People will be less likely to volunteer or share information if they are worried about being publicly ridiculed, so let's try to keep the discussion positive and find better ways to communicate disagreement than calling people stupid. In addition, I think blanket statements are hard to defend, since there are so many people using Opensim for so many different use-cases and what works for one grid operator might not work for another.<div>
<br></div><div>For my part, my goal was to at least make the attempt to block known bad viewers even if there are technically ways to work around the block for the more savvy griefer. I'm not sure where I got all of these viewer names as I just add to the list over time when I come across blog posts or other information about "bad" viewers, but this is the list I've compiled so far (and apologies for the profanity):</div>
<div><br></div><div>DeniedClients = "Twisted|Crawler|Cryolife|FuckLife|StreetLife|GreenLife|AntiLife|KORE-Phaze|Synlyfe|Purple Second Life|SecondLi |Emerald"</div><div><br></div><div>Thanks to all who shared information and if anyone else knows other viewers that are generally used for nefarious purposes rather than legitimate uses, I'd be happy to add them to my list.</div>
<div><br>Sincerely,</div><div><br></div><div>- Fleep</div><div><br></div><div><br></div><div>Chris M. Collins (SL/OS: Fleep Tuque)</div><div>Center for Simulations & Virtual Environments Research (UCSIM)</div><div>UCIT Instructional & Research Computing</div>
<div>University of Cincinnati</div><div>406A Zimmer Hall</div><div>315 College Drive</div><div>PO BOX 210088</div><div>Cincinnati, OH 45221-0088</div><div><a href="mailto:chris.collins@uc.edu">chris.collins@uc.edu</a></div>
<div>(513) 556-3018</div><div><br></div><div><a href="http://ucsim.uc.edu">http://ucsim.uc.edu</a> <br><div><div><br><div class="gmail_quote">On Sat, Aug 18, 2012 at 3:24 PM, R.Gunther <span dir="ltr"><<a href="mailto:rigun@rigutech.nl" target="_blank">rigun@rigutech.nl</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>Banning a viewer is just stupid,
especially because the newer viewers work better.<br>
But what i dont understand is that you blame the distance from
region to grid server.<br>
I can remember something that you did have the same problems in
EC2 cloud on windows server.<br>
and the EC2 cloud is in usa. So that dont explain much. You now
lock people out of a region only because the dont use imprudence
or some other "buggy" viewer.<div><div class="h5"><br>
<br>
On 2012-08-18 17:07, Akira Sonoda wrote:<br>
</div></div></div><div><div class="h5">
<blockquote type="cite">Should be fine... is the correct wording :-) It works
fine for Sims with 1 to 5 Avatars simultaneously which is possibly
99.9% of the whole Landmass served by OpenSim, but on crowded
spaces very distant (Europe) from the Asset- Inventory etc. Severs
( California ) it does not... especially if the Cache Hit Ratio is
low. Since November 2011 when those caps were introduced we only
had problems which could be mitigated by disabling those caps and
with the viewer bans in place we had quite a successful OSG5B
Friday Party with 37 Avatars simultaneously partying without
restart ( okie by the end of the party at around 01:00 CET the
presence service went somehow corrupt and it was no longer
possible to join the party ). Failed to verify presence or
something like that was the message in the log. Yestertday again
22 People with the viewer restrictions i have in place plus
disabled lindencps: <a href="http://www.flickr.com/photos/akirasonoda/7803972118/" target="_blank">http://www.flickr.com/photos/akirasonoda/7803972118/</a>
no major problem ... feedback was: Rezzing is better, less clouds
...
<div>
<br>
</div>
<div>
<div>But for sure we'd like to welcome all Viewers at the
party... enabling getMesh ... should not be that much of an
issue, because not too many Avatar wear Meshes... on the other
hand, most of the visitors still use the imprudence especially
if we enforce it somehow by banning most other viewer capable
of rendering meshes, therefore there is no big rush to enable
getMesh again... </div>
<div>
<div>
<br>
Right now I am thinking of factoring the whole HTTP stuff
out of the OpenSim into a separate Process, in order to have
OpenSim doing what it can best, acting as a Region Server
calculating physics and executing scripts and serving legacy
UDP Packets to the Viewers. I hope to be able to start a
Proof of Concept rather soon. In parallel I will do further
testing with the different viwers and the different
combination in order to get further insights.
<div>
<br>
</div>
<div>take care</div>
<div>Akira</div>
<div><br>
</div>
<div><br>
<div class="gmail_quote">2012/8/14 Justin Clark-Casey <span dir="ltr"><<a href="mailto:jjustincc@googlemail.com" target="_blank">jjustincc@googlemail.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
GetMesh and GetTexture should be fine in 0.7.4-rc1
(and probably earlier).<br>
<br>
I think the "may lead to poor performance" was rather
cautious. If anything, fetching via HTTP should lead
to better performance since it's not generating lots
of UDP messages that have to traverse OpenSimulator's
UDP client stack (and hence appear to be able to hold
up/crowd out other UDP messages in the process).
<div>
<div><br>
<br>
On 13/08/12 18:42, Akira Sonoda wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi Word,<br>
<br>
Because with those caps<br>
<br>
Cap_GetTexture=""<br>
Cap_GetMesh=""<br>
Cap_FetchInventoryDescendents2=""<br>
Cap_FetchInventory2=""<br>
<br>
you won't see any textures on prims ... meaning
all prims will be<br>
invisible. Only Singularity 1.7 has this problem
and is therefore<br>
banned<br>
The same applies for the experimental Cool VL
Viewer which will be on<br>
the banned list as well.<br>
<br>
Once I am certain at least GetTexture and
GetMesh won't harm, they<br>
possibly can be also allowed. But right now i do
what is written in<br>
the comment of the OpenSim.ini:<br>
<br>
; This is disabled by default. Change if you
see fit. Note that<br>
; serving this cap from the simulators may
lead to poor performace.<br>
<br>
Poor Performance ... I am sensitive on that ....
and it is even worse...<br>
<br>
Take care<br>
Akira<br>
<br>
2012/8/13, <a href="mailto:drwhiet@spacefriends.de" target="_blank">drwhiet@spacefriends.de</a>
<<a href="mailto:drwhiet@spacefriends.de" target="_blank">drwhiet@spacefriends.de</a>>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi Akira,<br>
<br>
Why are you banning Singularity ?<br>
<br>
Best regards<br>
Wordfromthe Wise<br>
<br>
On 13.08.2012, at 00:25, Akira Sonoda <<a href="mailto:akira.sonoda.1@gmail.com" target="_blank">akira.sonoda.1@gmail.com</a>>
wrote:<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi Fleep,<br>
<br>
First, banning viewers is not a good thing,
especially not on osgrid,<br>
because osgrid is here for testing the
OpenSimulator under real life usage<br>
and as far as i know OpenSim wants to
support all of the viewers floating<br>
around.<br>
<br>
Buuuuut ... it is really annoying to have a
sim crashing when you have a<br>
party with some 15 to 30 people partying.
Therefore I enabled on one of<br>
the 50 sims i am maintaining, the following
rules:<br>
<br>
AllowedClients="Phoenix|Imprudence|Cool|Singularity|Firestorm|0.6.3"<br>
BannedClients="Singularity 1.7"<br>
<br>
Those should support most of the used
viewers:<br>
<a href="http://www.flickr.com/photos/akirasonoda/7769188218/" target="_blank">http://www.flickr.com/photos/akirasonoda/7769188218/</a><br>
<br>
Firestorm is in, because many people use it.
This is the riskiest part<br>
because with my avatar i crash ( or at least
produce ACK timeouts for all<br>
viewers ) the sims all the time using the
latest Firestorm.<br>
<br>
If you have your own grid, then you can
apply viewer restrictions on grid<br>
level.<br>
<br>
Take care,<br>
Akira<br>
<br>
<br>
2012/8/9 Fleep Tuque <<a href="mailto:fleep513@gmail.com" target="_blank">fleep513@gmail.com</a>><br>
Hi all,<br>
<br>
I was wondering if anyone was willing to
share their list of banned<br>
viewers used in the config files for
Opensim? I don't know what the<br>
latest and greatest bad viewers are (or
really any of them since I don't<br>
use them!), but if anyone has a good list, I
for one would appreciate the<br>
info.<br>
<br>
For the record, I understand that the banned
viewer list in the config can<br>
be overridden by a savvy griefer, so it's
not air tight security, but I<br>
figure any effort to combat it doesn't
hurt..<br>
<br>
Thanks in advance!<br>
<br>
- Chris/Fleep<br>
<br>
<br>
Chris M. Collins (SL/OS: Fleep Tuque)<br>
Center for Simulations & Virtual
Environments Research (UCSIM)<br>
UCIT Instructional & Research Computing<br>
University of Cincinnati<br>
406A Zimmer Hall<br>
315 College Drive<br>
PO BOX 210088<br>
Cincinnati, OH 45221-0088<br>
<a href="mailto:chris.collins@uc.edu" target="_blank">chris.collins@uc.edu</a><br>
<a href="tel:%28513%29%20556-3018" value="+15135563018" target="_blank">(513)
556-3018</a><br>
<br>
<a href="http://ucsim.uc.edu" target="_blank">http://ucsim.uc.edu</a><br>
<br>
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-- <br>
Justin Clark-Casey (justincc)<br>
<a href="http://justincc.org/blog" target="_blank">http://justincc.org/blog</a><br>
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