Cannot log onto my own bukkit server? HELP!

I'm using the right version of minecraft for the version of bukkit, but it just says pinging. There are also no errors when I go to start up the server. Here's the server properties
#Minecraft server properties
#Sat Jul 12 23:17:42 EDT 2014
generator-settings=
op-permission-level=4
allow-nether=true
level-name=world
enable-query=true
allow-flight=false
announce-player-achievements=true
server-port=25566
level-type=DEFAULT
enable-rcon=false
force-gamemode=false
level-seed=
server-ip=
max-build-height=256
spawn-npcs=true
white-list=false
spawn-animals=true
snooper-enabled=true
hardcore=false
online-mode=true
resource-pack=
pvp=true
difficulty=1
enable-command-block=false
player-idle-timeout=0
gamemode=0
max-players=20
spawn-monsters=true
view-distance=10
generate-structures=true
motd=A Minecraft Server
=======================
I've tried EVERYTHING! Can someone help me?