settings from managed code. See Firewall.cs under the
MSR.LST.Net.Rtp project. While this code is in C#, it could either be
ported to VB.Net or it could be compiled as a separate assembly that is callable
from VB.Net as is. Be glad to offer pointers on either.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>This is how we open and close firewall
ports on the host using ConferenceXP automatically so that users are neither
blocked nor tempted to shut off the firewall ;-)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
owner-ag-tech@mcs.anl.gov [mailto:owner-ag-tech@mcs.anl.gov] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Bob Riddle<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, <st1:date Year="2003"
Day="08" Month="8" ls="trans" w:st="on">August 08, 2003</st1:date> <st1:time
Minute="18" Hour="18" w:st="on">6:18 PM</st1:time><br>
<b><span style='font-weight:bold'>To:</span></b>
gurcharan.s.khanna@Dartmouth.EDU<br>
<b><span style='font-weight:bold'>Cc:</span></b> fs@wpi.edu; cifer_ng@<st1:mswterms
w:st="on">yahoo</st1:mswterms>.com.sg; ag-tech@mcs.anl.gov<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [AG-TECH] beacon,
vtc, multicast???</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>well ... when the Detective began, host based firewalls were not
pervasive & the early goal was to pick ports that wouldn't normally be used
on a Win98 machine ... so we threw darts at the wall and decided that the
Detective would use the following ports:<br>
6666<br>
7777<br>
8888<br>
<br>
We're going to change this in the next "semi-release" to use
well-known ports (80, 21, etc.) to the Detective Server on <st1:City w:st="on"><st1:place
w:st="on">Abilene</st1:place></st1:City> which we hope will pass thru
"normal" host based firewalls. This will, we hope, discourage
end-users from turning off their host-based firewalls (and thus generating more
exposure to their machine).<br>
<br>
Any & all advice will be appreciated - if you prefer you can email me or
email <a href="mailto:detective@internet2.edu">"detective@internet2.edu"</a>.<br>
<br>
Gurcharan S. Khanna wrote:<br>
<br>
<o:p></o:p></span></font></p>
<pre wrap=""><font size=2 face="Courier New"><span style='font-size:10.0pt'>hi,<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>could someone refresh my memory? doesn't the moo run over port<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>7777 also? and wasn't that also a problem due to that port being<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>blocked or squeezed because it was the napster port? (it was always<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>extremely slow for us; i guess there's a proxy now or something?).<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>seems like some other port number would be more useful in these<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>filtered environments. why is 7777 the port of choice?<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>-gurcharan<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>--- You wrote:<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>On Fri, <st1:date
Year="2003" Day="08" Month="8" ls="trans" w:st="on">Aug 08, 2003</st1:date> at 01:06:26AM -0400, Gurcharan S. Khanna wrote:<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> <o:p></o:p></span></font></pre>
<blockquote style='margin-top:5.0pt;margin-bottom:5.0pt' type=cite><pre wrap=""><font
size=2 face="Courier New"><span style='font-size:10.0pt'>hi,<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>not sure if there's a built-in tool in AG 2.0 but you can download a nice<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>little utility from detective.internet2.edu called internet detective. this<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>will test for multicast connectivity, connection to the <st1:City
w:st="on"><st1:place w:st="on">Abilene</st1:place></st1:City> network, and<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>bandwidth tests.<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> <o:p></o:p></span></font></pre></blockquote>
<pre wrap=""><font size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Note, though, that the new version of the tool runs over port 7777, and so may<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>get blocked by various P2P firewall rules.<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> <o:p></o:p></span></font></pre>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><br>
<br>
<o:p></o:p></span></font></p>
<pre><font size=2 face="Courier New"><span style='font-size:10.0pt'>-- <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Bob Riddle (<a
href="mailto:bdr@internet2.edu">bdr@internet2.edu</a>) Technologist,Internet2<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>3025 Boardwalk, <st1:address
w:st="on"><st1:Street w:st="on">Suite</st1:Street> 100</st1:address> <st1:place
w:st="on"><st1:City w:st="on">Ann Arbor</st1:City>, <st1:State w:st="on">Michigan</st1:State> <st1:PostalCode
w:st="on">48108</st1:PostalCode></st1:place><o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Business Phone: 734.913.4257 Fax Number: 734.913.4255<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>"<st1:place
w:st="on">Opportunity</st1:place> is missed by most people because it is dressed in overalls and looks like work" Thomas Edison<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre></div>
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