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IRC log for #minetest, 2018-06-10

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All times shown according to UTC.

Time Nick Message
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01:05 cities !seen Fritigern
01:05 MinetestBot cities: fritigern was last seen at 2018-04-25 05:18:39 UTC on #minetest
01:06 cities Interesting.
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01:46 Ruslan1 !help
01:46 MinetestBot https://github.com/sfan5/minetestbot-modules/blob/master/COMMANDS.md
01:49 Ruslan1 !ignore lumberJ
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01:57 lumberJ please do
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06:16 cities I came in here in 2014 a bit
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08:41 MinetestBot [git] numberZero -> minetest/minetest: Fix typo (GH#7421) 90acb9b https://git.io/vh2Nh (2018-06-10T08:34:13Z)
08:41 MinetestBot [git] numberZero -> minetest/minetest: Fix narrow/utf8 difference in incoming/outcoming messages 2c0d8b2 https://git.io/vh2Nj (2018-06-10T08:33:53Z)
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09:26 ANAND Hello, why is the register_on_placenode and register_on_dignode not recommended?
09:26 ANAND https://github.com/minetest/minetest/blob/master/doc/lua_api.txt#L2804-L2813
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09:39 sfan5 ANAND: you are not supposed to use on_placenode or on_dignode when you only need it for a single node
09:46 ANAND Ah, thanks!
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11:52 Telesight Hello all ...
11:53 Telesight I tried to update a server from 0.4.16 to 0.4.17
11:53 Telesight But I get this fault: OOM error from mod '*builtin*' in callback on_joinplayer(): not enough memory
11:53 Telesight What to do with this?
11:53 sfan5 how many people do you have in your auth.txt?
11:54 Telesight 300.000 or so ...
11:54 sfan5 right
11:54 sfan5 you should clean that a bit
11:54 sfan5 or switch to sauth
11:57 Telesight How to do the sauth switch?
11:57 sfan5 !mod sauth
11:57 MinetestBot sfan5: SQLite Auth [sauth] by shivajiva - https://forum.minetest.net/viewtopic.php?t=18604
11:57 Telesight Let me see ...
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12:33 Telesight Sorry I get faults with the install ...
12:35 Telesight Everytime I updat I run into problems, no time for it anymore ...
12:36 sfan5 this is a restriction in luajit, nothing we can do
12:37 sfan5 there are a few options 1) stop the cause of memory usage (clean the auth.txt) 2) recompile luajit with gc64 to allow more memory to be used 3) recompile minetest without luajit
12:37 Telesight Sad, I have to replace the backup, I will loose many players this way
12:39 sfan5 IIRC there was a script that cleaned auth.txt from e.g. players that haven't logged in in a few months
12:39 sfan5 running something like that should be enough to bring the memory usage down
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13:02 Telesight Sad, I think I have to close at least 2 servers now ...
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13:04 Krock butwhy.png
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13:06 Telesight Hackers ruin my maps and buildings and updating does not work ...
13:06 sfan5 don't you have area protection?
13:07 Telesight They can get creative and have admin pick on a pvp server
13:07 rom1504 mind hackers then
13:08 sfan5 sounds like you should update your mods (if not already done) and report a bug
13:08 rom1504 ah "admin pick" is a thing
13:09 Telesight It is impossible to defend this way and run a server ...
13:09 sfan5 it's impossible if you give up right away, yes
13:11 Krock fix your mods as in moderators. the "privs" privilege might not be suited for everyone
13:11 Krock neither is "areas"
13:14 Telesight It has to do with self build clients, not mods ...
13:19 sfan5 how do self-built clients allow people to get the "creative" priv or some items?
13:19 Krock MTG 0.4.16 is the answer
13:20 Krock grep through the debug log. that creative inventory stuff is logged as ACTION
13:20 sfan5 that would fall under "mods", which he said wasn't the problem
13:21 Krock oh right, so this surely can't be the issue then /s
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13:31 Telesight I really dont know how they do it, the result is a ruined server ...
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13:32 sfan5 you should first update minetest_game, there was a bug in 0.4.16 that allowed unauthorized taking from the creative inv
13:32 Telesight And if updating, to solve this hacker problem, is not possible because of errors then I really dont know how to run a server this way
13:32 Telesight TI did the update, but the server failed to run
13:33 sfan5 it suffices to update only minetest_game to 0.4.17, you can keep the engine on 0.4.16 if you want (although not advised)
13:36 Telesight If I update to 0.4.17 I introduce another error, that of the out of memory problem ...
13:37 sfan5 like i said, keep the engine on 0.4.16 and only update minetest_game
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13:41 Telesight The server also becomes day by day slower ... I think also that auth.txt file...
13:44 Krock Maybe it's because the map size is at least a few gigabytes and you're still using sqlite3 instead of postgresql
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14:28 rubenwardy Telesight: sban helps with that
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15:06 Telesight @rubenwardy What you mean with sban?  An alternative way?
15:07 rubenwardy Oops, *sauth
15:07 sfan5 I already suggested that
15:13 Telesight So I own a car to go to the supermarket, but the solution is to use a wheelchair instead ...
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15:24 Krock Telesight, you can tweak that wheelchair a little with a turbine or electric wheels
15:24 Krock will also be a bit more exciting than the regular trip
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15:25 Ruslan1 Hi Telesight
15:28 Telesight car=Minetest weelchair=alternative solutions
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15:29 sfan5 you want to go to the supermarket, but your car is broken. do you 1) not go there? 2) use an alternative means of transportation?
15:31 cities 1.
15:31 cities use amazon
15:31 ANAND Can't find the page now, but lag01 has a nifty script for clearing unused entries from auth.txt
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15:32 Krock but then you realize that amazon does not offer the delivery service in Greenland or Madagaskar
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15:32 Telesight Well, I think the good reader understands what I am saying ...
15:33 Telesight Thanks Anand I hope to find it
15:34 Ruslan1 Telesight: what is your server
15:34 Telesight It is offline now, the name is MinersWorld ...
15:35 Telesight And SkyWars is the other that I had to take offline
15:35 Ruslan1 Telesight: how many players get banned
15:36 Telesight Ruslan1 what you mean with how many?
15:36 Ruslan1 Yes
15:37 Telesight Banned? I dont know ...
15:42 Ruslan1 Telesight: did you ban Gracye
15:47 Ruslan1 Telesight: are you here
15:48 Telesight Ruslan1 Who is Gracye?
15:49 Ruslan1 You know
15:51 Telesight I just checked but Gracye is not banned, but what has this to do with my problem?
15:52 Ruslan1 Um
15:53 Ruslan1 Telesight: who did hack your server
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15:58 MinetestBot [git] nerzhul -> minetest/minetest: Android: use c++_shared library instead of c++_static 5966e89 https://git.io/vhaLK (2018-06-10T15:57:29Z)
15:58 MinetestBot [git] nerzhul -> minetest/minetest: Fix many Android build issues 057f157 https://git.io/vhaL6 (2018-06-10T15:54:44Z)
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16:11 blaise WOOOOOOOHOOOOOOOOOOO!!!!!!
16:25 Telesight Ruslan1 I dont know
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16:31 MinetestBot [git] nerzhul -> minetest/minetest: Bump android version for next release 2e18a2d https://git.io/vhati (2018-06-10T16:30:25Z)
16:36 MinetestBot [git] nerzhul -> minetest/minetest: Disable clang-tidy when no C/C++ files has been modified. fb4e4f0 https://git.io/vhatQ (2018-06-10T16:33:33Z)
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16:56 IhrFussel Telesight, A modified client CANNOT simply tell the server to give them whatever they like...the server checks the request first ... so the only way to "hack" items without a certain priv is a security hole in mod(s) ... the creative exploit was known for months now and I edited the files manually back when my server was still 0.4.16
16:57 IhrFussel now MTG 0.4.17 (not the engine) is out and you can simply replace 0.4.16 MTG with this one ... it contains the bugfix for the exploit
16:59 IhrFussel And in case you use 3d_armor and didn't update it for a long time: It also had an exploit, so better update
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17:28 Telesight IhrFussel Thank you for your reaction, I will update Minetest_game. To also update the engine I have to make my autht.txt smaller first.
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17:34 IhrFussel No need to update the engine for that...there is no known exploit caused by the engine AFAIK
17:34 Krock inb4 there's 0.4.17.1
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17:36 IhrFussel Well it's not hard to clean the auth.txt ... I once had a script for that..let me check if I still got it somewhere
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17:44 IhrFussel Telesight, are you on Linux?
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17:54 xerox123 does the script remove unused entries?
17:54 xerox123 if so, how old?
18:02 IhrFussel I did it! It's just a one liner
18:02 IhrFussel delts=$(date -d "8 months ago" +%s); awk -F ':' -v ts="$delts" '($4>ts) {print}' auth.txt > tempauth.txt
18:03 IhrFussel This will copy all entries where the last login was <= 8 months ago into tempauth.txt
18:04 IhrFussel It's very fast too (took 5 seconds with 10,000 lines)
18:06 Calinou awk is love, awk is life
18:06 Calinou I had a class on awk earlier this week :P
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18:31 Telesight IhrFussel Sorry for the delay, yes "I am on Linux" ...
18:36 IhrFussel Telesight, good then you can now use my one-liner and adjust the amount of months for the last login
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18:45 Glorfindel glorfindel hi
18:55 Telesight Ihfussel 280.000 accounts in < 1 second
18:57 IhrFussel Check with wc -l tempauth.txt if the lines are really in it...when sure you can replace the old auth.txt ... you should still save the old auth.txt somewhere just in case
19:01 BillyS Hmm
19:01 BillyS Can I make tnt.boom not destory everthing, but still hurt players?
19:01 BillyS If I set radius to 0, there is no explosion
19:02 Krock damage_radius = 20
19:03 BillyS Hmm
19:03 BillyS thx
19:03 Krock !next
19:03 MinetestBot Another satisfied customer. Next!
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19:04 BillyS lol
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20:11 cities have you guys moved to discord
20:12 Krock a few of them use it but IRC is still the only official chat
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20:15 cities ah
20:15 cities it seems quieter than in 2014 :)
20:16 Krock discord existed in 2014?
20:16 cities No, this
20:16 Krock this what
20:16 cities This channel seems quieter than in 2014.
20:16 cities Which is why I asked if people had moved to discord.
20:16 Krock must be the lower occurrency of flamewars
20:16 cities Oh, I don't know anything about that.
20:18 Krock <add a quiet phase right after the next message here>
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21:48 Teckla Is there anything obviously wrong with this line of Lua code?  local cid_stone_brick = minetest.get_content_id("default:stone_brick")
21:48 sfan5 no
21:49 Teckla I'm using LVM to generate structures.  This works: local cid_air = minetest.get_content_id("air")
21:49 Teckla sfan5: Thanks.  Hmmm.
21:49 * Teckla is perplexed why his fill_area function works with cid_air but not with cid_stone_brick.
21:49 sfan5 it's default:stonebrick
21:50 Teckla sfan5: Ah, thank you -- my apologies -- though no success with that extraneous _ removed either.
21:50 Teckla I wonder if it has something to do with trying to fill in a block where the player currently is.
21:50 sfan5 then you're doing something else wrong
21:51 sfan5 nah that should wor
21:51 sfan5 k
21:51 Teckla Ah.
21:51 Teckla sfan5: Thanks for your help.  :)  I'm sure I'll eventually see what I did wrong here.
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22:01 Teckla Heh, it's strangely enjoyable to write Lua code that wipes out a big chunk of the map where part of the map is ocean, and then watch the ocean water come flooding in.
22:07 huesal Teckla: you can do that easily with WorlEdit mod
22:07 Teckla Cool.  :)
22:08 Teckla Ultimately, I'm hoping to generate some buildings programmatically.
22:09 Teckla Although I'm starting to become pretty confident this problem is not in my Lua code...
22:11 Teckla Ah, maybe my world file is broken, actually
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23:10 huesal any tips on lowering my world's load time?
23:19 ishka You mean on login? Or server startup?
23:20 ishka For login-time: Less different graphics may help, as far as I know (not tested, just from what I have read)
23:20 huesal login time
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23:20 huesal more so in Android
23:21 swift110 hey all
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23:42 lsab hello. Is there some mod to generate people?
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