@eyedeekay
+R4SAS
+RN
+RN_
+T3s|4
+Xeha
+acetone
+orignal
+weko
Irc2PGuest89954
Leopold_
Onn4l7h
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aargh2
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weko
zzz: did you change something?
weko
Looks strange
weko
zzz: I think you need decrease ban rate for TBM. On 10-15k transits, I have smaller TCSR, then on 7-9k
zzz
weko, I'm always changing things, that's my job
weko
zzz: i asked, for verify what it isnt some real changes
weko
and also
weko
<+weko> zzz: I think you need decrease ban rate for TBM. On 10-15k transits, I have smaller TCSR, then on 7-9k
zzz
weko, stats remembers routers for 30 days, so sometimes the graph changes because of something that happened 30 days ago
zzz
re: ban rate, please explain more
weko
i think java routers ban my router when may transit tunnels
weko
5 sec ago I understood what it maybe by other reason
weko
*many
zzz
weko, upi dpmt
zzz
um
zzz
weko, I'm not changing anything
zzz
you don't understand
zzz
your router is hurting the network
zzz
drop tunnel spam
zzz
do not pass spam through to other routers
weko
<~zzz> your router is hurting the network
weko
it is transit tunne;s
weko
tunnels*
weko
my router have maximum 200 tunnels
zzz
right
weko
why hurting then?
zzz
but your router is allowing it
zzz
stop the spam
zzz
don't send it on to me
zzz
no
zzz
the transit tunnels through you
zzz
drop the tunnel build request
zzz
don't send it on to me
zzz
protect the network
weko
but i want contribute the network... why i shoud drop
zzz
because it's an attack. it's spam
weko
okay you think it is because i dont verify spam?
zzz
right
zzz
if you accept every tunnel you hurt the network
zzz
that's the problem
zzz
so yes I'm dropping your build requests
weko
have you confirmation about special tunnel spam? maybe some IPs?
zzz
no
zzz
we count how many requests you are making
weko
then why you think that this is not real tunnels
weko
maybe you need decrease rate really
zzz
because we have stats
zzz
started december 19, remember?
weko
yes
weko
but since dec 19 count of routers increased
zzz
so if you let spam through your router, then you are a spammer too
zzz
and you get blocked
weko
<~zzz> so if you let spam through your router, then you are a spammer too
weko
yes i understand this
zzz
be a "nice" router and your build requests will be accepted
weko
but you need confitm what it is not real tunnel, maybe some spammer's IPs
weko
or dicrease your rate
weko
<+weko> but since dec 19 count of routers increased
weko
+ some routers have small limit of tunnels and it was reached
zzz
you think you are helping the network by accepting everything, but you're wrong. It hurts the network
weko
no
weko
i say about other thing
zzz
sure, attacker has a lot of routers
zzz
doesn't matter
weko
you think what big num of routers since dec 19 is attaker?
weko
if it is, i understood what you mean
dr|z3d
it's not difficult to differentiate between legit requests and spam. number of requests over a short duration is normally enough, weko.
weko
dr|z3d: i understand it
weko
but you said what you have not confirmation
zzz
we aren't sure the tunnel spam is an attack, but the netdb spam is definitely an attack
zzz
we don't have confirmation it's the same attacker but a good guess, don't you think?
weko
yes netdb 100& attack
weko
%*
weko
zzz: good, but for now tunnel spam dont really hurt network. we can allow such values in any case
weko
the problem is, what we dont collect statistic about TBM count for everu router. need some diagram for be clear
weko
we cant verify what routers since dec 19 is attacker's routers if rhis routers dont spam more then any normal router
weko
maybe attacker, maybe real users.
zzz
wrong weko
zzz
it hurts the network quite a lot.
weko
i dont have problem with 15k or even 20k transits
zzz
I've done all I can to fix it on my side but I can't fix the whole network myself
weko
sure
zzz
so you fix your side
weko
we need verify what fix is indeed
weko
firstly
weko
i understand what you say about detect attacker localy, i had same idea
weko
but we need veridy first before setup limits
weko
verify*
zzz
right
zzz
I spent the last two months working on it.
zzz
so get to work
weko
i can expain why number of tunnels not proportionally of number of new routers. in any case we need stat about TBM count per RI/IP. If we will see anomaly, we will be sure about attack and can setup limit. if not, we cant be sure in attack/no attack (maybe many routers spam like normal routers and maybre real users), but also can setup limit.
zzz
do whatever you have to do to figure it out. We did all that two months ago
weko
have you plot/diagram?
weko
or just stats in plain text
zzz
no
zzz
no
weko
okay
zzz
it was discussions in #i2p-dev in december
weko
<~zzz> it was discussions in #i2p-dev in december
weko
i dont found it. in any case without stats we cant be sure in limit.
zzz
weko tl;dr no peer in more than 3% of your tunnels (previous + next hop combined), with fixed min/max caps too
weko
we should dont check next hop
weko
or split check maybe
weko
and also atacker can spam via tunnels (anomously)
weko
like we build outbound tunnels via out inbound tunnels
weko
our*
zzz
weko, I can tell you what we do but you have to do your own design
zzz
we have about 20 different checks and throttles before we accept a tunnel
zzz
this throttle was added in June 2011
zzz
all we did was make it more strict last month
zzz
one line change
zzz
most of our checks were implemented by jrandom in 2004-2005
dr|z3d
the time for thinking more is good is gone. :)
weko
if your checks is old, it is not mean what it is right
weko
<+dr|z3d> the time for thinking more is good is gone. :)
weko
sure)
weko
and also
weko
what you think?
weko
<+weko> and also atacker can spam via tunnels (anomously)
weko
<+weko> like we build outbound tunnels via out inbound tunnels
weko
<+weko> our*
zzz
yes weko. I'm just saying we have almost 20 years development time and experience in rejecting/dropping tunnel requests
zzz
if you can do better, great
weko
but only now we have real issue
weko
<+weko> and also atacker can spam via tunnels (anomously)
weko
<+weko> like we build outbound tunnels via our inbound tunnels
weko
i know how we can implement protection. do you know?
zzz
I'm happy with our current design and limits
zzz
maybe needs some small adjustment, but we don't need any more ideas
weko
your limits is useless, while attacker can spam via inbound tunnels
weko
thought*
zzz
it's working to block your router spam :)
zzz
and the changes in our last release worked very well
zzz
so don't tell me it's useless. I can see the stats
weko
why attacker cant spam thought inbound tunnels&
zzz
but if you have a better idea, go do it
weko
?*
zzz
why is it working to stop your router then?
zzz
you are the attacker
weko
no))
weko
because i didnt edit code
zzz
if you let the attacker tunnels through, you are an attacker also
zzz
I can't tell the difference and I don't care
weko
tell me why i cant spam thought inbound tunnels with your limits
zzz
tell me why my code isn't working
weko
i dont meant working or not
weko
i mean useless for attacker, because he can spam thought inbound tunnels
weko
if we IBGW we dont know what owner spamming TBMs
weko
but your code will ban us
zzz
we have this throttle since 2012
zzz
it's one of about 20 checks and throttles
zzz
it doesn't have to be perfect by itself
zzz
it's part of a system
zzz
it's not designed to stop every attack
weko
but we can change design, right?
weko
i have idea how we can make protection
weko
but you said what you dont need new ideas
dr|z3d
I think what zzz is suggesting is that i2pd needs to implement some throttles and checks all of their own.
weko
ofc
dr|z3d
that's the best way to persuade him that there's some new defense strategy he hasn't thought of. implement it!
zzz
weko, do it however you want, you think you have a better idea, great
zzz
just stop spamming the network
weko
not better idea; new idea
weko
about new topic
weko
<~zzz> just stop spamming the network
weko
Client Tunnels: 156
zzz
if new isn't better, why do it?
weko
because this idea for prvent other type of attacks
zzz
fine, have fun
weko
TBMs spam thought inbound tunnels
zzz
you are trying to fix theoretical problems. Fix the actual problems first
weko
true
weko
but i can suggest solution in any case
zzz
I have 99 actual problems to work on first
weko
i can add 100 :)
zzz
maybe, after you fix your 99
weko
we need to not encrypt TBMs when we send it thought tunnel (IBGW must see it, no any critical information there), then IBGW can limit it. Yes, it breaks backward compibality, but we can stop encrypting it now, and use it to stop potential attack in future.
weko
this attack can be used for more easier deanon, if all routers will be with your limits
weko
we can manipulate with bans => we can do more easier deanon
weko
looks like more problematic issue
weko
i agree what we can do solution for DoS after/during DoS, but we need prevent deanon attack before deanon attack
weko
Example:
weko
we want:
weko
router A ban router B.
weko
we build our tunnels, where B is IBGW. We spam thought this tunnels with TBMs on router A, and router A will ban router B because TBMs limit (source of TBMs for router A).
weko
I guess you understand how ban manipulation can be used for deanon
dr|z3d
you're preaching to the choir, weko :)
obscuratus
What's a TBM?
obscuratus
Tunne build message?
weko
yes