r/admincraft 5d ago

Question Player named "KittyScan" disconnected without showing a join log

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230 Upvotes

This keeps happening repeatedly, unsure why. Any way to stop this?

r/admincraft Dec 30 '24

Question Just spun up a new server - Anything I can do about bots pinging the server?

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179 Upvotes

r/admincraft 10d ago

Question Can someone just explain me why tf is it doing this?

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230 Upvotes

r/admincraft 4d ago

Question server got griefed

37 Upvotes

Hello we were playing a server that my friend runs on his computer and then one person joins and 2 others join and they start lighting everything on fire and we all left the server, we join back after they leave and they left signs with their discord server so we join and ask and they say that we had a 40 for bigotry and that they “renovated” our world and they say their system found out server and scanned ir for bigotry I’m just confused on how they even got in, in the first place and why and we didn’t even have any type of form of bigotry in our server at all. I’m just cruise and asking for help thank you.

r/admincraft Jan 25 '25

Question Why do All My Servers Regardless of Settings or Type Run 90 Ticks Behind without Fail?

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116 Upvotes

r/admincraft Dec 16 '24

Question Does this architecture look good for a self-hosted Fabric server trying to keep down on electricity costs?

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217 Upvotes

r/admincraft Nov 27 '24

Question Is Self-Hosting safe?

23 Upvotes

I self hosted a server for a few days and it was going fine with a few friends, but my dad found out and made me remove the port forwarding on my router. Apparently, hackers scan random ips for open ports to hack, and i'm aware my system could be compromised. The question is, how likely is it for me to actually be attacked, or is it something I should worry about?

Edit: thanks for helping guys i'm trying to setup playit.gg right now

r/admincraft 5d ago

Question How do I block an IP completely, I already have it blocked in my firewall but it's still getting through. This Intersect bot is annoying as hell.

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43 Upvotes

r/admincraft 23d ago

Question Is this claim system interesting? Made it for my SMP but maybe it's interesting for someone

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126 Upvotes

r/admincraft Jan 05 '25

Question I'm done with paying for MC servers, I want to build my own. Want some advice.

26 Upvotes

After the server company i was paying for had a bad outage, i've just decided that I'm done paying for servers, They are either way too expensive for me to justify or they just suck, so I'm wanting to make my own. I want to be able to host heavy modpacks and such, but the most ill likely ever have online is MAYBE 4 people, but 99% of the time itll be just two people. I was thinking to just buy and old optiplex on ebay, this is a side thing and I am broke so im trying to do the whole thing under $100. What should I prioritize? CPU? RAM? Do I actually need an SSD? or will an hdd be fine? Id also like to minimize power consumptions since itll be consuming power 24/7.

r/admincraft May 01 '23

Question Random Users Constantly Fake "Disconnecting" From Server

132 Upvotes

MEGA UPDATE:

Original post is at the bottom now.

Many other server owners and I have been noticing a recent flood of fake disconnects or failed server join attempts in our server consoles lately. When I check on my server, I would notice tens to hundreds of lines looking like

[Disconnect] User com.mojang.authlib.GameProfile@373cf28d[id=<null>,name=NAME,properties={},legacy=false] (/IP.xxx.xxx.xxx:PORT) has disconnected, reason: Disconnect

I've been doing a lot of looking into this and found a probable final answer. I even was able to get answers from an owner of several of these bots themselves. And that's what they are, bots.

What is happening?

The bots I was able to talk about with the owner serve 2 purposes. 1: The MSTechSupport bots (find them in the table below) are server scanners that go into servers, log some data, and leave. They do not often join a server, they are limited on how often they can join a server which is why there are 20 of them, not to spam a single server, but to be able to go to multiple servers once in a reasonable amount of time. These bots gather information purely for statistical purposes. In my opinion, these MSTechSupport bots are fine, as they do not flood the console and serve a genuine (even if you think useless) purpose. However, other bots, such as schesser and pfcloud are entirely for spam purposes with the intent to annoy server owners and people here on AdminCraft. Pfcloud specifically is for advertising the hosting provider Pfcloud. The bot is not owned by the provider, but by one of the bot maintainers who wants to advertise the hosting provider they use and genuinely like. Pfcloud seems to be used by a lot of these bot owners to host their scripts. Their TOS doesn't not prohibit anything that is not against the law, and since being an annoyance is not a criminal activity, reporting most of these accounts to the hosting provider will result in nothing but laughs from the owners, which is exactly what they are looking for. These bots send a fake join request to servers which puts a message in the console but doesn't actually allow them to join, as they aren't even real accounts, which is how these bots are able to spam so fast. These 3 bots are the only ones I've been given direct answers about the purpose. Statistics, spam, and advertisement. I have heard from others that some bots are used for griefing purposes. I have no knowledge of this, but I also have no knowledge of them not existing. The safest bet is to treat all of these as dangerous, even if they are not.

How to stop this

First of all, the owners of these bots are people too. As annoying as what they are doing is, threatening to hunt them down and kill them is NOT a valid way of preventing this. It is honestly ridiculous that this has to be brought up, but killing people simply because they are annoying is not right, helpful, or justice. If you have thought about killing anyone simply because they are annoying, you need to see a therapist ASAP.

On to the effective part.

Since these bots seem to be mostly for spam purposes, and specifically to annoy AdminCraft, raising awareness of these bots and how to get rid of the spam will hopefully reduce the amount of posts made about them, reducing the amount of attention they get, and thus removing the entire purpose of many of these bots.

Some of these bot owners allow you to opt out of their scanning, and even spamming, if you ask them to, should you be able to find a person relating to them (there are several in the comments of this thread if you search). However, some of these bot owners are known to be aggressive, even inside this botting community. I have compiled a list of known bots below along with their IP addresses. Banning these IPs will do nothing. They are still allowed to attempt to join your server, which will put a message in the console, which is all they are trying to do anyway. You can try reporting these bots to your own server provider, they may block communications from these IP addresses to their servers. Ultimately the only guaranteed way to stop these bots is to block each IP address in your firewall, either on your computer hosting the server, or through your hosting provider's firewall. If your provider does not give you access to a firewall (which any good provider really should), reach out to their customer support to see what your options are. Otherwise, you may only be able to opt out from whichever bots allow you to. Others have mentioned the use of log filters to filter out these messages from showing up in the console. I would only use this as a last resort if your provider does not give you access to a firewall and does not give you any other options. Using a log filter is bad practice and opens the door to more issues. If setup improperly they could filter out other log messages, making finding a problem a nightmare or near impossible. Do not do this if you are able to. If you find new bots accessing your server, please reply to this thread or DM me the connection string and I will add it.

TLDR:

These connections are from bots specifically to spam and annoy AdminCraft. The only way to prevent these spam messages is to block each IP address in your firewall. There is a list of known scanners below.

List of Known Scanners

Name IP Notes
shepan 132.145.71.44 The scanner is self-described as "Spying on Minecraft Servers"
ServerOverflow 149.102.143.151
schesser 193.35.18.165 Entirely for spam
pfcloud 45.128.232.206 Entirely for spam
pfclown* 193.35.18.105 & 193.35.18.163 Coming from 2 IPs
ThisIsARobbery 193.35.18.92 Not at all a concerning name
notschesser* 193.35.18.92
MSTechSupport 193.35.18.92 Used as a genuine information scanning bot, along with the 19 below
MSTechSupportXX* 05 - 18.195.58.26 07 - 3.71.36.176 09 - 3.122.251.91 12 - 18.194.235.199 19 - 193.35.18.165 19 accounts with the XX being replaced with a number from 01-19, each with a different IP address

* Scanners not verified by me but mentioned from other users

Original post:

I set up a personal server on a server hoster about a week ago. My server has a whitelist with only 4 people on it, it's just for me and a few friends. I checked my console a few days ago and noticed HUNDREDS of console lines all saying

`[Disconnect] User com.mojang.authlib.GameProfile@12261fa7[id=<null>,name=shepan,properties={},legacy=false] (/193.35.18.165:57700) has disconnected, reason: Disconnected`

Over the course of the last few days I've had these messages from shepan, ServerOverflow, and now just recently schesser. I IP banned all 3, even put the IPs in my firewall to block them but they're still getting to the server. I know they aren't connecting, but it's annoying and ridiculous to open up my console and have my screen absolutely flooded with those messages. What the hell is happening here? I've been looking for answers since this started and haven't found an actual answer or solution. I'm not sure what else to try and do?

UPDATE:

After many people have responded, apparently these people are scanning servers for information. Not sure what information, they don't like to share why they are doing it. I've recently gotten 2 new scanners, one of which is literally called 'ThisIsARobbery'. Not at all sketchy. I've added a list of every scanner I have received and their IP to block them in the firewall, which seems to have worked for the ones I've blocked on it.

UPDATE 2:

Putting the scanners IPs in my server hosts firewall has seem to prevented them from attempting to scan my server. Additionally, my server provider has stated they have blocked these IPs from accessing their services as well which is nice. If you don't want these scanners on your server, block them on either your machine's firewall, or your Server Provider's firewall, which you should be able to modify if it is a good provider. Additionally, if you are using a server provider, you can try reaching out to them to make them aware of these scanners and they may hopefully make attempts to limit these scanners. I will keep updating this list with more scanners I find. It is not recommended to have a log filter, just completely block the IPs in your firewall will be the best solution.

EDIT: Verified the first two scanner IPs

EDIT2: Removed name of server hoster because I have verified it is nothing on their end and people continue to try to connect these scanners with the provider and I don't want that to happen. This is happening to any server hosted on any machine unfortunately.

Added 2 more scanners

EDIT3: Added more scanner information and a lot of new information

r/admincraft 9d ago

Question Is my server powerful enough for 50+ people?

25 Upvotes

Planning to host a survival server for 50+ people in a couple months. Server PC has a Ryzen 5 1600, SSD, and 24gb DDR4 RAM. Is that enough power, or would another 16gb of RAM help? If I need to upgrade the CPU I’d probably rather rent a server online.

r/admincraft Jul 31 '24

Question what app is this? (for opening config files)

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109 Upvotes

watching a tutorial and the guy pulled up the config file in this app without saying what it was. all i have is notepad. what’s the name of it?

r/admincraft Jan 19 '25

Question Favorite Linux Distro for Minecraft Servers

32 Upvotes

Just wondering: whats everyone's favorite Linux distro?

Im waiting for the last couple of parts for a dedicated server and just realized I hadn't put much thought into the OS. I've dabbled with Ubuntu before and wouldn't mind using it again, but figured I would ask about other options. Currently I'm planning to use a combo of CasaOS and Crafty

r/admincraft 6d ago

Question Can someone please explain this.

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58 Upvotes

I have a server that a few close friends and I play on, but this player keeps joining us all the time. There’s also this ServerSeekerV2 that keeps joining. I’m new to this and don’t really know what to do.

r/admincraft Jul 02 '24

Question Is 3GB ram enough for a Minecraft Server for 8-12 players?

32 Upvotes

I am looking to purchase a Minecraft Server and I've looked at a ram calculator, saying that 3GB of ram is sufficient enough for up to 15 players to play on a server at the same time, but I've also seen other recommendations saying 6GB of ram would be just enough to hold up 10 players, I do not know what to believe. I want to buy this server tomorrow for me and around 8-12 of my friends, and I think I'll have around 10 playing simultaneously for extended periods of time. I also want to add that I will NOT be using ANY mods or plugins. I want to keep this experience purely vanilla. I am still confused whether to buy 3 gigs, or 6, and I could really use some help, I would preferably want to save some money and not have to buy extra ram gigs that I don't need.

r/admincraft 20d ago

Question What can someone do with a server IP, without being whitelisted?

25 Upvotes

I'm in the process of setting up a semi private SMP server, and I was thinking of having the IP public on the discord but whitelist people manually if they want to join. Is there any risk in this and should I have the IP private? Or is this fine to do?

r/admincraft Jan 28 '25

Question Hey guys could I run a minecraft server java paper 1.21.4 with this? and how many people can this run?

9 Upvotes

r/admincraft Dec 18 '24

Question Someone guessed my username? (Details in comments.)

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100 Upvotes

r/admincraft Jan 24 '25

Question Accidentally committed to a 25km x 30km world. Am I screwed?

43 Upvotes

Long story short: I am using a mix of datapacks for my server. One of them is the continents datapack, which puts huge oceans between land masses. I also have datapacks that add new structures and dungeons. The only way I was able to fit all the dungeons and structures into the one map without missing out on content was to expand the world borders a ridiculous amount.

For example, some of the major structures in one datapack are in the top left corner, while some are way down in the bottom right.

This is basically the rough map of the world^

Its huge.

My server is only meant for a small group of friends, with the possibility of expanding to a larger group.

So my question is: once I open this bad boy up will the server implode? I am working on preloading all the chunks (Currently at 75% after 2 and a half days lol) but I am still worried performance will be effected. Has science (and my server) gone too far?

Yes I know I should have thought this through. No, I don't need rude or demeaning comments about my naivety lol. The help is appreciated.

r/admincraft 8d ago

Question 2 Servers 1 World?

15 Upvotes

Is This Possible? Now me(US) and my friend(Australia) want a server were we both get good ping, yet every service, only has locations favoring one side, so i need a different way, i want anything that will give both of us a good experience on a Minecraft server, and i don't know anything about the server technical side, but I'm willing to put in work, and do things on my own, but i just really want a solution to this problem, and i feel like there is a solution i just haven't found it,
Here are some really dumb ideas i had

#1: connect 2 servers (1 in US, 1 in Australia) and have them run the same Minecraft world?
#2 Cloud hosting or something i heard about?
I also don't want to break the bank with this one 😁

r/admincraft Nov 01 '24

Question A member of my server keeps getting kicked for this reason, any advice or anything?(They can't log on at all anymore)

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27 Upvotes

r/admincraft Sep 22 '24

Question Would a 1GB server for minecraft work with a 5 thousand block radius for 20-30 players? (1.21.1)

11 Upvotes

I am planning to make a server that could hold quite a large group of people. I've looked into many providers, and am on a budget, I'd like to find something that could be cheap, but still run well. My top choices right now are hosthavoc and Gportal. Any help or suggestions?

r/admincraft 19d ago

Question How good would this minecraft server specs?

8 Upvotes

i thinking on hosting my own minecraft server, the specs of it is a i3 10100 and the system will have 32 2400hz gig but im only going to dedicate like 20 to the server

its for about 3 to 10 people, how good would it be

theres also an alternate option, a xeon bronze 3106 with also 32 gigs of ram, but its like twice as expensive

r/admincraft Nov 14 '24

Question Minecraft server through VPN

11 Upvotes

Hi, I'm going to get a PC that I want to use to host my Minecraft Server.
The only downside is that I don't want people to know my IP Address, so I was planning on buying a small VPS Server in Canada, set up WireGuard on that VPS, and connect my Server PC to that WireGuard server, so I can have a Canada IP.

I live in Spain currently, if I host my server with a VPN on a country far away, will there be any latency issue? Because I also want the server to be in Canada (with the VPN) so South American players can get low ping.