Under DoS attack

Good day fellows.

I have a few websites based on wordpress that are hosted on VPS with 1 gb burstable. So everything was peachy ,server load never exceeded 3 (4 cpu setup) and one day about a week ago my server goes down. I reboot and it goes down almost immediately.
I checked Apache log and found out that I was bombarded by countless proxy connections.
I don't know whether it was one of the competitors or the fact that I just uploaded 25000 pages in database but it is insane.
I contacted hoster and they said the only thing they can do is to upgrade my plan for more ram which I can't afford at the moment so I took the site down.
I am pissed.Not sure what to do ...
I hired a sys admin to install and configure the firewall,installed several plugins that suppose to filter out proxy connections and malicious requests still it's overloaded with requests.
Just venting I guess...

f.....ng competitors
everyone have to be prepared - there are softwares under linux that can filter requests from range of IP addresses when they escede number of connections

that sucks. i had a site get hit too. good luck.

that sucks i have been there . Dos attacks can run for weeks and more
complain to your vps company the gotta do something about it

cheers

Go to http://www.blacklotus.com - they have dns and ddos protection. Call their 24/7 infoline and they will help you. They have ddos protected hosting as well... Good luck!!!

try to install mod_evasive if you are running Apache or build a custom IP blocking script and block them one by one (they cant have endless amts of IPs).

if you need someone who actually deals with dos's on a regular basis feel free to contact me