Editing Tutorials/Setting up a server (section)

=== Firewalling, NATs and external IP addresses ===
* You must open a TCP/UDP port (default is 25565) on the firewall.
** If the server in question is not reachable via a globally routable IP address, you will need to add appropriate address and/or port number translation rules to the gateway — usually your router has the global IP address.
* For help with address translation, opening the firewall and routing (these three make up what people call port mapping/forwarding), [http://portforward.com/english/applications/port_forwarding/Minecraft_Server/Minecraft_Serverindex.htm portforward.com] is a good source. Select your router from that list, skip the ad that comes after selecting the device, and you will see instructions for setting up port forwarding. Alternatively, you can read the documentation supplied with your router, modem, or other ISP related hardware.
* Verify the port is open, and note your external IP by using a port checker tool, such as [http://www.yougetsignal.com/tools/open-ports/ You Get Signal]. The default port you should test is 25565, unless you specified something else. '''Have the ''Minecraft'' server running when you test the port'''.
* You can obtain your external IP address from [http://www.yougetsignal.com/what-is-my-ip-address/ YouGetSignal].

==== Local network dedicated servers ====
''This only applies to Classic (v0.30) servers.''

A common problem for server administrators is the inability to connect to your own server via another machine on your local network. A typical scenario for this is that you have a Classic server running on a dedicated machine, and you have your own machine which you play on. They're both connected to the same router/switch, and have internal IP's with the octets '192.168.x.x'. Normally, connecting via the URL generated for your server will result in an error message claiming that the server is offline.

To correct this, you must add a function to the end of your URL, bookmarks, or whatever else you connect by. The function is: '''?override=true'''<br>
Example: http://www.minecraft.net/classic/play/4c3bebb1a01816acbe31c5ece1570da5?override=true

Previously, (before the 1.8 beta and website update) this was '''&override=true'''. This caused much confusion since the change was not announced by [[Mojang]], and wasn't announced on the website applet pages either. Before the update, connecting to your own URL via the website resulted in red text under the applet window saying "If you can't connect, try ''this link'' instead." The link returned the same thing, with the &override=true affixed to the end.

'''Note:''' This situation does not effect Beta servers, and you should be able to connect via an internal or external IP.

==== The SRV record ====
''Java Edition'' since [[Java Edition 1.3.1|1.3]] also supports using custom ports without requiring the player to type it. This is achieved by using a SRV record (for "service") in the DNS. The SRV record tells ''Minecraft'' the actual host and port to use; some DynDNS services and most static DNS services allow you to set it up.<ref>https://www.noip.com/support/knowledgebase/how-to-add-a-srv-record-to-your-minecraft-server-remove-the-port-on-the-end-of-the-url/</ref>

To manually verify the SRV record, use (assuming the player-facing domain is "YOUR.DOMAIN.com"):
<pre>
> nslookup -q=srv _minecraft._tcp.YOUR.DOMAIN.com
Server:  UnKnown
Address:  [REDACTED]

Non-authoritative answer:
_minecraft._tcp.YOUR.DOMAIN.com  SRV service location:
          priority       = 5
          weight         = 5
          port           = 65312
          svr hostname   = ACTUAL.DOMAIN.com
</pre>