There is some one who's dosing tremulous servers rcon.
I first came across this problem when hibby(owner of aa) asked me to look into a non responsive rcon issue.
at first changing out the server.cfg worked but soon after rcon became unresponsive again.
Then from word of mouth i learned archangel was dosing aa servers rcon, contacted maverick(noghost) host of aa, he handled problem by calling isp ect.... all that good junk.
around 4am the same day a server i run 000000.> began getting this from my attached console.
Bad rcon from 201.233.109.48:1661:
Bad rcon from 201.233.109.48:1661:
This is just a warning to other server owners espically those who host and use web ftp and web rcon, if you're experiencing rcon failure it might be because of an attack on your server.