Hello,
I am linux system engineer working with web hosting company from past two years and having knowledge of maintaining linux servers, security issue, software installation, server installation, DNS configuration & server migrations, Monitoring servers, Spam mitigation and DDOS attack prevention, Working on server related internal tickets, Installing open source applications like red5, openmeetings, wordpress openfire, subsonic, etc. hosted on VPS or Dedicated servers, Installing, configuring, managing and troubleshooting Linux, WHM/cPanel, Webmin, Webuzo and Plesk,
Solusvm/Virtualizor (openvz technology), Transferring accounts between servers when necessary for account upgrades using rsync, ftp, scp or via cpanel transfer, Implementing & administering various security and performance enhancements such as mod_ security, CSF/LFD, IPTables, etc, SSL setup for websites, Backup maintenance using cPanel or commands.
Sir based on your description you are facing DDOS on your server so if you give me chance i can solve the problem for you, As i can see your server is having still the same problem. If no one able to fix it, Please give me chance.
You don't have to award me project or pay the money until you will satisfied. My main concern is your satisfaction not the money. I can complete you job for $165.