Anarchy Server Basing

Once you've got a stable food supply and some basic armor (following the survival guide), it's time to move on. Staying at spawn forever won't get you anywhere, so if you want to "rank up" in the server by getting late game armor, you have to move out.

Step 0 - A Dilemma
If you do not have any late game items (shulker boxes, gapples, max enchanted diamond armor, etc) you have a dilemma. Two things that you want to do are duping and base hunting, but you usually cannot do both at once. If you choose to base first, you will be able to dupe some of your stuff (like gapples or XP bottles) and be better prepared, but you will be missing out of some things like max enchanted diamond tools or elytras that you probably won't be getting easily. On the other hand, if you base hunt you may get some good stuff, but then when a new dupe gets discovered you're forced to quickly gather the resources needed for duping.

This doesn't apply if you got lucky and found some OP stuff (especially shulker boxes) before you ventured out, but it is a potential issue you face when surviving on anarchy servers.

If you have some money to spare, you can look up some shops where you can buy some kits with real life money. Be warned, though, that you can easily get scammed. Luckily, they should be very inexpensive because of the number of dupes that servers have faced.

Step 1 - Preparation
Note: If you managed to get in the nether straight from spawn, try to find a portal that will land you ~10k blocks away from spawn and try to survive there.

Before you go out into the wilderness, it is good to prepare.

First, use hacks! You will need to X-Ray out any potential bases, track potential enemies, and find fast escape routes. If you don't, you're at a massive disadvantage!

Have at least 1 stack of food, as you will be moving away from your farm and getting food along the way is annoying.

Have at least iron armor, to protect against mob attacks.

Have an arsenal of tools ready, including a bow, to protect yourself.

Have a stack of wood, because you'll need to build out if you fall down.

Step 2 - Overworld Walk
If you are not that far from spawn (<10K) and you are in the overworld, it is not recommended to jump into a nether portal right away, as spawn is choked with withers. Instead, it is recommended to go outside the 10K area and then find a portal. Also remember to have the hack "PortalGUI" in case you get into a trap portal.

Step 3 - Nether Walk
Once you've got the obsidian, you need to go through the nether to walk faster. Make sure to carry enough obsidian and flint and steel to make a return trip!

Also get a bunch of stone picks and some diamond ones as well, as you'll mainly be going through the ceiling to avoid mobs.

You can avoid (most) tunneling by going through the middle (Y=40-60), but obviously it is more risky.

When you arrive in the nether, make sure no one is following you, and start tunneling. If you want to drive off followers it is recommended to tunnel a bit, walk several hundred blocks normally, and then tunnel again. Also try to set up a bunch of intermediate portals to drive off anyone who follows through, if you know you're far from your ideal location.

Following someone else's tunnel is okay, but it is recommended that when you are far out enough that you branch out.

Because of the way nether portals generate, you most likely will be placed near someone else's tunnel when you enter the nether for traveling. If you are thousands of blocks off both axises, you will not encounter other players, as they will usually be traveling on an axis.

Once you've gotten to your approximate destination, you can built a portal and go back. The surrounding area should not have nether portals nearby, and it should probably not be next to any highway.

Step 4 - Overworld Walk II
After you've entered the overworld again, it's time to find a location to base. I wouldn't recommend creating the portal right next to your basing location, because in the event of a rare emergency (the server goes down, you remove the portal incorrectly, etc), you at least have a last line of defense against getting your base found. Besides, the position probably isn't ideal for basing either.

Now, set a bed right outside your portal in the overworld, and break the portal in the nether with only a diamond pick in your inventory. Walk into a large puddle of lava to die, while ensuring that any XP or items dropped are destroyed by the lava. This is critical, and all your efforts will go to waste if you fail to do this correctly!

Also, for any anarchy server where the seed is known, don't base next to rare structures like woodland mansions or in rare biomes like mushroom fields. These are special interest areas that will generate a lot of traffic, and you don't want them to find your base when someone shows up. Make sure the nether equivalent of your overworld coords doesn't land in a nether fortress, because people really like to build portals near landmarks.

The overworld coords that you land in should be in the hundred thousands on both axises no matter what server you're on. For anarchy servers that can get almost 100 players on, you should be closer to 500K than spawn. For 2b2t, you might as well base past 500K.

Make sure your coords are not close to special numbers. This includes round numbers like 600K, but also numbers that people like, such as 420K or 133.7K.

The leading digit of your X and Z axises should not be the same. Remember that diagonal highways are used often for travel, so being that close will put your base at risk.

Step 5 - Basing
Place your items down in a chest, and start mining resources for your base! It is practically useless to try to "conceal" your base by hiding it in a tree biome or by using natural resources, because if someone goes near it with ESP they're going to find it no matter what. The best way to hide the base is to make sure no one goes near it in the first place.

Make sure you know where the villages are, because trading will come useful once you can farm for resources!

What I would do is create crop farms and also try to grab every item that is available in Minecraft. Things like sponges or totems are obtainable easily once you're far, so make sure to have those. You should keep some important items in your ender chest so you don't lose everything if you base gets griefed. Additionally use items frames or mineshafts to hide items deep underground.

If you are going to put down a bed (which is recommended) it is best to put dozens of beds, so in the case that someone does find your base and they want to trap you, you'll be able to get out.

AFK-Fishing also works really well, because you're far now, and no one will be able to disrupt you. This will probably be your primary food source.

Bonus: Duping
Eventually (hopefully), you will come across a dupe to use. If you have kits (shulker boxes of maxed diamond armor/tools) that someone gave you or you found, be sure to dupe as much as you can. Before you know it, you'll be rich!