L2J Server

Hello,

I have a server on linux. and i disable icmp ping. I want to use online status for server on my website, but if icmp is disable, fsokopen function doesn't work.

I see that hopzone and topzone use a method to check server status that work.
Can anyone tell me what method they use?
or share a script wich doesn't use fsockopen?

Thanks.

i'd be intrested in that too.