I had a quick look over the documentation and I couldn't find away to do so. You could either request that as a feature here or you could use WorldGuard to make regions around the towns, Then set flags so only the people you specify (or groups) are allowed into the area. If you need more help with the second option - PM me on the Bukkit Forums (shadrxninga).

Minecraft isnt caching it in the traditional sense of the word, the data has to be stored in memory owned by minecraft at some point, in order for minecraft to do anything with the data. Even reading it! Therefor it is not possible to totally disable 'caching'. Its also not possible for minecraft to just use the memory of the RAM disk directly, it has to go through the operating system first, which adds quite a bit of latency (nothing compared to HD access, but compared to RAM access). So it's not useful to just disable caching, it might be possible to reduce the time until chunks that aren't near any players are unloaded with a plugin, but I have been unable to find one. One hackish way that might work is to reduce the maximum memory minecraft can use, that would force it to unload unused chunks faster. Of course, the only wasted RAM is RAM that's not being used, so (on a dedicated machine) there is no harm in letting minecraft store something it can access very fast.

You are providing your friends with the wrong IP address. Follow these instructions to retrieve your global IP address, and ask them to connect with that. Disclaimer: This answer comes from having absolutely no knowledge of Minecraft what so ever. From what you have led me to understand, you're issue stems from core networking issues, so this should apply to Minecraft just as it would to any other server you were trying to set up. First, let's make sure we are on the same page. You have a Minecraft server with the IP address of 192.168.... You are on the same network as this server. It is your own computer, or it is otherwise running on a computer within your house. You are able to connect to the server. Your friends are trying to connect from outside your house. Your friends are not able to connect to the server. You are providing a local IP address The address you provide is explicitly used to identify a local device. That means I could use it to connect to your server when I am in your house and connected to your network. As soon as I have to connect using the Internet, that address means nothing. You need to use a global IP address Never fear; your server already has one of these, and it is pretty easy to retrieve. All you need to do is google "what is my IP address" from the same computer. Google will tell you what it is. Copy it down. Try using that IP address to connect to your server. Do not tell us what that address is. Make sure that the person in charge of the network gives you permission to provide this address to other people. Providing this IP address to anyone could be a serious security risk, even if you know them.

You can't. /powertool bindings are per-player, so handing someone else a stick that you added fireball effects to will only work for you, regardless of them having permissions or not. For someone else to use it, they will have to redo the set of /powertool append XXXX or /powertool [name] command(s) you used. Also, you can't reuse multiple command sets on the same item type; ie. a fireball stick and a lightning stick. tl;dr Not supported.

A method of mitigating griefing is keeping a history of the world. The simplest way is to regularly backup the world. However, there is an automated way to do it using LogBlock. If you have WorldEdit installed, you can select a region and rollback a section of the world, undoing any griefing that has happened.

I think it should be possible using the /execute command. /execute in run tp @a[nbt={Dimension:""}]

There is: Step 1: Download bukkit https://getbukkit.org and rename the file to bukkit.jar Step 2: Make a folder at your desired location and name it whatever you want Step 3: Copy the jar to your server folder you just created Step 4: Open cmd or terminal depending on your OS and do cd yourFolder/Directory java -Xms2G -Xmx2G -jar bukkit.jar You can replace the 2G with 4G or 1G basically the amount of RAM you wanna use Step 5: Now if you open the folder you should see that there are some new files created if you did everything right Step 6: Open eula.txt and change the 'false' value to 'true' Step 7: Open server.properties and set the server-ip to localhost or 127.0.0.1 which will run the server on your own computer Step 8: Go to your terminal or cmd and type stop Step 9: Type java -Xms2G -Xmx2G -jar bukkit.jar again or create a bat file for easier access Step 10: Now the server will actually start and you should see the plugin folders and other server folders created now you need to put the plugins you wanna use in it Step 11: Now go to Minecraft then direct connect and type the ip 'localhost' or 127.0.0.1 and there you go you're gonna join the world like a single player only on your computer. The only downside is that you can't pause the game. Now whenever you wanna play just do that command in terminal HOPE IT HELPS

Start with importing the project into your IDE. The next step is to add the newer version of the API to your project's build path. If the project is using Maven or Gradle, the API should be listed as a dependency in your pom.xml (for Maven) or build.gradle (for Gradle) and you can change the version by editing those files. If the project doesn't use Maven or Gradle, you will have to add the API manually. How you do that depends on which IDE you are using so Google it. After you've added the API to your project's build path, your IDE should display errors if the plugin is using parts of the API that changed between those versions. Fix the errors if there are any and test the plugin. From here, it's basically just testing the plugin and fixing anything that doesn't work.

WorldGuard (Download) appears to have the ability to prevent certain mobs from spawning (Control+F -> "block-creature-spawn"). At the time of this writing, it appears to be up to date.

Permissions' functionality is being built in to Bukkit. There's a transitional plugin in the meantime called PermissionsBukkit so that plugin authors can start using the new built-in Permissions API before it is completely rolled into the server. This is the version that you'll need to install to be able to use most of the actively-maintained Bukkit plugins.

This particular mod was designed for vanilla, offline Minecraft, so you aren't able to install it onto a Bukkit Server. However, had it been a Bukkit-compatible mod, you would download the files of the mod. Sometimes, you are provided with only a .jar file (ex. SomeBukkitMod.jar) – other times you are given a .zip containing a .jar and also a directory with the name of the mod containing preference files. Whichever you're given, put the files in the /plugins directory of your Bukkit Server. Despite this, it seems a Minecraft Forums user by the name of krnlyng has ported a few vanilla Minecraft server mods over to Bukkit, including BuildCraft. This thread is linked to from the official BuildCraft thread so I'm assuming it's reliable; at the time of writing, though, it's only compatible with 1.7.3.

If you have protected (uneditable) blocks, you can build this as a redstone mechanism. Start with a long-period clock (there are several ways to do this), 5 stone pressure plates, and a dispenser. Construct the logic circuit not(or(edge-detector(clock), not(plate), not(plate), not(plate), not(plate), not(plate))) and connect it to the dispenser. The dispenser will dispense whenever the clock triggers as long as someone is standing on every one of the pressure plates. (They can also be triggered by mobs, creating the possibility of alternate solutions such as one player with four wolves and a bit of patience to herd them.) The dispenser will need refilling (the maximum capacity is 576), but perhaps you can find a mod for infinite dispensers. Or, if you can produce a device (such as a mob trap) which generates a stream of items of the type you want to dispense, then you can have the pressure plates wired to pistons to switch the item stream from an item destroyer such as cactus to the players. Let me know if you'd like more engineering details.

When you op a player in a vanilla (or bukkit by extension) server, it usually sets their op level to 3, meaning they can ban, kick, op, etc. in addition to use cheat-commands and command blocks. However, if you manually set their op level to 2 instead of 3 (you can do this on your server in the file ops.json), they can access command blocks and only use cheat-commands; i.e., they cannot op, ban, kick, etc. other players. You can read more about operator levels here. Note that this will also allow them to manually use every command that a command block can run, like /gamemode, /fill, etc. I have not tested this with bukkit essentials, but I would assume it works based on the op level as well. EDIT: I should note that the player must be in creative mode in addition to having operator level 2+ to interact with command blocks.

This is most likely a plugin command conflict problem; this happens when two commands register themselves as "/give". My suspicion is that you have "Essentials" or "EssentialsX" installed on your server as well. The Essentials "/give" command does not accept NBT data; however, the minecraft "/give" command does. By default, Essentials registers itself as the main command; to override this and tell it you don't like its decision, change your commands to: /minecraft:give @p diamond_sword{Damage:1000} 1 and /minecraft:give @p minecraft:diamond_sword{Enchantments:[{id:sharpness,lvl:2000}]} This is a really annoying issue I deal with all of the time on servers. Bukkit/Spigot is supposed to allow you to set the default back to minecraft, but for some reason that option is broken right now so you'll have to use the namespace for the vanilla command.

I set up a Spigot server with Skript and added the script file you've provided. When the /overworld command is run it displays this: Teleporting... [Server: Gamerule sendCommandFeedback is now set to: true] To remove the latter line, simply do this: Permanently set sendCommandFeedback to false. You can also not enable it in another script! As OP in Minecraft or with spigot command run: /gamerule sendCommandFeedback false It will not display anything, since you're turning it off. Use this script instead: command /overworld: description: go to the overworld aliases: earth usage: /overworld permission: skript.overworld trigger: message "&6Teleporting..." make player execute "/execute in minecraft:overworld run tp ~ ~ ~" Now it should only say 'Teleporting...', and that is only shown to the player running the command as per the documentation of Skript. Obviously this method won't work if you ever need actual command feedback, but I haven't found any other workaround so far.

Currently, the random ticks only happen within the 16x16 chunk area around the player. That means even keeping the chunks loaded doesn't help if there's nobody within the radius. The common vanilla approach is to move the farm near frequently visited areas, where players' presence will keep the farm active. Alternatively, just afk near the farm to keep it running. The somewhat less vanilla approach are server-side bots (e.g. provided by the Carpet mod) - they act like players for the purposes of random ticks and mob spawning. And the sneaky approach is to build a zero-tick based cactus farm, then afk by it for a couple hours. It will produce more cactus than you'd know what to do with. I'm not sure if it works on Craftbukkit though.

If you have set the bed properly you and the admins can access it properly. However, depending on their config you may need to have slept in it in order to get saved. Also it is possible to have it deactivated in the config completely. You can only try now... For you: /homes (display all homes) /home bed (teleport to your last bed) For admins: /home :bed (teleports them to your bed, if one is set) /home : (shows a list of your homes) The : is important or else it won't work. In case you don't have set your bed home properly and the server has a logging plugin the admins can look up when and where you have placed a bed. It's a more painful way, but it should work. I've done that several times on my server already. The command for that depends on the plugin they're using.

It's based on the seed (like biomes), so no. However apparently there are map tools that will mark slime places for you on a generated map.

I would suggest using something other then PermissionsBukkit for now. The Bukkit team is swamped with other stuff, and because of that have switched there focus away from the Permissions system. PermissionEx is a great alternative

You can use the very simple (yet effective) WhichMobs plugin, to explicitly turn off certain mobs from spawning. All it would take is a simple ghast = false in the property file for the plugin to turn Ghasts off. You could also use NoSpawn and MobToggle, all of which accomplish the same thing. Also, if you would like to keep Ghasts floating around but at the same time don't want them to destroy your buildings, you could install StopMob, which will stop mobs from being aggressive, yet keeps them in the game.