September 2004
- Tuplespaces and MUDs J C Lawrence
- Tuplespaces and MUDs Matt Cruikshank
- Dragon Empires is cancelled dienw
- Dragon Empires is cancelled ceo
- Dragon Empires is cancelled Jim Purbrick
- Dragon Empires is cancelled OWEN, Matt, FM
- Dragon Empires is cancelled Alex Arnon
- Dragon Empires is cancelled Dana V. Baldwin
- Dragon Empires is cancelled Daniel.Harman@barclayscapital.com
- Room for more? (was Dragon Empires is cancelled) Michael Sellers
- Room for more? (was Dragon Empires is cancelled) Lee Sheldon
- Room for more? (was Dragon Empires is cancelled) Tamzen Cannoy
- Room for more? (was Dragon Empires is cancelled) Damion Schubert
- Room for more? (was Dragon Empires is cancelled) Lee Sheldon
- Room for more? (was Dragon Empires is cancelled) zgj22@drexel.edu
- Dragon Empires is cancelled Jim Purbrick
- Tuplespaces and MUDs Alex Arnon
- Tuplespaces and MUDs Zach Collins (Siege)
- Tuplespaces and MUDs ceo
- Tuplespaces and MUDs Jim Purbrick
- Tuplespaces and MUDs Ola Fosheim Grøstad
- Out of Office AutoReply: Distributed State Systems John Borland
- "flat" power treadmill [was: Casual Crowd vs.Time Rich Crowd] HRose
- Cognitively Interesting Combat Mike Rozak
- DGN/TECH: exploiting/hacking in MMOGs - sources of info?
- DGN/TECH: exploiting/hacking in MMOGs - sources of info? Ola Fosheim Grøstad
- DGN/TECH: exploiting/hacking in MMOGs - sources of info? Douglas Goodall
- DGN/TECH: exploiting/hacking in MMOGs - sources of info? John MacQueen
- DGN/TECH: exploiting/hacking in MMOGs - sources of info? HRose
- DGN/TECH: exploiting/hacking in MMOGs - sources of info? ceo
- DGN/TECH: exploiting/hacking in MMOGs - sources of info? Tim Schubert
HRose / Abalieno wrote:
> I also wonder why they [speedhacks] are so common. It should be
> easy enough to control this server side. You don't need to mantain
> the checks constantly, the server could just make them randomly
> and simply disconnect the player if something wrong is
> perceived. It should be annoying enough to make the hack
> concretely useless.
> We have ultra precise time synchronization on every PC, if we are
> able to do this we should also be able to realize who's running
> too fast.
My first submission. Please be gentle.
The reason speedhacks are popular is not too complicated: its a very
definate edge that takes advantage of a loose part of a game's
security. Networked games tend to have a little play in when and
how often it will accept movement requests. A simple example: a
server has to be able to handle a larger lump of packets from a
player that had a short connectivity issue. The server can either
kick the player, ignore the packets, or just consume them happily.
MOST players aren't cheaters so it is USUALLY best to just consume
the packets and avoid rubberbanding / etc- but therein lies a
problem. Speedhacks mostly benefit movement as most other game
systems are slow enough that speedhacking doesn't help players hit
the server limits. Tuning servers to manage movement limits and at
the same time keep the game feeling silky smooth when you get
unpredictable network traffic is a pain in the butt.
It isn't uncommon to handle the movement problem with some rate over
time constraint. This kind of limit application also keeps people
on fast connections from eradicating those on slower ones. Most
players don't ever hit this server side constraint because the
client is tuned to keep them under it to keep things running smooth
- but speedhackers operate at this limit at will and are thus faster
then others. You can use pattern recognition (per your suggestion)
to find out who hits the limit all the time but then players will
just start to use speedhack in spurts - which looks a lot like
network problems and/or is usually missed by random sampling.
My recommendation at that point (if you don't try the sprint key
idea below ;) is to gather metrics on who hits limits and look for
contextual patterns. Do they suddenly start sending packets fast
when they have 5% of their life left? After they've just stolen
something? Did they just just TP somebody's house? Do what you can
automatically, but its often going to come down to other players
complaining and some manual observation and/or investigation.
One nutty idea I thought would be an interesting approach against
speedhacking is putting a button in the game that lets you "sprint."
This would give the primary benefits and pitfalls of speedhack to
everyone. The client would send packets faster, and the server
would hit the movement limit which causes the character to consume
endurance (or whatever). The player will probably get some
rubberbanding, but they may well find that acceptible from time to
time. Maybe the presentation could be tweaked when you sprint so
you don't notice it so much. Of course, you could just do the
endurance thing without the button - either way the speedhackers
would run out of endurance and end up standing around wheezing like
Joe Camel will when he gets old. The impact on legit players
shouldn't be too severe - they're not the ones speekhacking to
escape a dragon. Whether you like this idea or not take at least
this much away : you might be able to solve this problem with
gameplay mechanics instead of networking or security measures.
Tangentally (soapbox time), my personal belief is that everything
has to be ruled by the server to some degree - never trust the
client. My litmus test: how would you feel about running your
game/system on an unencrypted text based data stream anyone could
easily screw with? If your reaction is nausea you sould probably go
add some protection to your systems. You should have movement
limits and game systems to keep cheating players in the same league
as "the innocents." Even though you have uber 2048-bit key
encryption and ping timers and gweebodisks.... eventually the small
army of players out to break your game will probably succeed and it
will become a matter of damage control.
-- Tim Schubert
MMORPG Developer - Looking for Employment
tschubert@mail.com
- DGN/TECH: exploiting/hacking in MMOGs - sources of info? Damion Schubert
- DGN/TECH: exploiting/hacking in MMOGs - sources of info? Mike Rozak
- DGN/TECH: exploiting/hacking in MMOGs - sources of info? Daniel.Harman@barclayscapital.com
- DGN/TECH: Implementing server side spatial partitiong was:(exploiting/hacking in MMOGs - sources of info?) William Leader
- DGN/TECH: Implementing server side spatial partitiong was:(exploiting/hacking in MMOGs - sources of info?) Alistair Milne
- DGN/TECH: Implementing server side spatial partitiongwas:(exploiting/hacking in MMOGs - sources of info?) John Buehler
- DGN/TECH: Implementing server side spatial partitiong was:(exploiting/hacking in MMOGs - sources of info?) Bruce Mitchener
- DGN/TECH: Implementing server side spatial partitiong was:(exploiting/hacking in MMOGs - sources of info?) HRose
- DGN/TECH: Implementing server side spatial partitiongwas:(exploiting/hacking in MMOGs - sources of info?) John Buehler
- DGN/TECH: exploiting/hacking in MMOGs - sources of info? Per Vognsen
- PHP Mud Jones, Channing
- PHP Mud Chris
- Anyone remember this thesis? Scott Jennings
- Anyone remember this thesis? Paul Schwanz
- SOC Roll play vs. Role play Matthew Rick
- SOC Roll play vs. Role play Zach Collins (Siege)
- SOC Roll play vs. Role play darksuit
- SOC Roll play vs. Role play richard@kavir.org
- SOC Roll play vs. Role play Christopher Allen
- Fwd: Distributed State Systems Alex Arnon
- Fwd: Distributed State Systems Michael Tindal
- Decision making... J C Lawrence
- Decision making... Mike Rozak
- Decision making... Ola Fosheim Grøstad
- Decision making... Byron Ellacott
- Decision making... Rayzam
- Decision making... Matt Mihaly
- Decision making... Rayzam
- Decision making... Mike Rozak
- Decision making... Kalle
- Decision making... Jason Messer
- Decision making... Douglas Goodall
- Decision making... Mike Rozak
- Decision making... Byron Ellacott
- Decision making... Tess Lowe
- Decision making... ceo
- Decision making... Douglas Goodall
- Decision making... David Kennerly
- Separating newbies and oldbies Ola Fosheim Grøstad
- Separating newbies and oldbies HRose
- Separating newbies and oldbies Ola Fosheim Grøstad
- Removing the almighty experience point... Vincent Archer
- Removing the almighty experience point... Adam Burr
- Removing the almighty experience point... Vincent Archer
- Removing the almighty experience point... Matt Mihaly
- Removing the almighty experience point... Vincent Archer
- Removing the almighty experience point... Sean Middleditch
- Removing the almighty experience point... Michael Hartman
- Removing the almighty experience point... Matt Mihaly
- Removing the almighty experience point... HRose
- Removing the almighty experience point... Matt Mihaly
- Removing the almighty experience point... Ola Fosheim Grøstad
- Removing the almighty experience point... HRose
- Removing the almighty experience point... Matt Mihaly
- Removing the almighty experience point... brian@thyer.net
- Removing the almighty experience point... Paul Schwanz
- Removing the almighty experience point... asteroid@rocketmail.com
- Removing the almighty experience point... Byron Ellacott
- Removing the almighty experience point... Kiztent Hatepriest
- Removing the almighty experience point... Johan
- Removing the almighty experience point... Kiztent Hatepriest
- Removing the almighty experience point... Amanda Walker
- Removing the almighty experience point... Vincent Archer
- Removing the almighty experience point... Ben Hawes
- Removing the almighty experience point... Johan
- Removing the almighty experience point... Johan
- Removing the almighty experience point... Amanda Walker
- Removing the almighty experience point... Sean Kelly
- Removing the almighty experience point... John Buehler
- Removing the almighty experience point... Damion Schubert
- Removing the almighty experience point... Matt Mihaly
- Removing the almighty experience point... Damion Schubert
- Removing the almighty experience point... Johan
- Removing the almighty experience point... Travis Casey
- Removing the almighty experience point... Matt Mihaly
- [SPAM] Removing the almighty experience point... Dana V. Baldwin
- [SPAM] Removing the almighty experience point... J C Lawrence
- [SPAM] Removing the almighty experience point... Matt Mihaly
- [SPAM] Removing the almighty experience point... Dana V. Baldwin
- Removing the almighty experience point... ceo
- Removing the almighty experience point... Dana V. Baldwin
- Removing the almighty experience point... ceo
- Removing the almighty experience point... Bloo
- Removing the almighty experience point... Matt Mihaly
- Removing the almighty experience point... Sean Kelly
- Removing the almighty experience point... Matt Mihaly
- Removing the almighty experience point... Sean Kelly
- Removing the almighty experience point... Matt Mihaly
- Removing the almighty experience point... Morgan Dodge
- Removing the almighty experience point... Douglas Goodall
- Removing the almighty experience point... Vincent Archer
- Removing the almighty experience point... Ben Hawes
- Removing the almighty experience point... neild-mud@misago.org
- Removing the almighty experience point... Damion Schubert
- Removing the almighty experience point... John Buehler
- Removing the almighty experience point... Matt Mihaly
- Removing the almighty experience point... David Wright
- Removing the almighty experience point... Vincent Archer
- Removing the almighty experience point... David Wright
- Removing the almighty experience point... John Buehler
- Removing the almighty experience point... Tim Schubert
- Removing the almighty experience point... Devin Smoth
- Removing the almighty experience point... zgj22@drexel.edu
- Removing the almighty experience point... Vincent Archer
- Removing the almighty experience point... Jason Messer
- Removing the almighty experience point... Michael Hartman
- Removing the almighty experience point... cruise
- Removing the almighty experience point... Devin Smoth
- Removing the almighty experience point... brian@thyer.net
- Removing the almighty experience point... Devin Smoth
- Removing the almighty experience point... Otis Viles
- Removing the almighty experience point... brian@thyer.net
- Removing the almighty experience point... Vincent Archer
- Removing the almighty experience point... Matt Mihaly
- Removing the almighty experience point... brian@thyer.net
- Removing the almighty experience point... Matt Mihaly
- Removing the almighty experience point... Ola Fosheim Grøstad
- Removing the almighty experience point... brian@thyer.net
- Removing the almighty experience point... neild-mud@misago.org
- Removing the almighty experience point... Sean Middleditch
- Removing the almighty experience point... neild-mud@misago.org
- Removing the almighty experience point... Sean Middleditch
- Removing the almighty experience point... richard@kavir.org
- Removing the almighty experience point... Sean Middleditch
- Removing the almighty experience point... Corey Cauble
- Removing the almighty experience point... Vincent Archer
- Removing the almighty experience point... Vincent Archer
- Removing the almighty experience point... brian@thyer.net
- Removing the almighty experience point... Ben Hawes
- Removing the almighty experience point... Brian Hook
- Removing the almighty experience point... Ben Hawes
- Removing the almighty experience point... Vincent Archer
- Removing the almighty experience point... brian@thyer.net
- Removing the almighty experience point... Bloo
- Removing the almighty experience point... ceo
- Removing the almighty experience point... Ola Fosheim Grøstad
- Removing the almighty experience point... richard@kavir.org
- Removing the almighty experience point... Hans-Henrik Staerfeldt
- Removing the almighty experience point... Corey Crawford
- Removing the almighty experience point... Vincent Archer
- Removing the almighty experience point... Freeman, Jeff
- Removing the almighty experience point... HRose
- Removing the almighty experience point... Vincent Archer
- Removing the almighty experience point... Mike Shaver
- Removing the almighty experience point... Vincent Archer
- Removing the almighty experience point... Mike Rozak
- Removing the almighty experience point... Zach Collins (Siege)
- Removing the almighty experience point... Vincent Archer
- Removing the almighty experience point... Mike Rozak
- Removing the almighty experience point... Will Jennings
- Removing the almighty experience point... Matt Mihaly
- Removing the almighty experience point... Travis Casey
- Removing the almighty experience point... Matt Mihaly
- Removing the almighty experience point... Damion Schubert
- Removing the almighty experience point... P J
- [SPAM] Removing the almighty experience point... Dana V. Baldwin
- Removing the almighty experience point... P J
- Removing the almighty experience point... Will Jennings
- Removing the almighty experience point... Mike Rozak
- Removing the almighty experience point... Matt Mihaly
- Removing the almighty experience point... Amanda Walker
- Removing the almighty experience point... Miroslav Silovic
- Removing the almighty experience point... Matt Mihaly
- Removing the almighty experience point... Miroslav Silovic
- Removing the almighty experience point... Matt Mihaly
- Removing the almighty experience point... Miroslav Silovic
- Removing the almighty experience point... Mike Rozak
- Removing the almighty experience point... Matt Mihaly
- Removing the almighty experience point... Miroslav Silovic
- Removing the almighty experience point... Matt Mihaly
- Removing the almighty experience point... Miroslav Silovic
- Removing the almighty experience point... Matt Mihaly
- Removing the almighty experience point... Miroslav Silovic
- Removing the almighty experience point... Matt Mihaly
- Griefer repellant (Was Decision making...) Mike Rozak
- Griefer repellant (Was Decision making...) Chek Yang FOO
- Griefer repellant (Was Decision making...) Ola Fosheim Grøstad
- Griefer repellant (Was Decision making...) Corey Cauble
- Griefer repellant (Was Decision making...) Damion Schubert
- Griefer repellant (Was Decision making...) Mike Rozak
- Griefer repellant (Was Decision making...) Chek Yang FOO
- State of Play Conference Invitation Noveck, Beth
- BIZ: Breaking the VW marketing model Mike Rozak
- Has the circle gone rusty? (fwd) J C Lawrence
- Has the circle gone rusty? (fwd) Chris
- Has the circle gone rusty? (fwd) Ren Reynolds
- Has the circle gone rusty? (fwd) zgj22@drexel.edu
- Has the circle gone rusty? (fwd) Chek Yang FOO
- Has the circle gone rusty? (fwd) Paul Schwanz
- ClicheQuest J C Lawrence
- Putting the crawl to a halt David Johansson
- Putting the crawl to a halt Vincent Archer
- Shift in time Brian Lindahl
- Shift in time Peter A. Harkins
- Shift in time Mike Rozak
- Shift in time Michael Sellers
- Shift in time Arnau Rosselló Castelló
- Shift in time Robert Zubek
- Shift in time Thomas Clive Richards
- Shift in time Mike Rozak
- Shift in time Robert Zubek
- Shift in time Amanda Walker
- Shift in time Paolo Piselli
- Shift in time Damion Schubert
- Shift in time Paolo Piselli
- Shift in time Michael Sellers
- Shift in time Mark 'Kamikaze' Hughes
- Shift in time Sunny Gulati
- Shift in time Brian Lindahl
- Shift in time Matt Mihaly
- Shift in time Brian Lindahl
- Shift in time Ola Fosheim Grøstad
- TCP/UDP/IP Offload NIC for gamers? Harlan Beverly
- TCP/UDP/IP Offload NIC for gamers? Ben Greear
- TCP/UDP/IP Offload NIC for gamers? Jay Moran
- TCP/UDP/IP Offload NIC for gamers? Harlan Beverly
- TCP/UDP/IP Offload NIC for gamers? Ben Greear
- TCP/UDP/IP Offload NIC for gamers? Harlan Beverly
- TCP/UDP/IP Offload NIC for gamers? Jay Moran
- OpenTNL and DirectPlay (hardware acceleration) Harlan Beverly
- OpenTNL and DirectPlay (hardware acceleration) Brian Hook
- OpenTNL and DirectPlay (hardware acceleration) Jeremy Noetzelman
- OpenTNL and DirectPlay (hardware acceleration) Harlan Beverly
- OpenTNL and DirectPlay (hardware acceleration) Brett Bibby
- BIZ: Gaming Hardware Startup, looking for good Gaming Business Development Person Harlan Beverly
- BIZ: Gaming Hardware Startup, looking for good Gaming Business Development Person
- BIZ: Gaming Hardware Startup, looking for good Gaming Business Development Person Amanda Walker
- The Lag monster... Harlan Beverly
- The Lag monster... Matthew D. Fuller
- The Lag monster... Kiztent Hatepriest
- The Lag monster... Kiztent Hatepriest
- The Lag monster... Sean Kelly
- The Lag monster... Justin Randall
- The Lag monster... Sean Kelly
- The Lag monster... Harlan Beverly
- The Lag monster... Amanda Walker
- The Lag monster... lynx@lynx.purrsia.com
- The Lag monster... Ola Fosheim Grøstad
- TCP/UDP/IP Offload NIC for gamers? Byron Ellacott
- DGN/TECH: Implementing server side spatial partitioning William Leader
- DGN/TECH: Implementing server side spatial partitioning Damion Schubert