everytime someone tryes to join my server it says unable to verify username how do i fix this please help
It's still acting up... Lots of users complaining! KrisJelbring from Mojang says it's working... I think not!
The last I heard was they were waiting for the DNS records to be updated, which in my experience take 24 hours +
For the last time, There is an issue with mojang im sure many cookie monsters of the mojang team are dealing with this. So be patient and wait till there minecraft database of usernames is back and running, so untill then I suggest you go outside, and turn off the computer.
Or code plugins for bukkit and test it on your own offline server. Then maybe learn the some C. Maybe a few cups of tea too