I could attack other players in my first world. But No one can attack each other in other world. Well, I'm using plugin name My World to create a new world. (I'm not good at English, but I have picture to describe what I want to do, sorry about that) I did try change My World files to make those worlds a PvP world, but nothing happened.
http://pastebin.com/943i9Zq0# I think you might wanna look at world.yml too. I have changed all pvp row to true, but I still couldn't attack anyone. I could attack only in iZone which I have flagged them as a PvP zone. (Which I have meant to make it as non-PvP Zone)
I checked no one is god. And yeah my server.properties got that. I don't have world guard (because I use 1.2.3 R0.1 implement with 1.1 R6, so I can't use it)
To Harry8550: I have... World Portal Orebfuscator GroupManager SimpleSignEdit iZone FatGiants Vault CookieMonster TopPVP SignCodePad PreciousStones, KarmicShare DisguiseCraft LotteryPlus pvparena TravelPortals Turnstile BKCommonLib Lockette My Worlds Bankcraft MobArena FoundDiamonds MailBox SimpleHat AutoAnnouncer MobHealth Essentials ShowCaseStandalone EssentialsProtect EssentialsSpawn ChestShop Ps. Vault is not compatible with my version so I just put it in there I mean there is a vault.jar, but there is no config and setting folder.