Hey guys its Straight, these commands should work for most of the private servers you own or are currently in. I just want to let you now, all servers are different based on the repacks used on the server. I do not know for sure but some of these commands may crash the server and you must reset it (Mainly just for GM's / Admins)

Player Commands
@help
@buytetris
@rebirth
@rebirthw
@rebirthhp
@rebirtht
@rebirthb
@rebirthm
@rebirthcw
@rebirthcp
@rebirthcm
@rebirthct
@rebirthcb
@gmjob
@gm (message)
@beginner
@Hero
@Paladin
@darKnight
@fpmage
@ilmaje
@Bishop
@Bowmaster
@marksman
@Nightlord
@shadower
@buccaneer
@corsair
@Dawnwarrior
@blazewizard
@Windarcher
@nightwalker
@thunderbreaker
@joinevent
@Presnotice
@President
@Presinfo
@SavE
@goafk
@expfix
@goafk
@CoDy (yes, !)
@shop
@spinel
@Styleme
@Dispose
@togglesmega
@go (place)
@buffme

Donators
@buffme
!online
!shout (msg)
!goto (name)
!sexchange (person)
!storage


GM
!ap number
!reloadmap
!chattype
!cleardrops
!cody
!dc
!dispose
!clock
!cleardrops
!servermessage
!exprate
!goto
!fame
!giftnx
!gmshop
!heal
!id
!pos
!spawn
!warpmap
!healmap
!item
!drop
!job
!jobperson
!kill
!killall
!levelperson
!levelpro
!jail
!ban
!event
!levelup
@check (yes, these are GM only)
@hug
@Rape
@poke
@penetrate
@kiss
@slap
@kick
@Punch
!maxstat
!maxskills
!mutesmega
!mesoperson
!mesorate
!mesos
!say
!notice
!popup
!ox
!pap
!pianus
!search
!servermessage
!warp
!warphere
!setall
!unban
!sp
!givedonator
!seduce
!seducemap
!duncan
!takedonator


Admin
!horntail
!pnpc
!pmob
!npc
!saveall
!pinkbean
!playernpc
!setgmlevel
!shutdown
!sql
!sqlwithresult
!zakum
!writecommands


P.S: Sorry if you just got mentioned. :P