[Opensim-users] List of banned viewers for config files?

Sun Aug 19 12:55:17 UTC 2012

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.

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):

DeniedClients =
"Twisted|Crawler|Cryolife|FuckLife|StreetLife|GreenLife|AntiLife|KORE-Phaze|Synlyfe|Purple
Second Life|SecondLi |Emerald"

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.

Sincerely,

- Fleep

Chris M. Collins (SL/OS: Fleep Tuque)
Center for Simulations & Virtual Environments Research (UCSIM)
UCIT Instructional & Research Computing
University of Cincinnati
406A Zimmer Hall
315 College Drive
PO BOX 210088
Cincinnati, OH 45221-0088
chris.collins at uc.edu
(513) 556-3018

http://ucsim.uc.edu

On Sat, Aug 18, 2012 at 3:24 PM, R.Gunther <rigun at rigutech.nl> wrote:

>  Banning a viewer is just stupid, especially because the newer viewers
> work better.
> But what i dont understand is that you blame the distance from region to
> grid server.
> I can remember something that you did have the same problems in EC2 cloud
> on windows server.
> 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.
>
>
> On 2012-08-18 17:07, Akira Sonoda wrote:
>
> 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:
> http://www.flickr.com/photos/akirasonoda/7803972118/  no major problem
> ... feedback was: Rezzing is better, less clouds ...
>
>  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...
>
> 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.
>
>  take care
> Akira
>
>
> 2012/8/14 Justin Clark-Casey <jjustincc at googlemail.com>
>
>> GetMesh and GetTexture should be fine in 0.7.4-rc1 (and probably earlier).
>>
>> 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).
>>
>>
>> On 13/08/12 18:42, Akira Sonoda wrote:
>>
>>> Hi Word,
>>>
>>> Because with those caps
>>>
>>> Cap_GetTexture=""
>>> Cap_GetMesh=""
>>> Cap_FetchInventoryDescendents2=""
>>> Cap_FetchInventory2=""
>>>
>>> you won't see any textures on prims ... meaning all prims will be
>>> invisible. Only Singularity 1.7 has this problem and is therefore
>>> banned
>>> The same applies for the experimental Cool VL Viewer which will be on
>>> the banned list as well.
>>>
>>> Once I am certain at least GetTexture and GetMesh won't harm, they
>>> possibly can be also allowed. But right now i do what is written in
>>> the comment of the OpenSim.ini:
>>>
>>>     ; This is disabled by default. Change if you see fit. Note that
>>>      ; serving this cap from the simulators may lead to poor performace.
>>>
>>> Poor Performance ... I am sensitive on that .... and it is even worse...
>>>
>>> Take care
>>> Akira
>>>
>>> 2012/8/13, drwhiet at spacefriends.de <drwhiet at spacefriends.de>:
>>>
>>>> Hi Akira,
>>>>
>>>> Why are you banning Singularity ?
>>>>
>>>> Best regards
>>>> Wordfromthe Wise
>>>>
>>>> On 13.08.2012, at 00:25, Akira Sonoda <akira.sonoda.1 at gmail.com> wrote:
>>>>
>>>>  Hi Fleep,
>>>>>
>>>>> First, banning viewers is not a good thing, especially not on osgrid,
>>>>> because osgrid is here for testing the OpenSimulator under real life
>>>>> usage
>>>>> and as far as i know OpenSim wants to support all of the viewers
>>>>> floating
>>>>> around.
>>>>>
>>>>> Buuuuut ... it is really annoying to have a sim crashing when you have
>>>>> a
>>>>> party with some 15 to 30 people partying. Therefore I enabled on one of
>>>>> the 50 sims i am maintaining, the following rules:
>>>>>
>>>>> AllowedClients="Phoenix|Imprudence|Cool|Singularity|Firestorm|0.6.3"
>>>>> BannedClients="Singularity 1.7"
>>>>>
>>>>> Those should support most of the used viewers:
>>>>> http://www.flickr.com/photos/akirasonoda/7769188218/
>>>>>
>>>>> Firestorm is in, because many people use it. This is the riskiest part
>>>>> because with my avatar i crash ( or at least produce ACK timeouts for
>>>>> all
>>>>> viewers ) the sims all the time using the latest Firestorm.
>>>>>
>>>>> If you have your own grid, then you can apply viewer restrictions on
>>>>> grid
>>>>> level.
>>>>>
>>>>> Take care,
>>>>> Akira
>>>>>
>>>>>
>>>>> 2012/8/9 Fleep Tuque <fleep513 at gmail.com>
>>>>> Hi all,
>>>>>
>>>>> I was wondering if anyone was willing to share their list of banned
>>>>> viewers used in the config files for Opensim?  I don't know what the
>>>>> latest and greatest bad viewers are (or really any of them since I
>>>>> don't
>>>>> use them!), but if anyone has a good list, I for one would appreciate
>>>>> the
>>>>> info.
>>>>>
>>>>> For the record, I understand that the banned viewer list in the config
>>>>> can
>>>>> be overridden by a savvy griefer, so it's not air tight security, but I
>>>>> figure any effort to combat it doesn't hurt..
>>>>>
>>>>> Thanks in advance!
>>>>>
>>>>> - Chris/Fleep
>>>>>
>>>>>
>>>>> Chris M. Collins (SL/OS: Fleep Tuque)
>>>>> Center for Simulations & Virtual Environments Research (UCSIM)
>>>>> UCIT Instructional & Research Computing
>>>>> University of Cincinnati
>>>>> 406A Zimmer Hall
>>>>> 315 College Drive
>>>>> PO BOX 210088
>>>>> Cincinnati, OH 45221-0088
>>>>> chris.collins at uc.edu
>>>>> (513) 556-3018 <%28513%29%20556-3018>
>>>>>
>>>>> http://ucsim.uc.edu
>>>>>
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>>>>>
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>>>>>
>>>>
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>>>
>>
>>   --
>> Justin Clark-Casey (justincc)
>> http://justincc.org/blog
>> http://twitter.com/justincc
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